Yamaha YZ 125 - 2007 Specifications and Reviews
The 2007 Yamaha YZ 125 is a lightweight motocross bike designed for amateur and intermediate riders entering competitive racing. Its liquid-cooled single-cylinder engine delivers nimble handling and manageable power, making it ideal for developing riding skills on the track. The bike is best known for its reliability and affordability in the 125cc motocross class.
General information | |
| Category | Cross / motocross |
| Year | 2007 |
| Model | Yamaha YZ 125 |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Ignition | CDI |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Compression | 8.6:1 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,443 mm (56.8 inches) |
| Ground clearance | 386 mm (15.2 inches) |
| Overall width | 828 mm (32.6 inches) |
| Overall length | 2,136 mm (84.1 inches) |
| Overall height | 1,316 mm (51.8 inches) |
| Seat height | 998 mm (39.3 inches) If adjustable, lowest setting. |
| Dry weight | 86.2 kg (190.0 pounds) |
Yamaha YZ 125 dimensions and frame | |
| Rear brakes diameter | 245 mm (9.6 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 250 mm (9.8 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 100/90-M19 |
| Front tyre dimensions | 80/80-M21 |
| Rear suspension | Swingarm (link, suspension), coil spring/gas-oil damper, 12.4´ |
| Front suspension | Telescopic Fork, coil spring/oil damper, 11.8´ |
Speed and acceleration | |
| Fuel capacity | 7.94 litres (2.10 gallons) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track85%
City10%
Cornering90%
Daily Riding10%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a competition-focused motocross machine best suited to intermediate and expert off-road riders who understand two-stroke power delivery and clutch management. |
| Purpose | Built purely for motocross track racing and aggressive off-road riding, not for general transportation. |
| Rider Fit | Its light dry weight and tall seat height reward an active, standing riding style but demand good fitness, strength, and leg length to control on rough terrain. |
| Character | A high-strung, peaky, and razor-sharp machine that thrives on revs and rewards precise throttle and clutch control with explosive acceleration out of corners. |
| Not Ideal For | This bike is not for beginners, commuters, passengers, or anyone seeking comfort, storage, or road-legal touring capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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