cylinder kit Top Performances 183cc 63mm for Yamaha YZF-R, WR, MT 125i

Top Performances succeeds with this 183cc cylinder to implement the years of experience together with Yamaha in a high quality 4-stroke tuning cylinder kit for 4-valve, fuel-injected engines.

This setup relies on high quality materials and the best possible performance. In addition to the piston and gaskets, a specially manufactured ECU is also included in the kit.

Technical data:

• Capacity: 183cc
• Bore: 63mm
• Stroke: 58.6mm
• Compression: 11.5:1