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MX Yamaha YZ125 piston Click to zoom

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

Yamaha

YZ125

'90-'93
Mitaka part number: 91.2211
In Stock
From
£49.62 exc. VAT

Specifications

Dimensions

Bore Size 56.00mm
Crown Height 20.00mm
Overall Length 55.00mm
Dome Height 0.00mm
G.P. Diameter 16.00mm
Port Y/N N
Ring Peg Position 12.50mm
Cutout Height 10.00
Notes Exhaust lube holes

Measurement Reference

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

Stock & Pricing

Part # Type Stock Price
91.2211.A Standard (Grade A) 100 £49.62
91.2211.B Standard (Grade B) 100 £49.62
91.2211.C Standard (Grade C) 97 £49.62
91.2211.D Standard (Grade D) 39 £49.62
91.2211.05 0.50MM OVERSIZE 100 £49.62
91.2211.10 1.00MM OVERSIZE 22 £49.62
Last updated: 2026-09-13 08:40:06