2008
Beta REV-3 125 - Specifications & Review

Article Complete Info
| Articleid | 784515 |
|---|---|
| Category | Trial |
| Make | Beta |
| Model | REV-3 125 |
| Year | 2008 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Double wave aluminium beam |
|---|---|
| Frontbrakes | Single disc. 4 piston caliper |
| Frontbrakesdiameter | 185 mm (7.3 inches) |
| Frontsuspension | Hydraulic fork with ø38 mm shaft |
| Fronttyre | 2.75-21 |
| Rearbrakes | Single disc. 2 piston caliper |
| Rearbrakesdiameter | 165 mm (6.5 inches) |
| Rearsuspension | Hydraulic monoshock |
| Reartyre | 4-18 |
Engine & Transmission
| Borexstroke | 54.0 x 54.0 mm (2.1 x 2.1 inches) |
|---|---|
| Clutch | Wet multi-disc clutch with cush-drive rubber |
| Compression | 14.0:1 |
| Coolingsystem | Liquid |
| Displacement | 124.00 ccm (7.57 cubic inches) |
| Enginedetails | Single cylinder, two-stroke |
| Fuelsystem | Carburettor. Keihin PWK ø 28mm |
| Gearbox | 6-speed |
| Ignition | Electronic AET 12V - 85W |
| Lubricationsystem | Mix with fuel 1,5 % (synthetic oil) |
Other Specifications
| Modificationscomparedtopreviousmodel | Technical Modifications 2008 New fork settings: developed with the younger rider in mind, the result is a more reactive and lively response so as to make moves at a standstill easier. New shockabsorber settings. More stable performance over time, combined with greater reliability. New Keihin PWK ø 28 mm carburettor. New crankcase. New design for cylinder porting. Shorter clutch hose: less weight combined with a more precise and direct action. New main bearings: these ensure greater smoothness and reliability. Euro3 homologation. New colour-scheme: a brand-new mix of white and fluorescent red. |
|---|
Physical Measures & Capacities
| Dryweight | 70.0 kg (154.3 pounds) |
|---|---|
| Fuelcapacity | 3.00 litres (0.79 gallons) |
| Groundclearance | 310 mm (12.2 inches) |
| Overallheight | 1,120 mm (44.1 inches) |
| Overalllength | 1,990 mm (78.3 inches) |
| Overallwidth | 850 mm (33.5 inches) |
| Reservefuelcapacity | 0.80 litres (0.21 gallons) |
| Seatheight | 660 mm (26.0 inches) If adjustable, lowest setting. |
About Beta
Country of Origin:
Italy
Founder:
Giuseppe Bianchi & Arrigo Tosi (Betamotor S.p.A.)
Best Known For:
Trials and enduro dominance; RR/RS enduros and Evo trials line
Company History
Betamotor began in 1905 building bicycles in Florence and evolved into one of the world’s premier off-road motorcycle makers. The company’s DNA is balance and traction—first in observed trials, where featherweight control and throttle finesse matter, and later in enduro, where day-long reliability meets special-stage speed. Beta’s modern RR/RS enduros are renowned for chassis that communicate clearly, engines with tractable midrange, and suspension valving that works out of the crate for real riders, not just pros. The Evo trials line continues to win at the highest levels, feeding lessons about weight distribution and clutch feel back into the enduro range. Unlike some rivals, Beta embraces rider-scale adjustability—map switches, power valve tweaks, and ergonomic options that let owners tailor bikes without a race truck. Historically, Beta personifies Italian craftsmanship aimed at dirt: elegant castings, tidy looms, and field-friendly service. Club racers and trail riders praise how Betas turn fatigue into flow; the bikes reward precise inputs yet forgive mistakes. In a category where specs are loud, Beta’s quiet confidence—how the bike feels between trees—has built a fiercely loyal following.
