VERTEX UK PISTON KIT     A   COMPR 13,7:1         (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.

SPECIFICATION:

• BORE SIZE. 77.0 mm   [A 76.95 mm]

Replacement Parts.

• Rings.    
• Pin.    
• Clips.  

MODEL FITMENT

• YAMAHA YZ 250F 2017-2018 US-PRO HC COMPR 13,7:1