Cylinders
KOSO 170cc 4v Combo Kit For Honda Grom
$ 798.47
If your wanting more power out of your grom, but you want to stick with high quality brands, look no further. I run this on my personal bike, and I...
KOSO grom 170cc bore kit
$ 326.97
One of the best kits on the market. Can be used with 2v, or the koso 4v head. Trust the name with a reputation. comes with piston, rings, gaskets, etc....
2fast 70cc zuma/jog kit
$ 1,640.00 $ 1,834.75
Here's the famous 2fast kit you've all heard about. This is the top dog 70cc kit on the market. This is a full race kit, crank, bore and pipe. NO bearings...
Polini corsa For Honda Elite '94+ And Dio
$ 255.22
Time to step it up a notch with polini’s FACTORY ported 72cc cylinder kit. Its a step up from the polini contessa kit. Be prepared to ride wheelies and pick...
Polini Contessa 72cc big bore kit Dio
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This is Polini's entry level street kit with amazing performance. Improvement over the factory rated horse power of 11.7. This kit will give you much better acceleration, mid-range power and...
Polini Corsa Big Bore Kit For Yamaha Zuma '89-'01
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The corsa is a killer bore, for the zuma vertical. Polini's classic 2 ring design, built to last. When you receive this kit, it's clear that your money went into the...
Polini Contessa For Yamaha Zuma '89-'01
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The contessa is a killer sport bore, for the zuma vertical. Polini's classic 2 ring design, built to last. When you recieve this kit, it's clear that your money went...
Zuma Polini Aluminum sport bore 70cc
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This if this as the corsas bigger badder brother. 70cc, one ring 10-11hp bore. The alum bores have better heat dissipation, and the nikasil lining is extremely hard, making this...
Polini contessa "sport kit" for zuma
$ 162.97 $ 183.47
Polini 70cc Cast Iron Cylinder Kit "Sport" Zuma, a very durable high-performance cast iron cylinder for everyday use. This kit is known for its impressive top speed considering the category...
Zuma Polini evolution 70cc
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this is the most powerful Polini bore for the zuma vertical. One ring, hard nikasil lining, and plenty of design hours are to make your bike scream. Don't call us...
Polini 158cc zuma big bore kit
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Heres your go to kit, for bolt on, simple install, and ensured results. This kit includes a 158cc bore, gaskets, piston, c clips, and a tuner. No chinese or taiwan stuff...
MXS Zuma vertical 70cc 16/19hp bore kit
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70cc Cylinder Kit Zuma vertical kit 11/19Hp! The Nikasil-plated aluminium cylinder has 5 transfer ports and an oval exhaust port. The kit comes with a HQ single-ring piston (10mm pin)...
Stage6 Streetrace 70cc Prebug
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Finally the Vertical Minarelli Stage6 Streetrace back in production!!! Stage6 70cc Cast Iron Cylinder Kit "StreetRace" for Minarelli vertical. For this particular version, Stage6 got together with the MXS Racing specialists...
Stage6 Cylinder Kit "Racing MK 2" 70cc 12mm
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Stage6 70cc Racing Cylinder Kit MKII, 12mm, Yamaha Zuma Stage6 engineers completely revised the design of the Stage6 70cc Racing MK cylinder and managed to get impressive performance out of a...
Polini 70cc Cylinder Kit Piaggio
$ 203.97 $ 255.22
If your main goal is to have a bike that is RELIABLE, and strong, this is the cylinder you want. Polini is known for having some of the strongest, most...
Stage6 streetrace LC 10mm
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Stage6 70cc Cast Iron Cylinder Kit "StreetRace" for Minarelli horizontal LC (10mm). Remember, if you run this kit on your zuma, you will need to install radiator and cooling ccomponents....
Piaggio Stage6 70cc RACING MK2 Liquid Cooled Cylinder
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Get in on this killer deal while you can. We have two of these kits, one was mocked up on an engine the other was never opened. This is for...
Malossi Sport 70cc Cast Kit ZUMA / Minarelli Horizontal
$ 142.47 $ 203.97
Malossi 70cc Cast Iron Cylinder Kit "Sport" = (Minarelli horizontal AC, 10mm) - A cast iron cylinder built for everyday use. Set up properly (17.5mm carburetor and sports exhaust), this kit...
Malossi MHR 72cc Big bore kit for Honda Elite '94+
$ 265.47 $ 322.87
MHR Replica is a 70cc aluminium cylinder with hard chromed cylinder liner. One of the strongest performance 70cc kits when going from sport to racing. Large 3-piece outlet and 6...
Malossi 158cc big bore kit for Zuma 125
$ 449.97
153cc cylinder kit for your Zuma 125 This aluminum cylinder with coated piston path of Malossi offers a volume of 153 cc (58 mm Bore). The result is a significant...
Elite / Dio cylinder kit 75cc/49cc
$ 132.22
Here's a good solution for the guys trying to stay within a budget. Super simple, easy to install kit that offers good torque and power gains. No head is needed...
Malossi Big Bore Kit Vertical ZUMA 89-01
$ 132.22
Straight out of Malossi's Italian workshop. The malossi cast kit is a tried and true reliable sport kit, that will last a long time, and provide that low end grunt...
Malossi Aero / SE50 72cc Big Bore Cylinder Kit
$ 142.47
This is the best big bore kit made for the Aero, and SE50 Elite with USDM AF05 engine. Why get a cheaper chinese/taiwan cylinder kit, when these are already so...
Malossi 70cc bore kit aprilia sr50
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70cc malossi bore kit for the morini style sr50. This is for the morini model. This kit rocks due to the fact that it comes with a malossi piggyback ecu. We...
NCY Elite / DIO 82cc 50mm Cylinder Kit
$ 101.47
Looking for a little more cc, for a budget price? NCY offers a reasonable solution with included gaskets, head, and everything else to do the install. This kit also includes...
NCY Zuma 70cc Cylinder Kit
$ 128.12
Looking for a good 70cc kit that won't break the bank? Look no further than NCY's cast sport cylinder kit for Zuma horizontal. At this price its pretty hard to...
NCY 158CC Big Bore Kit For Yamaha Zuma 125
$ 152.72
Give your Yamaha Zuma 125 some extra juice with this bolt on 158cc. Unlike most scooters, the Yamaha Zuma 125 is a Fuel Injected Scooter, and in order to get this...
NCY 171cc Big Bore Kit For GY6
$ 121.97 $ 152.72
Another win by NCY. bolt on, gy6 150 kits to take your GY6 to 171cc. There is no case cutting required. As always jetting will be required for additional fuel. ...
Taida Liquid cooled dio bore kit OG style
$ 255.22
Quality Taida parts are now in stock. Choose from 54mm bore, or 52.6mm bore. Both liquid cooled, with everything you need to assemble. 54mm bore with 52.6 crank=120cc52.5mm bore with...
Airsal 70cc Kit Zuma
$ 142.47 $ 147.60
Airsal 72cc cylinder for your zuma. We suggest a 17.5mm carb, and matching pipe to take full advantage of this cylinder. Expect 8-10hp from the vertical, 11-12 from the horizontal., choose...
motoforce zuma race bore
$ 142.47
looking for some hp, but your on a tight budget? Need to pay rent so you don't get the boot, yet you still want to race to work? This alum...
Mos 155cc Zuma 125 bore kit
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We're proud to announce a new big bore kit option for the Zuma 125, MOS 58.5mm 155cc big bore cylinder kit! This high-performance cylinder comes with everything you need to...