Scooter Performance Parts
Hoca offers big bore cylinder kits in a number of displacements, fuel system upgrades such as larger carburetors and matching performance intakes, 2 stroke expansion chamber exhausts as well as transmission tuning items such as gear sets, clutches, variators and roller weights.
Dr. Pulley has innovative transmission tuning parts such as their sliding roller weights and low slippage Hit clutch. In addition to these items they also offer standard round roller weights which utilize the same proprietary self lubricating material found in the sliding weights and a performance variator designed to give your scooter optimal gear ratios.
We also offer performance four stroke exhaust systems designed in house as a supplement to the Hoca and YMS V8 brand performance exhaust for two and four stroke engines we carry.
Scooter Performance Parts - Featured Items - View All »
- SSP-G After-Market Performance GY6 50 Transmission Kit for QMB139 engines.
- Dr. Pulley Performance Variator Assembly for 50cc 2-stroke Minarelli 1PE40QMB Jog engines.
- Dr. Pulley 18x14 Sliding Roller Weights for 125/150cc 4-stroke GY6 engines. Choose from 7g through 17.5g weights.
- High Performance Stainless Steel Exhaust for the Honda Ruckus.
- SSP-G 2nd Gen Round Stainless Steel Performance After-Market Exhaust Scooter Part for 150cc and 125cc GY6 4-stroke QMJ152/157 QMI152/157 engine based scooters.
- Hoca 47.6mm Ceramic Big Bore Racing Kit w/ Nikasil Coating for 50cc 2-stroke Minarelli engines found on many popular Street Scooters & ATVs. Upgrades to a 70cc!
- Hoca 50cc QMB139 4-stroke 50mm, Racing Big Bore Cylinder Set.
- Hoca, 63mm Big Bore Cylinder Kit for 150cc and 125cc GY6 4-stroke engines and engine based vehicles.
- Dr. Pulley HiT Clutch 151201 with Bell for Scooters with 50cc 2-stroke Minarelli 1PE40QMB Jog engines.
- Performance Stainless Steel Exhaust for the Honda Ruckus.
Part #: 137-2 (*Click* for in-stock date)
- Naraku Super Transmission Kit Eco for 50cc QMB139 engines.
Part #: 137-6 (*Click* for in-stock date)
- Naraku 107mm Sport Clutch for 50cc engines.
- Naraku Sport Clutch for GY6 125 and 150cc engines.
- Naraku Maxi Speed Variator Kit for GY6 125 and 150cc engines.
Part #: 137-1 (*Click* for in-stock date)
- Naraku Super Transmission Kit for 50cc QMB139 engines. 669mm, 729mm and 788mm Belt Lengths Available.