Race Cam and 32t cam sprocket Lifan Heads and our Import Race Head. The cam provides easy bolt on power with its aggressive lift and duration without sacrificing low end torque. Its a high quality cam that uses NTN bearings and is a reasonably priced performance upgrade. Specs: .275" intake valve lift and 230 degrees of duration @ .050", 275" exhaust valve lift and 230 degrees of duration @ .050" Size: 42mm large bearing, 28mm small bearing, Approx 70mm center to center.

150cc to 160cc Bore Kit for 4 Valve Cylinder Heads:

- All aluminum ceramic plated 60mm cylinder
- Lightweight short skirt 60mm 4 valve piston with rings, pin, & clips
- Head gasket kit - includes the cylinder head o-ring set and an exhaust gasket.

This bore kit is designed to work the Kitaco and YX (Dirtmax) 4 valve cylinder heads and provides you with the stock size bore (60mm) to use with your 4 valve head. The kit includes an all aluminum ceramic plated 60mm cylinder.  This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Also included is a lightweight high revving 4 valve piston.  Finally, our head gasket kit includes a head o-ring set and exhaust gasket so you don't have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new bore kit consists of high quality parts and requires no machining to the cases - bolt on and go! This kit is only for the YX/GPX/Zongchen 150cc to 160cc engines with a a KLX110 type topend.

There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.

170cc to 184cc Big Bore Kit for 4 Valve Cylinder Heads:

- All aluminum ceramic plated 64mm cylinder
- Lightweight short skirt 64mm 4 valve piston with rings, pin, & clips
- Head gasket kit - includes the cylinder head o-ring set and an exhaust gasket.

This bore kit is designed to work the Kitaco and YX (Dirtmax) 4 Valve Cylinder heads and provides you with an additional option to increase the power of your engine. The kit includes an all aluminum ceramic plated 64mm cylinder which will increase your engine displacement.  This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Also included is a very lightweight short skirt high revving piston.  Finally, our head gasket kit includes a head o-ring set and exhaust gasket so you don't have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new bore kit consists of high quality parts and requires no machining to the cases - bolt on and go! This kit is only for the YX/GPX/Zongchen 150cc to 160cc engines with a a KLX110 type topend.  The increase in displacement will depend on your stock engine size.  With this kit:

- A stock 150cc engine will increase to 170cc
- A stock 155cc engine will increase to 177cc
- A stock 160cc engine will increase to 184cc

There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.

TB PARTS 64mm CYLINDER [TBW0523]

Ceramic coated 64mm cylinder.

This cylinder can be used on YX/ZR1 170-184 and Zongchen Z155 engines with bore kit (178cc).

TB replacement Valve Guide set V2

TB Parts - Valve Seals for TB V2 heads

Tappet Adjuster wrench

Very helpfull when adjusting valves, compatible with all tb parts race heand and many others pitbike engine heads (YX, ZS, YX, Lifan, etc.).

REPLACEMENT RINGS FOR TB 64mm PISTONS