Give your high-output Austrian two-stroke a rugged, reliable foundation with the ProX Connecting Rod Kit (Part No. 03.6323). Manufactured in Japan from ultra-tough, double-forged alloy steels, this kit is engineered to withstand the intense thermal and mechanical loads of high-performance 250cc and 300cc engines.
Each rod is shot-peened and barrel-finished to completely eliminate surface micro-imperfections, relieve residual stress, and optimize structural grain flow for maximum fatigue resistance. Strategically placed lubrication slots ensure optimal oil feed and cooling to the big-end bearing, keeping your rotating assembly dependable under aggressive race and trail conditions.
Vehicle Fitment
| Make | Model | Year Range | Specific Years |
| GasGas | EC 250 / EC 300 | 2021–2024 | 2021, 2022, 2023, 2024 |
| GasGas | EX 250 / EX 300 | 2021–2025 | 2021, 2022, 2023, 2024, 2025 |
| GasGas | MC 250 | 2022–2025 | 2022, 2023, 2024, 2025 |
| Husqvarna | TC 250 / TC 300 | 2014–2025 | 2014 through 2025 |
| Husqvarna | TE 250 / TE 300 (incl. i / TPi variants) | 2014–2025 | 2014 through 2025 |
| Husqvarna | TX 300 / TX 300i | 2017–2025 | 2017 through 2025 |
| KTM | 250 / 300 SX | 2003–2025 | 2003 through 2025 |
| KTM | 250 / 300 XC | 2006–2025 | 2006 through 2025 |
| KTM | 250 / 300 EXC (incl. TPi variants) | 2004–2025 | 2004 through 2025 |
| KTM | Freeride 250R | 2014–2017 | 2014, 2015, 2016, 2017 |
Kit Contents:
- Forged Connecting Rod
- Crankpin
- Big-End Bearing
- Small-End (Wrist Pin) Bearing
- Thrust Washers (where applicable)
TSO Tip
When rebuilding these Austrian powerplants, always verify that your crankshaft total indicated runout (TIR) measures under 0.03mm on V-blocks before dropping the assembly back into the cases. Generously pre-lubricate the lower rod bearing with clean two-stroke premix oil during assembly to prevent any dry-start scuffing the split-second the engine fires.
Compatibility
Fetching compatibility details...
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