Representative manufacturer images. Check the specification of this exact part number.
Wiseco
Wiseco Piston Kit Yamaha YZ450F '20-22 13.5:1 CR
Part number: W40255M09700
€232.19
Sales price · excluding VAT and shipping
Not currently in supplier stockCatalogue updated: 6 Nov 2026, 09:06
Supplier stock; quantities are not reserved.Supplier stock is separate from stock physically held at Nick's Garage. Delivery to Cyprus and the final quotation are confirmed before ordering.
Technical specifications
- Bore - Standard
- 97.00 mm
- Piston Size
- 96.95 mm
- Compression Ratio - Actual
- 13.5:1
- Compression Ratio - Over Stock
- +0.5
- Total Height
- 40.40 mm
- Piston Pin Hole Diameter
- 18.00 mm
- Compression Height
- 15.00 mm
- Boss Spacing
- 19.80 mm
- Piston Head Type
- Flat with hollow top
- Skirt Coating
- Armorglide Coating
- Additional Info
- 4 Valve Pockets, Forged Piston
- OEM Reference No
- B2W-11631-00
- Country of Origin
- USA
- GTIN
- 00193564430663
- Piston Ring Part #
- W9700WA
- Piston Pin Part #
- JE-708-2020-16-93C
- Circlip Part #
- WCW18