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MX Yamaha YZ80 piston Click to zoom

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

Yamaha

YZ80

'93-'01
Mitaka part number: 91.2109
In Stock
From
£37.50 exc. VAT

Specifications

Dimensions

Bore Size 47.00mm
Crown Height 19.50mm
Overall Length 51.50mm
Dome Height 2.00mm
G.P. Diameter 14.00mm
Port Y/N Y
Ring Peg Position 8.00mm
Cutout Height 0.00

Measurement Reference

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

Stock & Pricing

Part # Type Stock Price
91.2109.A Standard (Grade A) 100 £45.48
91.2109.B Standard (Grade B) 98 £45.48
91.2109.C Standard (Grade C) 97 £45.48
91.2109.D Standard (Grade D) 30 £45.48
91.2019.050 0.50MM OVERSIZE 100 £37.50
91.2019.100 1.00MM OVERSIZE 98 £37.50
Last updated: 2026-09-13 08:40:06