Keep your junior rider's mini rocket tearing up the track with the ProX Connecting Rod Kit (Part No. 03.4022). Manufactured in Japan from ultra-tough, double-forged alloy steels, this kit is engineered to handle the brutal high-RPM environment of high-strung vintage and modern small-bore two-stroke engines while meeting or exceeding OEM standards.
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 delivery and cooling to the big-end bearing, guaranteeing dependable durability under hard mini-racing conditions.
Vehicle Fitment
| Make | Model | Year Range | Specific Years |
| Kawasaki | KX60 | All Years | All Production Years (Vintage & Modern) |
| Kawasaki | KX65 | 2000–2025 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| Suzuki | RM65 | 2003–2005 | 2003, 2004, 2005 |
Kit Contents:
- Forged Connecting Rod
- Crankpin
- Big-End Bearing
- Small-End (Wrist Pin) Bearing
- Thrust Washers (where applicable)
TSO Tip
Small-bore 60cc and 65cc cranks spin at exceptionally high RPMs, making accurate truing critical. Always check your crankshaft total indicated runout (TIR) on V-blocks with a dial indicator—keep it strictly under 0.03mm 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 on initial fire-up.
Compatibility
Fetching compatibility details...
| Year | Make | Model |
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