TM Racing MX 125 - 2005 Specifications and Reviews
The 2005 TM Racing MX 125 is a competitive 125cc motocross bike designed for intermediate to advanced riders seeking race-oriented performance. Its liquid-cooled two-stroke engine with high 16.7:1 compression and electronic ignition delivers sharp power delivery ideal for technical track conditions. Known for responsive handling and reliable five-speed transmission, it excels in amateur racing and cross-country competition.
General information | |
| Category | Cross / motocross |
| Year | 2005 |
| Model | TM racing MX 125 |
Engine and Transmission Specifications | |
| Clutch | Multiple-disk in oil-bath with hydraulic control |
| Transmission typefinal drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Starter | Kick |
| Ignition | Koukusan CDI electronic w/ variable advance |
| Fuel system | Carburettor. Keihin PWM 38 mm diameter |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Compression | 16.7:1 |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 123.50 ccm (7.54 cubic inches) |
| | |
Physical measures and capacities | |
| Rear brakes diameter | 245 mm (9.6 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 270 mm (10.6 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 100/90-19 |
| Front tyre dimensions | 90/90-21 |
| Rear suspension | Ohlins |
| Front suspension | Kayba/Paioli USD 48 mm |
| Frame type | Cr-Mo steel. Perimetral oval section. |
Speed and acceleration | |
| Fuel capacity | 8.00 litres (2.11 gallons) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track90%
City5%
Cornering80%
Daily Riding5%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a purebred competition motocross machine best suited to experienced off-road riders who already know how to manage a peaky two-stroke power delivery. |
| Purpose | Built exclusively for motocross racing and rough terrain riding rather than any form of road use. |
| Rider Fit | Its light, slim, kick-start-only chassis demands good physical fitness and confidence standing on the pegs for extended moto sessions. |
| Character | A sharp, aggressive, race-focused two-stroke with premium Italian components that rewards aggressive, skilled inputs. |
| Not Ideal For | This is not the right bike for commuting, touring, carrying a passenger, or anyone seeking a comfortable, road-legal, beginner-friendly ride. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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