2012 TM Racing SMR 125 Technical Analysis & Specification Breakdown
Positioned in TM Racing's super motard motorcycle lineup, the 2012 TM Racing SMR 125 pairs a 123.5 cc (7.5 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 7.4 HP (5.4 kW), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 59.9 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
The 8.7-liter (2.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's TM Racing archive, this model family spans 8 indexed model years from 2005 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
59.9 HP/L
Engine
Displacement123.5 ccm (7.54 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsV-Force Reed intake valve
Power7.4 HP (5.4 kW))
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor. Keihin PWK 38
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionKokusan CDI Electronic with variable advance with two selectable maps
Lubrication3.5% mixture
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiple-disk in oil bath with hydraulic control
DrivelinePrimary drive: Straight – tooth gear.
Chassis
Frame TypePerimetral aluminium
Front SuspensionMarzocchi USD 50 mm
Rear SuspensionSachs Boge (optional Ohlins TM )
Wheels & Brakes
Front Tyre110/70-ZR17
Rear Tyre150/70-ZR17
Front BrakesSingle disc. Brenbo radial pump and caliper
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc. Wave disk. Nissin pump and caliper
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
