Enduro Bikes
2021Yamaha TT-R125
42 fields on record
The 2021 Yamaha TT-R125 is a trail bike for younger and smaller riders moving up from minibikes. Its air-cooled 124cc four-stroke single makes 9.9 Nm through a five-speed gearbox and chain. A 775 mm seat, 88 kg wet weight and USFS-approved spark arrestor suit family trail riding.
- Capacity
- 124.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 84.0 kg
- Seat height
- 775 mm
- Power
- 15.0 HP (11.0 kW)
Other years
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a light trail and recreational off-road bike for casual dirt riding rather than speed or long distances.
- Built for
- A simple, forgiving, low-stress little trail bike that rewards smooth, easygoing riding over aggression.
- Not ideal for
- Not suitable for highway travel, two-up touring, or riders seeking strong power and high-speed performance.
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 usEngine
- Capacity
- 124.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Torque
- 9.9 Nm (1.0 kgf-m)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1786 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.0 mm
- Compression
- 10.0:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI
- Valves per cylinder
- 2
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multidisc
Dimensions & weight
- Wheelbase
- 1250 mm
- Overall length
- 1844 mm
- Overall width
- 785 mm
- Overall height
- 1059 mm
- Seat height
- 775 mm
- Dry weight
- 84.0 kg
- Wet weight
- 88.0 kg
- Fuel capacity
- 6.10 litres
- Ground clearance
- 265 mm
- Oil capacity
- 1.20 litres
Chassis & suspension
- Frame
- Diamond
- Front suspension
- Telescopic fork
- Rear suspension
- Single shock
- Front wheel travel
- 180 mm
- Rear wheel travel
- 160 mm
- Rake (fork angle)
- 28.0°
- Trail
- 107 mm
Brakes & wheels
- Front brakes
- Expanding brake (drum brake)
- Front brakes diameter
- 110 mm
- Rear brakes
- Expanding brake (drum brake)
- Rear brakes diameter
- 110 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
Other
- Color options
- Team Yamaha Blue/White
- Comments
- Exhaust system with USFS-approved spark arrestor.
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 | 2002 | 2008 | 2014 | 2020 | 2021 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc |
| Dry weight | 74 kg | 84 kg | 84 kg | 84 kg | 84 kg | 84 kg |
| Seat height | 775 mm | 775 mm | 775 mm | 775 mm | 775 mm | 805 mm |
| Fuel capacity | 6.6 L | 6.6 L | 6.1 L | 6.1 L | 6.1 L | 6 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Yamaha TT-R125?
The 2021 Yamaha TT-R125 has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the Yamaha TT-R125 have?
The 2021 Yamaha TT-R125 has a Power of 15.0 HP (11.0 kW).
How many gears does the Yamaha TT-R125 have?
The 2021 Yamaha TT-R125 has a Gearbox of 5-speed.
What is the torque of the Yamaha TT-R125?
The 2021 Yamaha TT-R125 has a Torque of 9.9 Nm (1.0 kgf-m or 7.3 ft.lbs).
How much does the Yamaha TT-R125 weigh?
The 2021 Yamaha TT-R125 has a Dry weight of 84.0 kg (185.2 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.