Our designed and manufactured Race Head and Barrel kit.
Head has lots of extra cooling fins,
Round dome style combustion chamber
boost port for 44mm
hole in pinton 12mm
Needle bearing 16mm
The Barrel has large hole
Suit: All Race bikes with 47 and 49cc air cooling engine

We also sell many high performance parts or tuning parts for pocket bikes,
scooters, moped, dirt bikes and 4-stroke parts:
1) all spare parts for pocket bikes and ATV
2) engine/motor (2 or 4 stroke)
3) cylinder-air cooled and water-cooled, pull starter,
gearbox, clutch bell, spark plug, bearing, gas tank/cap
4) piston, piston ring, clips, needle bearings
5) carburetor, air filter, v-stack, choke set, reeds block, intake manifold, gasket
6) adjustable racing clutch, flywheel, ignition coil
7) switch key
8) sprocket, pinion gear, chain, chain master links, chain tensioner
9) muffler, exhaust
10) scooter racing tire, tube, front shock
11) brake caliper, brake disc
12) complete body kits, headlight, tail light, seat, speedometer
13) throttle and brake cable, foot peg, hand grip, brake lever, controller
14)carburetor, performance carburetor, jets
15) dampener