Restore dependable top-end performance with the Namura NX-10000-CK1 Top End Kit, designed for select Honda CR125R two-stroke applications. This kit includes the essential components needed for a piston replacement, including a piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit. The 53.96 mm piston size and 11:1 compression specification support proper fitment and reliable engine operation when installed according to the motorcycle manufacturer's service procedures.
Built using Namura's hypereutectic casting process, the piston provides increased silicon content for controlled expansion and improved wear resistance. The design is intended to withstand elevated cylinder temperatures while maintaining dependable performance. MOS2, or Teflon/molybdenum, coated skirts are applied using a rolled-on process that creates a strong bond and helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.
The piston also features a machined smooth head to help reflect combustion heat and reduce carbon buildup, protecting the piston crown. An anodized dome increases heat resistance and durability compared with a non-anodized design. Namura manufacturer part number NX-10000-CK1 is supplied under vendor part number 185-1000C1. This top-end kit fits the 2000, 2001, and 2002 Honda CR125R.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 53.96 mm piston size with 11:1 compression specification
- MOS2 Teflon/molybdenum-coated skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
- Anodized dome improves heat resistance and piston durability
- Hypereutectic casting process provides controlled expansion, increased wear resistance, and improved high-temperature performance
- Fits 2000, 2001, and 2002 Honda CR125R models
- Brand: Namura
- Manufacturer part number: NX-10000-CK1
- Vendor part number: 185-1000C1
Fitment:
2000 Honda CR125R
2001 Honda CR125R
2002 Honda CR125R