Wiseco PK1922 Top End Kit - Standard Bore 77.00mm, 13.5:1 Compression

Bore: 77.00mm
Compression: 13.5:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Bore - Standard: 77.00mm.
Bore - Actual: 77.00mm.
Bore - Oversize: STD.
Compression Ratio - Actual: 13.5:1.
Skirt Coating: ArmorGlide.
ITEM CONTENTS.
40151M07700 - Yamaha 16-18 YZ250F 13.5:1 CR.
7700YC - 77.00 mm Ring Set .8 x 1.5mm.
CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR).
Ring - Set.
S677 - PistonPin 16 x 40mm NonChromed TW.
W6929 - TopEnd Gasket Kit Yamaha YZ250F 14-18.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

2018-2019 Yamaha WR250F
2016-2018 Yamaha YZ250F
2017-2019 Yamaha YZ250FX