14 August. Friday 2026
Beta Alp 125 - 2012 Specifications and Reviews
The 2012 Beta Alp 125 is a lightweight enduro bike ideally suited for novice and intermediate off-road riders seeking an affordable entry into dirt biking. Powered by a simple air-cooled four-stroke single-cylinder engine, it excels in technical terrain and tight trails thanks to its nimble handling and manageable power delivery. Known for reliability and low maintenance, it remains popular for training and weekend adventure riding.
General information | |
| Category | Enduro / offroad |
| Year | 2012 |
| Model | Beta Alp 125 |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc |
| Transmission type,final drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Lubrication system | Forced with pump |
| Fuel control | SOHC |
| Fuel system | Carburettor. Mikuni BST 31 42AD |
| Bore x stroke | 66.0 x 58.2 mm (2.6 x 2.3 inches) |
| Compression | 9.4:1 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 245 mm (9.6 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 120/80-18 |
| Front tyre dimensions | 90/90-21 |
| Rear suspension travel | 180 mm (7.1 inches) |
| Rear suspension | Monoshock with adjustable spring preload |
| Front suspension travel | 170 mm (6.7 inches) |
| Front suspension | Hydraulic fork, ø38 mm |
| | |
Physical measures and capacities | |
| Reserve fuel capacity | 1.50 litres (0.40 gallons) |
| Fuel capacity | 6.80 litres (1.80 gallons) |
| Wheelbase | 1,370 mm (53.9 inches) |
| Ground clearance | 300 mm (11.8 inches) |
| Overall width | 820 mm (32.3 inches) |
| Overall length | 2,085 mm (82.1 inches) |
| Overall height | 1,170 mm (46.1 inches) |
| Seat height | 830 mm (32.7 inches) If adjustable, lowest setting. |
| Dry weight | 107.5 kg (237.0 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | White |
| Starter | Electric & kick |
Performance Profile & Rider Fit
Best For
Track5%
City25%
Cornering40%
Daily Riding15%
Touring10%
Passenger5%
Rider Profile
| Best For | Best suited to riders with some off-road or trials background, as the bike's light weight and tall stance reward balance and technical skill more than raw experience. |
| Purpose | Built specifically for technical trials riding and obstacle navigation rather than speed, distance, or road use. |
| Rider Fit | Its featherweight 101 kg dry mass and slim profile make it very easy to muscle around and hold up, though the tall 850 mm seat height demands decent leg reach. |
| Character | A pure, minimalist trials tool that thrives on razor-sharp low-speed agility, tractable low-end power delivery, and total rider control over the bike's balance. |
| Not Ideal For | Not for riders wanting highway speed, passenger carrying, long-distance comfort, or any kind of touring capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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