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MX Yamaha YZ125 piston Click to zoom

Kit includes: Piston, rings (Riken/NP), circlips, and gudgeon pin

Yamaha

YZ125

'97-'01
Mitaka part number: 91.2217
In Stock
From
£49.62 exc. VAT

Specifications

Dimensions

Bore Size 54.00mm
Crown Height 20.50mm
Overall Length 58.00mm
Dome Height 2.30mm
G.P. Diameter 15.00mm
Port Y/N Y
Ring Peg Position 12.50mm
Cutout Height 0.00
Notes Exhaust lube holes

Measurement Reference

Piston measurement diagram - side view Piston measurement diagram - top view

Stock & Pricing

Part # Type Stock Price
91.2217.A Standard (Grade A) 100 £49.62
91.2217.B Standard (Grade B) 100 £49.62
91.2217.C Standard (Grade C) 49 £49.62
91.2217.D Standard (Grade D) 94 £49.62
91.2217.05 0.50MM OVERSIZE 92 £49.62
91.2217.10 1.00MM OVERSIZE 93 £49.62
91.2217.15 1.50MM OVERSIZE 100 £49.62
Last updated: 2026-09-13 08:40:06