Wiseco PK1900 Top End Kit - Standard Bore 97.00mm, 12.5:1 Compression

Bore: 97.00mm
Compression: 12.5:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Bore - Standard: 97.00mm.
Bore - Actual: 97.00mm.
Bore - Oversize: STD.
Compression Ratio - Actual: 12.5:1.
Skirt Coating: ArmorGlide.
Note: Nikasil Bore.
ITEM CONTENTS.
40111M09700 - Yamaha YZ450F 14-17 12.5:1 CR.
9700ZS - 97.00 mm Ring Set.
CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR).
S686 - PistonPin 16 x 41.5mm NonChromed SW.
W6691 - TopEnd Gskt Kit Yam YZ450F 10-17 97mm.

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:

2016-2018 Yamaha WR450F
2014-2017 Yamaha YZ450F
2016-2018 Yamaha YZ450FX