Positioned in Beta's trial motorcycle lineup, the 2008 Beta REV 50 utilizes a 49.9 cc (3 cu in) single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 39.5 x 40.8 mm (1.6 x 1.6 inches) with a 14.5:1 compression ratio.
On the scales, the REV 50 measures 60 kg (132 lbs) dry. Rider ergonomics and chassis geometry center around a 620 mm (24.4 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,210 mm (47.6 in) wheelbase engineered for quick, flickable steering geometry. The 2.5-liter (0.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Beta archive, this model family spans 2 indexed model years from 2004 to 2008, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
620 mm (24.4 in)
Engine
Displacement49.9 ccm (3.04 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression14.5:1
Bore x Stroke39.5 x 40.8 mm (1.6 x 1.6 inches)
Fuel SystemCarburettor. Dell´ orto PHBG 21
IgnitionAET
Lubricationmix with fuel 1,5 % (synthetic oil)
Transmission
Gearbox6-speed
ClutchWet multi-disc clutch
Chassis
Frame TypeSteel
Front SuspensionHydraulic fork with ø38 mm shaft
Rear SuspensionMonoshock with adjustable spring preload
Wheelbase1210 mm (47.6 inches)
Ground Clearance300 mm (11.8 inches)
Wheels & Brakes
Front Tyre2.50-19
Rear Tyre3.5-17
Front BrakesSingle disc. 2-opposed pistons
Front Brake Ø175 mm (6.9 inches)
Rear BrakesSingle disc. 2-opposed pistons
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
Dry Weight60.0 kg (132.3 pounds)
Seat Height620 mm (24.4 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
