Enduro Bikes

2008Beta RR 4T 450

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The 2008 Beta RR 4T 450 is a liquid-cooled four-stroke enduro bike designed for serious off-road enthusiasts and competition riders. Its 448cc single-cylinder engine delivers strong mid-range power ideal for technical trail riding and cross-country racing. Known for reliable performance and nimble handling, it excels in demanding terrain where precision and endurance are paramount.

Capacity: 448.0 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: 117.5 kg
Seat height: 940 mm
Power: Not on record
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Other years 2008 2009 2010

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail97%

Cornering70%

City riding15%

Daily riding20%

Touring15%

Two-up5%

Track25%

Best for: Built for serious enduro riding, trail competition, and technical off-road terrain rather than road use.
Built for: A featherweight, high-revving thumper with race-bred suspension and chassis that rewards an aggressive, physically engaged riding style.
Not ideal for: Not a good fit for new riders, commuters, passengers, or anyone wanting a comfortable long-distance road machine.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 940mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2008 Beta RR 4T 450, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 448.0 ccm
Engine type: Single, four-stroke
Bore x stroke: 89.0 x 72.0 mm
Compression: 11.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: DC-CDI without trembler with variable ignition timing, Kokusan type.
Lubrication system: 2 oil pumps
Power: Not on record - add it
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: wet multi-disc clutch

Dimensions & weight

Wheelbase: 1500 mm
Overall length: 2270 mm
Overall width: 813 mm
Overall height: 1255 mm
Seat height: 940 mm
Dry weight: 117.5 kg
Fuel capacity: 8.50 litres
Ground clearance: 320 mm
Reserve fuel capacity: 1.00 litres

Chassis & suspension

Frame: Molybdenum steel with double cradle split above the exhaust port
Front suspension: Hydraulic USD fork with 45 mm shaft
Rear suspension: Monoshock with progressive compound lever

Brakes & wheels

Front brakes: Single disc. double-piston floating caliper
Front brakes diameter: 255 mm
Rear brakes: Single disc. single-piston floating caliper
Rear brakes diameter: 240 mm
Front tyre: 90/90-21
Rear tyre: 140/80-18

Other

Modifications compared to previous model: Technical Modifications 2008 New design for headlamp support and front light assembly: more compact, with a more modern and aggressive shape. Anti-scratch polycarbonate lens. New digital instruments with smaller dimensions. New way of attaching the plastics at the rear end: a more practical system which improves accessibility and speeds up maintenance operations. Optimized and rationalized frame in the front area with new Domex 420 plates for a better rigidity and a loss of weight. New hydraulic ad

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.