Ariel Square 4 Motorcycles for sale

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1950 Ariel SQUARE 4

$35,500.00

Centre Hall, Pennsylvania

Year 1950

Make Ariel

Model SQUARE 4

Category -

Engine -

Posted Over 1 Month

1950 ARIEL SQUARE 4,

1950 Ariel SQUARE 4

$35,500.00

Centre Hall, Pennsylvania

Year 1950

Make Ariel

Model SQUARE 4

Category -

Engine -

Posted Over 1 Month

1950 ARIEL SQUARE 4,

Norton : Ariel Square 4 Mk II Custom 1953 ariel square 4 mk ii custom great running fully restored by marque expert

$17,900.00

Santa Monica, California

Year 1953

Make Norton

Model Ariel Square 4 Mk II Custom

Category Standard Motorcycles

Engine 1000

Posted Over 1 Month

Beautifully restored and customized by a marque expert! 1953 Ariel Square Four MkII Engine Number: XJ224 In 1928, engineer Edward Turner was shopping a new motorcycle design to English manufacturers. BSA turned him down, but Ariel was interested. The engine was an unusual four-cylinder. V-twins and inline fours, set both lengthwise and across the frame, had been used previously but Turner’s new design had two vertical twins sharing a common crankcase. The cylinder barrels were cast as a unit in a monobloc design. Their two crankshafts were joined by a flywheel and rotated in opposite directions. By having the two pistons of one crank at top and bottom dead center and the pistons of the second shaft at half stroke, the design was ingeniously compact and the firing order made it practically vibration free. The Ariel Square Four 4F made its debut at the 1930 Olympia Motorcycle Show featuring an overhead camshaft 500cc with a hand shift for the Burman gearbox, which was integral with the crankcase. Overhead camshafts and unit construction were well into the future for most firms, so Ariel was a real pioneer. Few knew then that the bike would become a legend of the British industry, both for its performance and dependability. The latter was underscored by the Square Four’s widespread used in the British law enforcement community. Improvements were continuous during the Square Four’s 28-year production run. In 1932, the 4F was taken out to 600cc, although the 500 remained available. The next year, a 4F 600 fitted with a supercharger lapped the famous Brooklands speed bowl at 110 miles per hour. The 4G was introduced in 1936 with a new 996cc overhead-valve engine. To accommodate the larger displacement, a new crankshaft was set in a much stronger crankcase. These years saw the British economy recovering in the run up to World War II, and Square Fours were seen on the road more often, where they were known as the “Monarch of the Multis”, referring to their multi-cylinder engines in a sea of British singles and twins. By the immediate post-World War II period, the 4G had a plunger rear end and telescopic front forks. Further refinement was added in the form of aluminum cylinder barrels when the Mark I began production in 1949. Introduced in 1953, the 'four pipe' MkII with redesigned cylinder head elevated the Square Four into the league of genuine 100mph motorcycles. To date, the innovative Ariel Square Four remains unique in motorcycling history; a true 'gentleman's motorcycle, this refined yet characterful machine retains an enthusiastic and loyal following, and is now a greatly appreciating classic, highly prized by discerning enthusiasts. The example offered here has been in the long-term ownership of a former engineer and motorcycle collector. A pet project, the bike started as a ratty barn find and was subject to a full restoration with all kinds of modification performed on a newly acquired CNC Machine. At the heart of the bike is a motor fully rebuilt by marque expert Chuck Walton. Chuck’s tally now exceeds 110 engine builds and so to say he is an expert of the Ariel breed is just scratching the surface. His knowledge is encyclopedic and having restored so many engines, understands every pitfall of the unique design and precisely how to prevent engine failure. Tricks to rod bolts (a well-known weak point of the engine), rocker arms, crank bushings, valve guides and springs ensure engines with great power, superb reliability and great longevity. The engine is mounted in its original and unmodified, unmolested frame, fully restored with a fresh powdercoat finish in black. From there, the modifications are abundant with an earlier Ariel tank with its wonderfully classic looking dashboard to small Bates-style headlight, exhausts, seat, etc. etc. The bike starts easily and idles well. It has the enormous grunt of a Square 4 of 1000cc and sounds great. It runs cool and strong, shifting well. Brakes and suspension work well. A favourite of the owner, the bike was built to be ridden and could be seen on many local club rides around the countryside of Southern California.

Trim Ariel Square 4 Mk II Custom

Norton : Ariel Square 4G 1948 ariel square four 4 g ireon head model fully restored runs perfectly

$19,900.00

Santa Monica, California

Year 1948

Make Norton

Model Ariel Square 4G

Category Standard Motorcycles

Engine 1000

Posted Over 1 Month

Beautifully restored by a marque expert! 1948 Ariel Square Four 4G Engine Number: CJ146 In 1928, engineer Edward Turner was shopping a new motorcycle design to English manufacturers. BSA turned him down, but Ariel was interested. The engine was an unusual four-cylinder. V-twins and inline fours, set both lengthwise and across the frame, had been used previously but Turner’s new design had two vertical twins sharing a common crankcase. The cylinder barrels were cast as a unit in a monobloc design. Their two crankshafts were joined by a flywheel and rotated in opposite directions. By having the two pistons of one crank at top and bottom dead center and the pistons of the second shaft at half stroke, the design was ingeniously compact and the firing order made it practically vibration free. The Ariel Square Four 4F made its debut at the 1930 Olympia Motorcycle Show featuring an overhead camshaft 500cc with a hand shift for the Burman gearbox, which was integral with the crankcase. Overhead camshafts and unit construction were well into the future for most firms, so Ariel was a real pioneer. Few knew then that the bike would become a legend of the British industry, both for its performance and dependability. The latter was underscored by the Square Four’s widespread used in the British law enforcement community. Improvements were continuous during the Square Four’s 28-year production run. In 1932, the 4F was taken out to 600cc, although the 500 remained available. The next year, a 4F 600 fitted with a supercharger lapped the famous Brooklands speed bowl at 110 miles per hour. The 4G was introduced in 1936 with a new 996cc overhead-valve engine. To accommodate the larger displacement, a new crankshaft was set in a much stronger crankcase. These years saw the British economy recovering in the run up to World War II, and Square Fours were seen on the road more often, where they were known as the “Monarch of the Multis”, referring to their multi-cylinder engines in a sea of British singles and twins. By the immediate post-World War II period, the 4G had a plunger rear end and telescopic front forks. To date, the innovative Ariel Square Four remains unique in motorcycling history; a true 'gentleman's motorcycle, this refined yet characterful machine retains an enthusiastic and loyal following, and is now a greatly appreciating classic, highly pri zed by discerning enthusiasts. The example of Ariel’s “iron head” offered here has been in the long-term ownership of a former engineer and motorcycle collector. A pet project, the bike started as a ratty barn find and was subject to a full restoration with a few modifications. At the heart of the bike is a motor fully rebuilt by marque expert Chuck Walton. Chuck’s tally now exceeds 110 engine builds and so to say he is an expert of the Ariel breed is just scratching the surface. His knowledge is encyclopedic and having restored so many engines, understands every pitfall of the unique design and precisely how to prevent engine failure. Tricks to rod bolts (a well-known weak point of the engine), rocker arms, crank bushings, valve guides and springs ensure engines with great power, superb reliability and great longevity. The engine is mounted in its original and unmodified, unmolested frame, fully restored with a fresh powdercoat finish in black. All cycle parts have been restored or refurbished. The result is a bike that starts easily and idles well. It has the enormous grunt of a Square 4 of 1000cc and sounds great. It runs cool and strong, shifting well with a good clutch. Brakes and suspension work very well for an old British bike. This is a great opportunity to acquire an increasingly rare piece of British history and style.

Other Makes : Ariel Square 4 1952 ariel square 4 mk i gorgeous example

$23,500.00

Burnaby, British Columbia

Year 1952

Make Other Makes

Model Ariel Square 4

Category -

Engine 1000

Posted Over 1 Month

vintagemunro Store I'm listing this machine for a long-time customer and good friend... English country cruiser capable of 100mph. The current owner is the fifth (first not named David) in a line that traces this 52 Ariel Square 4 Mk I’s origin to New Jersey; where it was purchased new in 1952. The most recent previous owner bought the bike while on a trip in N.Y. State in 1996. After the purchase he had a full restoration performed prior to displaying in his collection. Upon receiving the machine, the current owner kicked it over twice and it started right up and ran nicely. He rode it around his neighborhood for an hour, and then carefully decommissioned the Ariel for display in his collection. The odometer shows 56,818 km or 35,305 miles. The current owner has done a fair bit of detail work on the machine since acquiring it - much polishing, inspecting, cleaning and servicing inside external cases etc. He removed and cleaned the oil tank & lines and installed a rebuilt exchange oil pump from Dragonfly. The frame is refinished but not powder coated and makes it look very authentic. The tins are all superb in that they are original but refinished beautifully and correctly. Chrome is all perfect. All the of the wiring was redone correctly and everything works. Even the tiny light in the speedo and the brake light. (all the lights work in other words) The bike includes the original ignition key and the (optional?) jiffy side stand. The owner is in possession of a dating certificate with an extract from the Ariel Works Ltd. despatch record books confirming that all of the major components on the machine are original. With the exception of perhaps the rims, tires, spokes and buddy pad this bike has all of its original pieces, nicely and carefully restored. Also included in the sale are the original owner’s manual signed by the first two owners and a copy of the 1970 NY State vehicle registration bearing the name and signature of the second owner who purchased the bike from his friend and original owner in 1957. This machine has been extremely well cared for and is in exceptional condition - as evidenced in the hi-resolution images on my Flickr Album. To view the full-sized images on Flickr, click on the icon on the lower right of any image page and you'll be able to download or view all sizes. The machine is located in Burnaby, British Columbia, Canada (a suburb of Vancouver). We can assist with world-wide shipping - our customers have used the following companies with very good results: USA shipments: The current owner is prepared to transport the machine across the border to Blaine, WA and coordinate with a domestic US motorcycle carrier. If you elect to go this route, please budget about $325.00 for the related customs brokerage on top of the quote you get from a domestic US motorcycle shipper Optionally, TFX International specialize in moving high-value vehicles across the border and can be reached at the number below. Adam TFX International Specialized Vehicle Transport 11 City View Drive Etobicoke. ON M9W 5A5 Canada Phone 416.243.8531 Fax 416.243.8886 www.tfxinternational.co International shipments: Tony or Amanda Inter-Par Logistics Inc. 3845 Nashua Drive Mississauga, ON L4V 1R3 Tel.: 905-678-1288 Fax: 905-678-1289 e-mail: tl@inter-par.com or sc@inter-par.com We're happy to answer any questions at steve@loudbike.com - or you can call me at 1.613.230.7448 / 1.613.805.5401.

Trim Mk I

Triumph : Other 1958 ariel square 4 beautifully restored by marque expert extensive history

$34,900.00

Santa Monica, California

Year 1958

Make Triumph

Model Ariel Square 4

Category Standard Motorcycles

Engine 1000

Posted Over 1 Month

Beautifully restored by a renowned marque expert! 1958 Ariel Square Four Engine Number: CNML1879 Frame Number: CDM1809 In 1928, engineer Edward Turner was shopping a new motorcycle design to English manufacturers. BSA turned him down, but Ariel was interested. The engine was an unusual four-cylinder. V-twins and inline fours, set both lengthwise and across the frame, had been used previously but Turner’s new design had two vertical twins sharing a common crankcase. The cylinder barrels were cast as a unit in a monobloc design. Their two crankshafts were joined by a flywheel and rotated in opposite directions. By having the two pistons of one crank at top and bottom dead center and the pistons of the second shaft at half stroke, the design was ingeniously compact and the firing order made it practically vibration free. The Ariel Square Four 4F made its debut at the 1930 Olympia Motorcycle Show featuring an overhead camshaft 500cc with a hand shift for the Burman gearbox, which was integral with the crankcase. Overhead camshafts and unit construction were well into the future for most firms, so Ariel was a real pioneer. Few knew then that the bike would become a legend of the British industry, both for its performance and dependability. The latter was underscored by the Square Four’s widespread used in the British law enforcement community. Improvements were continuous during the Square Four’s 28-year production run. In 1932, the 4F was taken out to 600cc, although the 500 remained available. The next year, a 4F 600 fitted with a supercharger lapped the famous Brooklands speed bowl at 110 miles per hour. The 4G was introduced in 1936 with a new 996cc overhead-valve engine. To accommodate the larger displacement, a new crankshaft was set in a much stronger crankcase. These years saw the British economy recovering in the run up to World War II, and Square Fours were seen on the road more often, where they were known as the “Monarch of the Multis”, referring to their multi-cylinder engines in a sea of British singles and twins. By the immediate post-World War II period, the 4G had a plunger rear end and telescopic front forks. Further refinement was added in the form of aluminum cylinder barrels when the Mark I began production in 1949. Soon after WWII, an American Air Force pilot began flying back and forth from his base in California to bases in southern England. While on one of these trips, he discovered the Ariel Square Four and was smitten. He purchased a bike to run around the country lanes while in England and then, with a little room to “spare” on the return flight, he snuck the bike on and brought it back Stateside. Enjoying the bike in the Southern California backroads was the perfect setting and soon friends and colleagues became interested in the quirky British ‘four’ in a time the American competition offered nothing but archaic pre-war designs. And so a little side business developed with frequent trips to the UK and return flights with undeclared Ariel motorcycles and an abundance of parts filling the spare room of the planes. This continued on for many years, and the gentleman in question – let’s call him Chuck – made use of his engineering background and restored and maintained many Ariels. Practically starting the Ariel Owners Club, he remains an active member to this day. Retiring in 1990, the hobby continued on and to date, he has rebuilt 107 engines for himself and clients/friends and restored many bikes from the ground up. To say he is an expert of the marque is just scratching the surface. His knowledge is encyclopedic and having restored so many engines, understands every pitfall of the unique design and precisely how to prevent engine failure. Tricks to rod bolts (a well-known weak point of the engine), rocker arms, crank bushings, valve guides and springs ensure engines with great power, superb reliability and great longevity. The bike on offer is one of Chuck’s personal favourites, a 1958 matching engine, frame and gearbox numbers bike in the ever-stylish black colour scheme, which sets off the chrome accents so well. Originally brought in to the US in 1966, the bike was sold to a fellow pilot, who enjoyed the bike until a couple of years ago when it was placed in storage. Having survived 3 divorces and 20 some odd thousand miles, it was time for a full spec ‘Chuck’ restoration. Having just been completed, the bike is offered in stunning condition, with zero miles on the odometer of the rebuilt speedo (for $525!) since a total restoration. The bike was completely dismantled and every part was rebuilt, refinished and restored. Every part on the bike is original to the machine. At the heart of the machine is one of Chuck’s fully rebuilt motors. Rebuilt from the crank up and featuring all of his tricks and nuances, the engine is in fine tune with strong power, and sounds utterly fantastic with the cocktail shaker exhausts originally on the bike from the ‘60s, more like a Ford Flathead than any motorcycle I’ve ever heard. With the internal tweaks and oil cooler it runs well and at proper running temperature whilst doing so. Brakes and all suspension parts were restored and a new correct wiring harness was installed. The bike retains its hard-to-find original Lucas headlamp. Cosmetically the bike is exquisite throughout. The only departure from factory spec, apart from the exhausts, is the removal of the headlight cowl. This was a common modification, made in period, to give the bike a more sporting look over the standard, more gentlemanly appearance of a shroud housing the speedo. This is how the bike came over in ’66 and remains so. The frame was powder coated, and all parts painted, coated, rechromed and refinished. It is a truly ground-up restoration, where nothing was untouched, eligible for concours d’elegance prize or museum display, shame as that would be for such a great running example. Here is a great opportunity to acquire a fantastic riding Ariel Square Four built by a true aficionado, accomplished engineer and one of the world’s leading marque experts. It is ready to show, or ride anywhere and be enjoyed.

Trim Beautifully restored

1953 Ariel Square 4

$5,900.00

Madison, Wisconsin

Year 1953

Make -

Model -

Category Classic Motorcycles

Engine -

Posted Over 1 Month

Running, some scratches, leaks and other wear as to be expected with a vintage motorcycle.

1956 Other Makes Ariel Square Four

$20,000.00

Rochester, New York

Year 1956

Make -

Model -

Category Classic Motorcycles

Engine -

Posted 2 Weeks Ago

1956 Ariel Square 4 Mark II, Excellent Restoration Very Rare Motorcycle---- for more details and access to pics, click on the POSTED link below "Get newer pre-owned cars here".....

Other Makes : Ariel 1956 Ariel Square 4

$21,000.00

Abilene, Texas

Year -

Make -

Model -

Category -

Engine -

Posted Over 1 Month

1956 Ariel square 4 runs great, starts first kick. Everything on the bike works well. It does need front fork seals they are leaking a bit.It comes with a clear Texas title. Please ask questions

1952 Ariel Square 4 Mk I

$7,210.00

Clark, New Jersey

Year 1952

Make -

Model -

Category Classic Motorcycles

Engine -

Posted Over 1 Month

The frame is refinished but not powder coated and makes it look very authentic. The tins are all superb in that they are original but refinished beautifully and correctly. Chrome is all perfect. All the of the wiring was redone correctly and everything works. Even the tiny light in the speedo and the brake light. (all the lights work in other words) The bike includes the original ignition key and the (optional?) jiffy side stand.

1952 Ariel Square 4 Mk II - Gorgeous Example

$4,900.00

Norman, Oklahoma

Year 1952

Make -

Model -

Category Classic Motorcycles

Engine -

Posted Over 1 Month

The most recent previous owner bought after the purchase he had a full restoration performed prior to displaying in his collection. The odometer shows 56,818 km or 35,305 miles. My father has done a fair bit of detail work on the machine since acquiring it - much polishing, inspecting, cleaning and servicing inside external cases etc. He removed and cleaned the oil tank & lines and installed a rebuilt exchange oil pump from Dragonfly. The frame is refinished but not powder coated and makes it look very authentic. The tins are all superb in that they are original but refinished beautifully and correctly. Chrome is all perfect. All the of the wiring was redone correctly and everything works. Even the tiny light in the speedo and the brake light. (all the lights work in other words) The bike includes the original ignition key and the jiffy side stand. This machine has been extremely well cared for and is in exceptional condition.

BMW : R-Series 1929 bmw r 52 sidevalve 486 cc

$46,500.00

Medina, Ohio

Year 1929

Make BMW

Model R-Series

Category -

Engine -

Posted Over 1 Month

1929 BMW R52 SIDEVALVE 486 CC 63MM BORE X 78MM STROKE, DUPLEX FRAME, REDESIGNED GEARBOX, SIDE THROW KICKSTART, DIRECT GEARCHANGE, ONLY BUILT FOR TWO YEARS. VERY, VERY RARE !!! BEAUTIFUL RESTORATION. MANY, MANY OTHER BMW AVAILABLE !!! 1936 BMW R12, 1951 BMW R69 W/ SIDE CAR, 1937 R12 (UNRESTORED - NARI BIKE), 1938 BMW R71, 1961 BMW R69S W/ SIDE CAR, 1940 ZUNDAPP KS500 W/ SIDE CAR. OTHERS: ARIEL SQUARE 4, NORTON'S, BSA'S, TRIUMPH'S, NSU, HARLEY'S, INDIAN'S, HENDERSONS, ETC., ETC. OVER 45 YEARS EXPERIENCE IN RESTORATIONS, ENGINE MACHINING & ASSEMBLY, ENGINE DYNO TEST & TUNE, REPAIRING & LINE BORING/HONING OF ENGINE/TRANSMISSION CASES, DYNAMIC BALANCING OF CRANK ASSEMBLIES, COMPLETE CYLINDER HEAD REPAIR & REBUILD, CYLINDER SLEEVING, ETC. CALL WITH YOUR NEEDS. 800-700-7057 330-241-1680 PLEASE CALL FOR SHIPPING & PAYMENT OPTIONS.

1952 -Ariel- Square

$6,800.00

Columbia, Missouri

Year 1952

Make -

Model -

Category Classic Motorcycles

Engine -

Posted Over 1 Month

The frame of this 1952 Ariel Square 4 Mk is refinished but not powder coated and makes it look very authentic. The tins are all superb in that they are original but refinished beautifully and correctly. Chrome is all perfect.always garage kept,no issues

958 Ariel Square Four MKII, Original Paint, Un-restored, Square 4 Runs Great

$16,000.00

Iowa City, Iowa

Year 1958

Make -

Model -

Category Classic Motorcycles

Engine -

Posted Over 1 Month

1958 Ariel Square Four. Very nice un-restored bike with original paint. Last ridden about two months ago. Some updates were done over the years but bike is mostly stock. Bike runs well, with no smoke or unusual noises, it starts, rides, shifts and stops fine. True miles are unknown, speedometer is not working. Generator may need to be rebuilt, front tire should be replaced. Please look at the pictures and ask questions. Here is your opportunity to own a very rare, very desirable motorcycle in its factory paint. Please ask questions prior to bidding. Inspection is welcome and encouraged. Below are two videos, one of the bike starting after sitting for about two months and one running and riding, shifting through the gears.

Triumph : Other 1954 ariel square four fully rebuilt by expert runs perfectly

$24,900.00

Santa Monica, California

Year 32767

Make Triumph

Model -

Category Standard Motorcycles

Engine 1000

Posted Over 1 Month

Expertly restored by a marque expert! 1954 Ariel Square Four ’Special’ Engine Number: PL131 In 1928, engineer Edward Turner was shopping a new motorcycle design to English manufacturers. BSA turned him down, but Ariel was interested. The engine was an unusual four-cylinder. V-twins and inline fours, set both lengthwise and across the frame, had been used previously but Turner’s new design had two vertical twins sharing a common crankcase. The cylinder barrels were cast as a unit in a monobloc design. Their two crankshafts were joined by a flywheel and rotated in opposite directions. By having the two pistons of one crank at top and bottom dead center and the pistons of the second shaft at half stroke, the design was ingeniously compact and the firing order made it practically vibration free. The Ariel Square Four 4F made its debut at the 1930 Olympia Motorcycle Show featuring an overhead camshaft 500cc with a hand shift for the Burman gearbox, which was integral with the crankcase. Overhead camshafts and unit construction were well into the future for most firms, so Ariel was a real pioneer. Few knew then that the bike would become a legend of the British industry, both for its performance and dependability. The latter was underscored by the Square Four’s widespread used in the British law enforcement community. Improvements were continuous during the Square Four’s 28-year production run. In 1932, the 4F was taken out to 600cc, although the 500 remained available. The next year, a 4F 600 fitted with a supercharger lapped the famous Brooklands speed bowl at 110 miles per hour. The 4G was introduced in 1936 with a new 996cc overhead-valve engine. To accommodate the larger displacement, a new crankshaft was set in a much stronger crankcase. These years saw the British economy recovering in the run up to World War II, and Square Fours were seen on the road more often, where they were known as the “Monarch of the Multis”, referring to their multi-cylinder engines in a sea of British singles and twins. By the immediate post-World War II period, the 4G had a plunger rear end and telescopic front forks. Further refinement was added in the form of aluminum cylinder barrels when the Mark I began production in 1949. Soon after WWII, an American Air Force pilot began flying back and forth from his base in California to bases in southern England. While on one of these trips, he discovered the Ariel Square Four and was smitten. He purchased a bike to run around the country lanes while in England and then, with a little room to “spare” on the return flight, he snuck the bike on and brought it back Stateside. Enjoying the bike in the Southern California backroads was the perfect setting and soon friends and colleagues became interested in the quirky British ‘four’ in a time the American competition offered nothing but archaic pre-war designs. And so a little side business developed with frequent trips to the UK and return flights with undeclared Ariel motorcycles and an abundance of parts filling the spare room of the planes. This continued on for many years, and the gentleman in question – let’s call him Chuck – made use of his engineering background and restored and maintained many Ariels. Practically starting the Ariel Owners Club, he remains an active member to this day. Retiring in 1990, the hobby continued on and to date, he has rebuilt 107 engines for himself and clients/friends and restored many bikes from the ground up. To say he is an expert of the marque is just scratching the surface. His knowledge is encyclopedic and having restored so many engines, understands every pitfall of the unique design and precisely how to prevent engine failure. Tricks to rod bolts (a well-known weak point of the engine), rocker arms, crank bushings, valve guides and springs ensure engines with great power, superb reliability and great longevity. The bike on offer is one of Chuck’s personal favourites. It’s a bit if a bitsa, made up of great parts from various era of Square 4 from 1949 to 1958. At the core is a 1954 bike with matching numbers on engine, frame and gearbox. At the front is a 1954 front end with a ’49 fender, while out back is a ’56 fender over a Harley rear wheel! The tank is from a 1950 single cylinder Ariel . At the heart of the machine is one of Chuck’s fully rebuilt motors. Rebuilt from the crank up and featuring all of his tricks and nuances, the engine is in fine tune with strong power, having covered a mere 2500 miles since. The bike is built for the long distance haul with 70mph+ cruising speeds from the longer gearing (21 teeth at the gearbox instead of 19) and with the internal tweaks and oil cooler remains at proper running temperature whilst doing so. Brakes and all suspension parts were restored and a new correct wiring harness was installed. Meticulously maintained, the bike is offered in excellent condition throughout in the very unusual British Racing Green livery. It has been featured in numerous magazine articles including the UK’s Classic Bike. This is a great opportunity to acquire a fantastic riding Ariel Square Four built by a true aficionado, accomplished engineer and one of the world’s leading marque experts. It is ready to ride anywhere and enjoyed in the process.

Trim SUPERB