880M05250 Wiseco Std Piston Kit for Kawasaki KX100 2014-2021 52.50 mm

Wiseco Std Piston Kit for Kawasaki KX100

This Wiseco Standard Piston Kit (part 880M05250, 52.50 mm bore) is a forged top-end replacement that restores compression and response on Kawasaki KX100 two-stroke engines.

Overview

This Wiseco Std Piston Kit for Kawasaki KX100 gives mini-class riders a forged piston built to handle repeated high-rpm motocross use. The 52.50 mm size matches the stock bore, so the cylinder stays untouched during a standard rebuild. It works for 2014 through 2021 KX100 machines and includes the piston, rings, wrist pin, and circlips.

Built For Performance

• Forged aluminum piston for durability under two-stroke heat and load
• Standard 52.50 mm bore size fits the OEM cylinder without reboring
• Wiseco part number 880M05250 for easy cross-reference
• Includes piston, ring set, wrist pin, and circlips for a complete rebuild
• Precise ring groove machining supports stable compression

Fits These Machines

• for Kawasaki KX100 2014
• for Kawasaki KX100 2015
• for Kawasaki KX100 2016
• for Kawasaki KX100 2017
• for Kawasaki KX100 2018
• for Kawasaki KX100 2019
• for Kawasaki KX100 2020
• for Kawasaki KX100 2021

On-The-Job Use

• Top-end rebuilds after compression loss or ring wear
• Seasonal freshening of a race or practice KX100
• Replacing a scored or worn stock piston
• Mini-class motocross and trail riding

Specs At A Glance

Good To Know

Q: Can I install this piston without boring my cylinder? A: Yes, the 52.50 mm size is the standard bore, so it suits a cylinder still within service spec. Check bore wear and piston clearance first.

Q: What comes in the piston kit? A: The kit contains the piston, rings, wrist pin, and circlips. Gaskets, a small-end bearing, and assembly lube are sold separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.