VERTEX UK PISTON KIT         24103A     US PRO HC Comp. 14.4:1   (Distributed by oro2u.com)

All Vertex Pistons Feature:  
- Standard pistons and components are OEM replacements.
- Kits include piston, rings, wrist pin and circlips.
- All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.
- Replacement rings are sold individually.
- Made in Italy.
- Fitted in many oem bikes as STD.

SPECIFICATIONS:

• BORE SIZE.   80.00mm BIG BORE +3.00mm [A   79.95mm]

Replacement Parts.

• Rings.   590280000002 SET
• Pin.   711195
• Clips. 72055

Cross reference numbers ONLY.

• Piston Assy 1SM-116A0-10-00
• Piston (Std) 1SM-11631-10-00
• Piston Ring Set (Std) 1SM-11603-00-00
• Pin, Piston 1SM-11633-20-00
• Circlip 93450-17129-00

MODEL FITMENT

• YAMAHA YZ 250F 2015-2018 US-PRO BIG BORE COMPR 14,4:1