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Motocross Bikes

2017TM Racing MX 125

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The 2017 TM Racing MX 125 is a lightweight motocross bike designed for amateur and intermediate riders developing their skills. Known for its agile handling and responsive performance, it features a reliable 125cc engine paired with quality KYB suspension and hydraulic clutch control. The aluminum perimeter frame and disc brakes deliver the balance needed for competitive off-road riding.

Capacity
123.5 ccm
Engine
Single, two-stroke
Gearbox
5-speed
Dry weight
Not on record
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Seat height
918 mm
Power
15.0 HP (11.0 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2017 TM Racing MX 125

vs the 2016
Spec20162017
Fuel capacity 8.20 litres (2.17 US gallons) 8.70 litres (2.30 US gallons)
Front suspension Marzocchi USD 50 mm (optional Kayaba USD 48 mm) KYB USD
Front brakes Single disc. Wave disk with Nissin pump and Brembo caliper Single disc. Wave disc.
Rear brakes Single disc. Wave disk with Nissin pump and caliper Single disc. Wave disc.
Other years 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 53Agility 94Comfort 30Off-road 97Touring 10Road manners 15
Off-road & trail97%
Cornering80%
City riding5%
Daily riding5%
Touring5%
Two-up0%
Track90%
Best for
Built exclusively for motocross racing and rough terrain riding rather than any form of road use.
Built for
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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 918mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2017 TM Racing MX 125, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine
Capacity
123.5 ccm
Power
15.0 HP (11.0 kW)
Engine type
Single, two-stroke
Bore x stroke
54.0 x 54.5 mm
Compression
16.7:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
Kokusan CDI Electronic with variable advance with two selectable maps through handlebar switch
Lubrication system
3,5% oil mix
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Clutch
Multiple-disk in oil bath with hydraulic control
Dimensions & weight
Wheelbase
1280 mm
Overall length
2030 mm
Overall width
1250 mm
Overall height
1300 mm
Seat height
918 mm
Fuel capacity
8.70 litres
Ground clearance
305 mm
Dry weight
Not on record - add it
Chassis & suspension
Frame
Perimetral aluminium section
Front suspension
KYB USD
Rear suspension
TM Racing
Brakes & wheels
Front brakes
Single disc. Wave disc.
Front brakes diameter
270 mm
Rear brakes
Single disc. Wave disc.
Rear brakes diameter
245 mm
Front tyre
90/90-X
Rear tyre
100/90-X19
Other
Color options
Blue/white
Comments
Italian made bike.

Specs last verified against published sources: .

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 200520092012201620172019
Capacity 124 cc 124 cc 124 cc 124 cc 124 cc 124 cc
Seat height 918 mm 918 mm 918 mm 918 mm 918 mm 918 mm
Fuel capacity 8 L 8.7 L 8.7 L 8.2 L 8.7 L 9.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2017 TM Racing MX 125 motorcycle is an impressive machine that delivers exceptional performance on the track. With a powerful 125cc engine, this bike has the speed and agility to tackle any terrain with ease. The lightweight frame and responsive handling make it a top choice for riders who want to push their limits and dominate the competition. The quality construction and advanced technology in the TM Racing MX 125 make it a standout option for motocross enthusiasts.

For those seeking a top-tier motocross experience, the 2017 TM Racing MX 125 is a must-have. Its precision engineering and high-performance capabilities set it apart from the competition. Whether you're a seasoned pro or a beginner looking to take your skills to the next level, this bike offers the ultimate combination of power, control, and reliability. Whether you're racing on the track or hitting the trails, the 2017 TM Racing MX 125 is a versatile and high-performing machine that won't disappoint.

Own one? Add it to My Garage and write an owner review with an Owner badge.

Common questions

What is the engine size of the TM Racing MX 125?

The 2017 TM Racing MX 125 has a Capacity of 123.5 ccm (7.54 cubic inches).

What engine power does the TM Racing MX 125 have?

The 2017 TM Racing MX 125 has a Power of 15.0 HP (11.0 kW).

How many gears does the TM Racing MX 125 have?

The 2017 TM Racing MX 125 has a Gearbox of 5-speed.

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