Wiseco PK1704 Top End Kit (Racers Choice GP Style) - Standard Bore 66.40mm

Bore: 66.40mm
Compression: Standard Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 249cc.
Bore - Standard: 66.40mm.
Bore - Actual: 66.40mm.
Bore - Oversize: STD.
Stroke: 72.00mm.
Cylinders: 1.
Skirt Coating: ArmorGlide.
Treatment: Hard Coat Annodize.
Note: Racers Choice.
Note: 250cc Single Ring.
ITEM CONTENTS.
2614CSA - 66.40 mm TiN Coated Ring.
808M06640 - Yamaha YZ250 99-17 GP Series 2614CSA.
B1003 - Top End Bearing 18 x 22 x 21.8mm.
CW18 - ROUND WIRE PIN LOCKS 18MM (PAIR).
Ring - Set.
S508 - PistonPin 18mm x 2.106in. NonChromed TW.
W5978 - TopEnd Gasket Kit Yamaha YZ250 02-17.

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:

1999-2024 Yamaha YZ250
2022-2023 Yamaha YZ250 Monster Energy Yamaha Racing Edition
2016-2024 Yamaha YZ250X