TB V2 60MM H/C PISTON KIT - TBW1390
 
This kit is designed and manufactured by TB Parts who specialise in pit bike performance parts in USA.
 
High Compression piston kit 60mm.
 
FITS:
TB V2  Style Heads 
YX160 
ZS155
 
SPEC:
Piston O.D = 60mm
Piston Pin O.D = 13mm
Piston Crown Height From Pin Center = 25mm
Piston Top Height From Pin Center = 22mm
Intake Valve Pocket Width = 29mm
Exhaust Valve Pocket Width = 24.50mm
TB PART KIT NUMBER = TBW1390
 
Item Includes:
1x Piston
1x Piston Ring Kit
2x Piston Pin Clips
1x Piston Pin 
 
PLEASE NOTE
To be fitted by a professional and to check valve to piston clearance.
 
TB PARTS NOTES:
Prior to the Z125, most KLX110 customers were either using the 143cc V2 Race Head kits combined with a stroker crank (which bumps up compression); or on higher compression bigger bore kits (our 165cc kits and up); or they were just using the basic 143cc bore kit with stock head that has decent compression (due to a smaller combustion chamber). Because of those past scenarios, a high compression piston for the 143cc V2 Race Heads was not in high demand. 
 
With the arrival of the Z125 (and most of those customers not interested in boring their cases to go to a bigger bore) and with more KLX110 customers interested in remaining at 143cc for new pitbike race class rules, a higher compression piston became in demand so we developed one. 
 
The compression on this piston is:
11:3 – 143cc bore kit combined with the V2 Race Head
12:2 – 143cc bore kit combined with the V2 Race Head and our Stroker Crank
 
In both combinations above, high octane pump gas can be used (Race gas is not required).
 
Note:  This piston kit will also work on the Chinese YX and ZS engines with a 60mm bore combined with our V2 Race Head.