14 August. Friday 2026
Beta REV-3 125 - 2008 Specifications and Reviews
The 2008 Beta REV-3 125 is a lightweight trial motorcycle designed for riders seeking technical off-road performance and maneuverability. Its 124cc liquid-cooled single-cylinder engine and featherweight 70kg frame make it ideal for beginners and intermediate trial competitors navigating complex terrain. Known for precise handling and low-speed control, it remains popular for learners developing core trial skills.
General information | |
| Category | Trial |
| Year | 2008 |
| Model | Beta REV-3 125 |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc clutch with cush-drive rubber |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | mix with fuel 1,5 % (synthetic oil) |
| Ignition | Electronic AET 12V - 85W |
| Fuel system | Carburettor. Keihin PWK 28mm |
| Bore x stroke | 54.0 x 54.0 mm (2.1 x 2.1 inches) |
| Compression | 14.0:1 |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,310 mm (51.6 inches) |
| Ground clearance | 310 mm (12.2 inches) |
| Overall width | 850 mm (33.5 inches) |
| Overall length | 1,990 mm (78.3 inches) |
| Overall height | 1,120 mm (44.1 inches) |
| Seat height | 660 mm (26.0 inches) If adjustable, lowest setting. |
| Dry weight | 70.0 kg (154.3 pounds) |
Beta REV-3 125 dimensions and frame | |
| Rear brakes diameter | 165 mm (6.5 inches) |
| Rear brakes | Single disc. 2 piston caliper |
| Front brakes diameter | 185 mm (7.3 inches) |
| Front brakes | Single disc. 4 piston caliper |
| Rear tyre dimensions | 4-18 |
| Front tyre dimensions | 2.75-21 |
| Rear suspension | Hydraulic monoshock |
| Front suspension | Hydraulic fork with 38 mm shaft |
| Frame type | Double wave aluminium beam |
Speed and acceleration | |
| Modifications compared to previous model | 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 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 smooth |
| Reserve fuel capacity | 0.80 litres (0.21 gallons) |
| Fuel capacity | 3.00 litres (0.79 gallons) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track5%
City10%
Cornering60%
Daily Riding5%
Touring3%
Passenger0%
Rider Profile
| Best For | This is a specialist trial machine best suited to riders with dedicated off-road or trial competition experience, not general road riders. |
| Purpose | Built purely for technical trial competition, obstacle negotiation, and ultra-low-speed balance and control rather than any kind of speed or distance riding. |
| Rider Fit | Its extremely light dry weight and tall, narrow trial-focused ergonomics demand active standing, balance, and leg strength rather than seated comfort. |
| Character | A featherweight, high-revving 2-stroke trial tool with razor-sharp low-speed responsiveness and no concession to comfort or cruising ability. |
| Not Ideal For | Not suitable for riders wanting highway speed, passenger carrying, touring range, or everyday street commuting. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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