The Namura NX-30085-BK Top End Kit is designed for Suzuki RM85 two-stroke motorcycles equipped with a SCEM composite cylinder. This complete top-end replacement kit includes a piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit for a convenient engine refresh. The 47.95 mm piston size is engineered for compatible applications and supports dependable fitment when rebuilding or servicing the top end.
Namura manufactures this kit using a hypereutectic casting process that provides increased silicon content, controlled expansion, and enhanced wear resistance under higher cylinder temperatures. The piston skirts feature a MOS2 coating made from Teflon and molybdenum. This rolled-on coating process creates a strong bonded surface that helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while anodized domes improve heat resistance and durability.
The Namura NX-30085-BK fits 2002–2009, 2012, and 2020 Suzuki RM85 models listed below. Verify the motorcycle year, cylinder type, piston size, and existing engine specifications before installation. This product is supplied by the manufacturer under part number NX-30085-BK and is also associated with vendor part number 185-3085B.
Features:
- Complete top-end kit includes piston, rings, wrist pin, clips, top-end bearing, and gasket kit
- 47.95 mm piston size for compatible Suzuki RM85 applications
- MOS2 Teflon and molybdenum coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston heads help reflect combustion heat and reduce carbon buildup
- Anodized piston domes provide increased heat resistance and durability
- Hypereutectic casting process delivers controlled expansion and improved wear resistance
- Fits 2002–2009, 2012, and 2020 Suzuki RM85 models with compatible SCEM composite cylinders
- Manufacturer part number: NX-30085-BK
- Vendor part number: 185-3085B
Fitment:
2002 Suzuki RM85
2003 Suzuki RM85
2004 Suzuki RM85
2005 Suzuki RM85
2006 Suzuki RM85
2007 Suzuki RM85
2008 Suzuki RM85
2009 Suzuki RM85
2010 Suzuki RM85
2011 Suzuki RM85
2012 Suzuki RM85
2013 Suzuki RM85
2014 Suzuki RM85
2015 Suzuki RM85
2016 Suzuki RM85
2017 Suzuki RM85
2018 Suzuki RM85
2019 Suzuki RM85
2020 Suzuki RM85
2021 Suzuki RM85