Engineered by Beta for the enduro - offroad motorcycle segment, the 2007 Beta RR 400 4-Stroke utilizes a 398 cc (24.3 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 89.0 x 64.0 mm (3.5 x 2.5 inches) with a 11.0:1 compression ratio.
On the scales, the RR 400 4-Stroke measures 117.5 kg (259 lbs) dry. Rider ergonomics and chassis geometry center around a 940 mm (37 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,500 mm (59.1 in) wheelbase engineered for balanced agility and highway composure. The 8.5-liter (2.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
940 mm (37 in)
Engine
Displacement398.0 ccm (24.29 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression11.0:1
Bore x Stroke89.0 x 64.0 mm (3.5 x 2.5 inches)
Fuel SystemCarburettor. Keihin FCR-MX 39
IgnitionDC-CDI without trembler with variable ignition ming, Kokusan type
Lubrication2 oil pumps
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Clutchwet multi-disc clutch
Chassis
Frame TypeMolybdenum steel with double cradle split above the exhaust port
Front SuspensionHydraulic USD fork with ø45 mm shaft
Front Travel45 mm (1.8 inches)
Rear SuspensionMonoshock with progressive compound lever
Wheelbase1500 mm (59.1 inches)
Ground Clearance320 mm (12.6 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre140/80-18
Front BrakesSingle disc. Floating disc ø255 mm and double-piston floating caliper
Front Brake Ø255 mm (10.0 inches)
Rear BrakesSingle disc. Disc ø240 mm and single-piston floating caliper
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight117.5 kg (259.0 pounds)
Seat Height940 mm (37.0 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.
