Refresh your 125cc two-stroke with this comprehensive top-end rebuild kit engineered specifically for Austrian motocross and enduro bikes. This kit features a high-performance cast race piston matched to a Size B standard bore tolerance (53.95mm) along with a complete top-end gasket set to ensure correct squish, reliable sealing, and crisp throttle response. Built from premium gravity-cast high-silicone aluminum alloy with Molybdenum Disulphide skirt coatings, the piston minimizes friction and wear for a fast break-in and extended service life. Ideal for routine overhauls across model years 2007 through 2016.
Specs & Details
- Manufacturer Part Number: 174-24243B-2
- Brand Number: VTK24243B-2
- Component Type: Top End Rebuild Kit (Includes piston, rings, wrist pin, circlips, and top-end gaskets)
- Size / Bore: Size B / Standard (53.95 mm)
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Husqvarna | TC 125 | Two-Stroke Motocross | 2014–2015 |
| Husqvarna | TE 125 | Two-Stroke Enduro | 2014–2016 |
| KTM | 125 EXC | Two-Stroke Enduro | 2007–2009 |
| KTM | 125 SX | Two-Stroke Motocross | 2007–2015 |
TSO Garage Note
The ultimate all-in-one solution for doing a proper top-end refresh on 125cc KTM, Husqvarna, and Husaberg platforms. Pairing a matched Size B cast race piston with a comprehensive gasket set ensures proper squish, zero leaks, and sharp power delivery right out of the gate.
