Positioned in Beta's trial motorcycle lineup, the 2007 Beta REV 3 - 125 features a 124 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke configuration. Internal engine geometry specifies a bore and stroke of 54.0 x 54.0 mm (2.1 x 2.1 inches) with a 11.8:1 compression ratio.
On the scales, the REV 3 - 125 measures 72 kg (159 lbs) dry. Rider ergonomics and chassis geometry center around a 660 mm (26 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,310 mm (51.6 in) wheelbase engineered for quick, flickable steering geometry. The 3.2-liter (0.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
660 mm (26 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression11.8:1
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor. Mikuni VM26/208
IgnitionElectronic AET 12V - 85W
Lubricationmix with fuel 1,5 % (synthetic oil)
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc clutch with cush-drive rubber
Chassis
Frame TypeDouble wave aluminium beam
Front SuspensionHydraulic fork with ø38 mm shaft
Front Travel38 mm (1.5 inches)
Rear SuspensionHydraulic monoshock
Wheelbase1310 mm (51.6 inches)
Ground Clearance310 mm (12.2 inches)
Wheels & Brakes
Front Tyre2.75-21
Rear Tyre4.00-18
Front BrakesSingle disc. disc ø185 mm with 4 piston caliper
Front Brake Ø185 mm (7.3 inches)
Rear BrakesSingle disc. disc ø165 mm with 2 piston caliper
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
Dry Weight72.0 kg (158.7 pounds)
Seat Height660 mm (26.0 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.
