Yamaha TT-R125 Top Speed, Specs and Versions Explained
Last updated on October 19th, 2026 at 06:33 am
Yamaha does not publish a top speed for the TT-R125. Owners commonly report about 45 to 55 mph depending on version, gearing, rider weight and terrain, so treat any single number as an estimate. The 2024 TT-R125LE is a 124 cc air-cooled four-stroke with a 5-speed and electric start, listed at $3,599 plus a $315 destination charge.
Yamaha TT-R125 versions
The TT-R125 family has three versions. Yamaha’s current page covers only the LE, so older versions come from reference listings and may differ by year.
| Version | Wheels (front/rear) | Seat height | Starting | Front brake |
|---|---|---|---|---|
| TT-R125 (standard) | 17 in / 14 in | 30.5 in | Kick start | Not confirmed in our sources |
| TT-R125L (big wheel) | 19 in / 16 in | 31.7 in | Kick start | Disc |
| TT-R125E (electric start, 2003 on) | Same wheels as the standard bike | Not stated | Electric | Sources conflict on drum vs disc |
| TT-R125LE (big wheel, electric) | 19 in / 16 in | 31.7 in | Electric (kick start backup on many models) | 220 mm hydraulic disc |
Find your version: seat height and features
Seat heights come from Yamaha (31.7 in for the LE) and the Wikipedia entry (30.5 in standard, 31.7 in L). The tool only subtracts your inseam; it cannot judge skill or size.
2024 Yamaha TT-R125LE specs
| Specification | Detail |
|---|---|
| Engine | 124 cc air-cooled SOHC four-stroke; Yamaha lists 4 valves, earlier-year sources list 2 |
| Bore x stroke | 54.0 x 54.0 mm |
| Compression ratio | 10.0:1 |
| Fuel and ignition | Mikuni VM20 carburetor, CDI |
| Transmission | Constant-mesh 5-speed, multiplate wet clutch, chain final drive |
| Suspension travel (front / rear) | 7.1 in / 6.6 in |
| Brakes | 220 mm hydraulic front disc, 110 mm rear drum |
| Tires | 70/100-19 front, 90/100-16 rear |
| Wheelbase / seat height / ground clearance | 50.0 in / 31.7 in / 11.6 in |
| Wet weight / fuel capacity | 198 lb / 1.6 gal |
| Price | $3,599 MSRP, $315 destination (excludes tax, title and dealer prep) |
One number does not agree across sources: Yamaha’s 2024 page says 4 valves, while the 2012-era listings and the Wikipedia entry say 2. Check your own manual before ordering valve parts.
How the LE changed from 2004 to 2024
| Year | Seat height | Weight | Fuel tank | MSRP |
|---|---|---|---|---|
| 2004 | 31.7 in | 179 lb dry (no wet figure listed) | 1.7 gal | $2,699 |
| 2012 | 31.7 in | 198 lb wet | 1.6 gal | $3,190 |
| 2024 | 31.7 in | 198 lb wet | 1.6 gal | $3,599 plus $315 destination |
The seat, tires, brake and travel numbers match across all three years, so a used LE from the last two decades is mechanically close to a new one. Prices listed are original MSRPs, not used values.
How fast is the Yamaha TT-R125?
There is no official number. Yamaha lists no top speed, horsepower or torque, and we could not find the gear ratios or stock sprocket tooth counts in a free Yamaha source. Without them, a speed-by-gear calculation would be a guess, so we do not offer one.
Owner and review figures cluster around 45 to 55 mph on flat ground. Some owners report mid-50s or higher on modified bikes, with no stated test method. Rider weight, wind, altitude and carburetor tune all move the number.
Is the TT-R125 a good first bike?
Yamaha calls the LE a bike for “bigger kids to adults” with a seat under 32 inches, and a 2012 listing of Yamaha text adds that adult supervision and protective gear are a must for minors. Yamaha sets no minimum age or size.
- The 5-speed manual with a wet clutch teaches real shifting and clutch control.
- The standard TT-R125 has the lowest seat (30.5 in); the LE adds electric start and a front disc.
- The air-cooled carbureted engine is simple, but a clean carburetor and air filter matter most when it feels slow.
Yamaha’s page tells riders to wear a helmet and eye protection, read the owner’s manual and never ride after drinking, and points to Motorcycle Safety Foundation courses at 1-800-446-9227. See also our riding gear checklist. Yamaha markets it as an off-road bike; the page we read makes no street-legal claim, so check state rules for any public land.
Can you make it faster?
- Sprockets: a bigger front or smaller rear sprocket raises top speed but cuts acceleration and climbing. One competitor page gets this backwards.
- Fueling: clean the carburetor and air filter before changing anything else.
- Weight and tires: lighter riders and terrain-appropriate tires help more than speed parts.
Keep changes inside your skill level. Compare how gearing works in our guides to gear ratios and the larger Kawasaki KX250 and Honda CRF250R.
FAQ
Yamaha does not publish one. Owners report about 45 to 55 mph depending on version, gearing, rider weight and terrain.
The standard bike has 17 and 14-inch wheels and a 30.5 in seat. The L has 19 and 16-inch wheels and a 31.7 in seat. The LE adds electric start to the L.
Yamaha lists the 2024 model at $3,599 MSRP plus a $315 destination charge, excluding tax, title and dealer prep.
Yamaha lists 198 pounds wet for the 2024 TT-R125LE.
Yamaha does not publish horsepower or torque for the TT-R125.
More trail riding: dirt bike trails in Florida and Pennsylvania.
I'm Suryashankar Dasgupta, the founder of Off-Road Handbook. I've been off-roading for years in the USA, including California and Texas, and have ridden mountain and desert terrain abroad. I've also driven a Jeep Compass for more than seven years, so I know the day-to-day side of Jeep ownership first-hand, from the Uconnect screen to the warning lights. Every guide here is researched from manufacturer owner's manuals, NHTSA recall and service-bulletin records and other trusted sources, checked against them before it is published, and corrected when we find a mistake. You can read how we work in our editorial policy: https://offroadhandbook.com/editorial-policy/
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