Cylinders
Polini Corsa for Honda Elite '94+ and Dio
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Time to step it up a notch with polini’s FACTORY ported 72cc cylinder kit. It's a step up from the polini contessa kit. Be prepared to ride wheelies and pick...
Malossi MHR 72cc Big bore kit for Honda Elite '94+
$ 277.99 $ 336.99
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...
Polini Corsa Big Bore Kit For Yamaha Zuma '89-'01
$ 252.99 $ 285.99
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...
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...
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...
Malossi Aero / SE50 72cc Big Bore Cylinder Kit
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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...
Stage6 Streetrace 70cc Prebug
$ 156.99
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 "StreetRace" 70cc cast iron
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Stage6 70cc Cast Iron Cylinder Kit "StreetRace" (Minarelli horizontal) Stage6 cast iron cylinders as an affordable alternative to pricier aluminium cylinders. The cylinder has 5 resp. 6 transfer ports (depending...
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....
Malossi Big Bore Kit Vertical ZUMA 89-01
$ 138.99
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...
NCY Zuma 70cc Cylinder Kit
$ 132.99
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...
KOSO 170cc 4v Combo Kit For Honda Grom
$ 814.99
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...
Malossi 158cc big bore kit for Zuma 125
$ 468.99
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...
Polini corsa liquid cooled zuma minarelli
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Here's one of the best selling kits on the market. These Liquid cooled bikes will fit any minarelli style horizontal engine such as Yamaha zuma Yamaha vino Yamaha jog...
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)...
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...
Airsal 70cc Kit Zuma
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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...
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 Contessa "Sport Kit" Zuma
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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...
NCY 158CC Big Bore Kit For Yamaha Zuma 125
$ 155.99
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...
70/94cc Malossi RC-ONE engine KIT
$ 3,626.99
It's hard to beat the malossi kits. These come with everything you need, to assemble a turn key, bolt in powerhouse. Choose from 94cc or 70cc, minarelli/zuma fitment, or piaggio. ....
2fast 70cc zuma/jog kit
$ 1,672.99 $ 1,871.99
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...
Genuine Buddy 70cc "Sport" Package
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We've taken the time to put together a QUALITY well rounded tuning kit for your buddy 50! This is compiled 100% of quality parts. No flim flam Alibaba stuff over...
GY6 taida 171 bore kit/head/cam package 61mm drop in
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Heres your go to kit, for bolt on, simple install, and ensured results. This kit includes a 171cc bore, gaskets, piston, c clips, and a high flow head with an...
KOSO grom 170cc bore kit
$ 333.99
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....
Polini Contessa 72cc big bore kit Dio
$ 171.99 $ 236.99
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...
NCY Case Boring Tool
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Engine bore tool by NCY. A must for using most large bore cylinder kits. IMPROVED DESIGN!! Now works with multiple engine designs!!! GY6 MODELS: BORE UP TO 67MM. OTHER MODELS...
Polini Contessa For Yamaha Zuma '89-'01
$ 156.99 $ 208.99
The contessa is a killer sport bore for the zuma minarelli vertical. Polini's classic 2 ring design, built to last. When you recieve this kit, it's clear that your money...
Malossi Sport 70cc cylinder ZUMA /Genuine/ Minarelli Horizontal
$ 148.99 $ 213.99
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...
Top Performance Crank For Yamaha Zuma '89-'01, '02-'11 & Aprilia SR50 Minarelli
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High quality, cranks for minarelli. 10mm wrist pin, choose from horizontal (02-11) or vertical (89-01)
KOSO grom camshaft 240
$ 127.99
Grab a koso camshaft for your grom, to pick up some easy hp.
NCY 171cc Big Bore Kit For GY6
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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. ...