Wiseco PK1899 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.
Note: Nikasil Bore.
ITEM CONTENTS.
40116M07700 - Yamaha YZ250F 14-15 13.5:1 CR 7700YC.
7700YC - 77.00 mm Ring Set .8 x 1.5mm.
CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR).
S742 - PistonPin 16 x 41.91mm NonChromed SW.
W6929 - TopEnd Gasket Kit Yamaha YZ250F 14-17.

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:

2015-2017 Yamaha WR250F
2014-2015 Yamaha YZ250F
2015-2016 Yamaha YZ250FX