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Big Bore Kits & Cylinder Kits

47cc and 49cc 2-Stroke Performance Cylinder Kit
47cc and 49cc 2-Stroke Performance Cylinder Kit

Part #: 107-67  

  • Complete 44mm Cylinder Kit for the 47cc / 49cc Reed induction engine. This engine comes on Cag and Daytona Pocket Bikes, Pocket Quads and Small Dirt Bikes. You can choose from 10mm or 12mm Piston Pin Option.
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Morini 41mm Cylinder Kit
Morini 41mm Cylinder Kit

Part #: 185-1  

  • 41mm Cylinder Kit for Morini AD50 engines commonly found on Hyosung, Suzuki and TGB Street Scooters.
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Morini 47mm Big Bore Cylinder Kit
Morini 47mm Big Bore Cylinder Kit

Part #: 185-6  

  • 47mm Big Bore Cylinder Kit for Morini AD50 engines commonly found on Hyosung, Suzuki and TGB Street Scooters.
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Hoca Morini 47mm Big Bore Cylinder Kit
Hoca Morini 47mm Big Bore Cylinder Kit

Part #: 185-10  

  • HOCA PERFORMANCE PARTSHoca 47mm Big Bore Cylinder Kit for Morini AD50 engines commonly found on Hyosung, Suzuki and TGB Street Scooters.
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TB60 Big Bore Kit
TB60 Big Bore Kit

Part #: 169-185  

  • Big Bore Cylinder Kit for 50cc 2-stroke TB50 1DE41QMB engines.
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Hoca 39mm Dio SR Performance Cylinder Kit
Hoca 39mm Dio SR Performance Cylinder Kit

Part #: 169-389  

  • img-qind.JPGHoca 39mm (50cc) Honda Dio SR Cylinder Set.
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Hoca 50mm Dio SR Performance Cylinder Kit
Hoca 50mm Dio SR Performance Cylinder Kit

Part #: 169-390  

  • img-qind.JPGHoca 50mm (81.3cc) Honda Dio-SR Big Bore Cylinder Set.
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Athena 47.6mm Dio SR Performance Cylinder Kit
Athena 47.6mm Dio SR Performance Cylinder Kit

Part #: 135-1  

  • img-qind.JPG Athena 47.6mm (70cc) Honda Dio-SR Big Bore Cylinder and Head Kit.
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Hoca 39mm Kymco 2-Stroke AC Cylinder Kit
Hoca 39mm Kymco 2-Stroke AC Cylinder Kit

Part #: 169-404  

  • img-qind.JPGHoca 39mm 2-Stroke Air-Cooled Cylinder Kit for the Kymco Cobra 50, Super 8 50, Super 9 50, People 50, Like 50, Yup 50 and many more.
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Hoca 39mm Kymco 2-Stroke LC Cylinder Kit
Hoca 39mm Kymco 2-Stroke LC Cylinder Kit

Part #: 169-402  

  • img-qind.JPGHoca 39mm 2-Stroke Liquid-Cooled Cylinder Kit for the Kymco Super 9 50 ('00-'04) and Kymco Dink 50 ('98-'02).
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SSP-G 47mm Kymco 2-Stroke AC Big Bore Cylinder Kit
SSP-G 47mm Kymco 2-Stroke AC Big Bore Cylinder Kit

Part #: 169-405  

  • img-qind.JPGSSP-G 47mm 2-Stroke Air-Cooled Big Bore Cylinder Kit for the Kymco Cobra 50, Super 8 50, Super 9 50, People 50, Like 50, Yup 50 and many more.
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Charmo 47mm Kymco 2-Stroke LC Big Bore Cylinder Kit
Charmo 47mm Kymco 2-Stroke LC Big Bore Cylinder Kit

Part #: 169-403  

  • img-qind.JPGCharmo 47mm 2-Stroke Liquid-Cooled 72cc Big Bore Cylinder Kit for the Kymco Super 9 50 ('00-'04) and Kymco Dink 50 ('98-'02).
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SSP-G Zuma 50F Big Bore Cylinder & Head Kit - 47mm
SSP-G Zuma 50F Big Bore Cylinder & Head Kit - 47mm

Part #: 169-452  

  • img-qind.JPGSSP-G 47mm Big Bore Cylinder and Head Kit for the Yamaha Zuma 50F 4 Stroke Liquid Cooled Scooter and many other makes and models. Upgrades to 75.6cc!
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Koso 170cc Big Bore Kit with 4V Cylinder Head - Honda Grom
Koso 170cc Big Bore Kit with 4V Cylinder Head - Honda Grom

Part #: 128-18  

  • img-qind.JPGThis complete 170cc Big Bore Kit with 4V Cylinder Head Kit is the perfect add‑on for all horsepower enthusiasts looking for performance!
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Koso 170cc 61mm Big Bore Kit - Honda Grom
Koso 170cc 61mm Big Bore Kit - Honda Grom

Part #: 128-6  

  • img-qind.JPGKoso 170cc Big Bore Kit (MB623002) for the Honda Grom includes a ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts.
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Hoca 63mm Honda Grom Big Bore Cylinder Kit
Hoca 63mm Honda Grom Big Bore Cylinder Kit

Part #: 169-432  

  • img-qind.JPGHoca 63mm 4-Stroke Big Bore Cylinder Kit for the Honda Grom 125. Upgrades to 180cc!!!
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SSP-G 59mm Z125 Performance Cylinder Kit
SSP-G 59mm Z125 Performance Cylinder Kit

Part #: 169-467  

  • img-qind.JPGSSP-G 59mm Kawasaki Z125 Ceramic Coated Big Bore Cylinder Set.
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Hoca Minarelli 2T Power Pack - 10mm Pin
Hoca Minarelli 2T Power Pack - 10mm Pin

Part #: 169-210  

  • img-qind.JPGHoca Racing Kit for 50cc, 2-Stroke Minarelli Style Engines. Made in Taiwan, this kit includes everything you need to increase overall speed, horsepower and torque!
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Hoca Minarelli 2T Power Pack - 12mm Pin
Hoca Minarelli 2T Power Pack - 12mm Pin

Part #: 169-211  

  • img-qind.JPGHoca Racing Kit for 50cc, 2-Stroke Minarelli Style Engines. Made in Taiwan, this kit includes everything you need to increase overall speed, horsepower and torque!
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Universal Parts Minarelli 40mm Cylinder & Head Kit
Universal Parts Minarelli 40mm Cylinder & Head Kit

Part #: 161-226  

  • img-qind.JPGUniversal Parts 40mm Stock Cylinder and Head Kit for 50cc 2-stroke Minarelli 1PE40QMB Jog engines. Includes 10mm Piston Pin.
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Results 1-20 of 57123