Thumpstar - TSX125cc
1) Pick your order quantity
2) Choose your assembly and warranty (Not available for UTVs and Motorcycles)
3) Pick the top 3 color colors you want and we'll do our best to get your first pick (Vehicles with no color options only have the color present in the pictures)
Any questions? Click the "Text Us!" button or give us a call
Built for riders who want serious performance without the bulk of a full-size dirt bike, the Thumpstar TSX125cc is a race-ready machine that punches far above its weight. Powered by a YX 125cc 4-stroke engine, paired with a Mikuni VM22 26mm carburetor, and pushing power through a manual 4-speed transmission, the TSX is aggressive, responsive, and tuned for the trail.
The Pipe Bomb DW2 exhaust system with a 38mm header bomb delivers a deep, punchy tone while enhancing power output across the rev range. A PSC 6 Bolt sprocket and 428 HD chain add durability where it matters most.
This model comes equipped with VS1 inverted forks (770mm, 45/48mm) in the front and a VS1 linkage U shock (adjustable 350mm) in the rear for enhanced control and absorption over rough terrain. Whether you’re racing or trail riding, the 7075 alloy rims and HSK disc brakes give you the bite and control needed to stop on a dime.
key features
- YX 125cc 4-Stroke Engine
- Manual 4-Speed Transmission (N1234)
- Mikuni VM22 26mm Carburetor
- Pipe Bomb DW2 Exhaust with Header Bomb
- VS1 Suspension System (Front & Rear with Linkage)
- Dual Piston Front Disc Brakes for Maximum Control
- 7075 Aluminum Rims with Rear Rim Lock
- Aggressive 33” Seat Height and 55mph Top Speed
- Ideal for Adult Riders Looking for Lightweight Power
| Thumpstar TSX125cc Specifications | |
|---|---|
| Engine | YX | 4-Stroke |
| CC Rating | 125cc |
| Gearbox | Manual | 4-Speed (N1234) |
| Starter | Kick |
| Carburetor | Mikuni VM22 26mm |
| Exhaust | Pipe Bomb DW2 | 38mm | Header Bomb |
| Final Drive | PSC 6 Bolt Sprocket | 428 HD Chain |
| Top Speed | 90kph / 55mph (depending on gearing) |
| Front Suspension | VS1 Inverted Forks | Length 770mm | 45/48mm |
| Rear Suspension | VS1 Linkage U Shock | Adjustable 350mm (+10mm) |
| Front Brakes | 220mm Disc | HSK Dual Piston |
| Rear Brakes | 190mm Disc | HSK Single Piston |
| Front Wheel & Tire | 7075 Alloy Rim | 70/100-14 |
| Rear Wheel & Tire | 7075 Alloy Rim w/ Rim Lock | 80/100-12 |
| Wheelbase | 1260mm | 50" |
| Seat Height | 830mm | 33" |
| Weight (Net / Gross) | 80 / 90kg | 176 / 198 lbs |
| Tank Capacity | 3.4 Litres | 0.9 Gallon |
| Packing Size | 1420 x 430 x 640mm | 0.40m³ |