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Model

Year

Cylinder Kits and Big Bore Kits

Showing 1-20 of 91 item(s) Filter

-20%

BigBore Cylinder kit Malossi 183cc 63mm-125 Minarelli/Yamaha 125cc 4T 4V 2021-2024

Available

Cylinder Kits and Big Bore Kits

BigBore Cylinder kit Malossi 183cc 63mm-125 Minarelli/Yamaha 125cc 4T 4V 2021-2024

Malossi

3117968

€295.28 €369.10

Increases displacement from 125 to 183cc Better torque and power Easy to install with no modifications required

-8%

Oem cylinder Wossner | KTM SX 85 18+ / Husq TC 85 18+ / GasGas MC 85 21+

Shipped in 1-3 days

Cylinder Kits and Big Bore Kits

Oem cylinder Wossner | KTM SX 85 18+ / Husq TC 85 18+ / GasGas MC 85 21+

Wossner

PRC8147A

€458.80 €498.70

WOSSNER cylinders are manufactured using aerospace-grade aluminum casting. The piston sliding surface is coated with nickel-silicon and finished with diamond lapping.

-20%

Cylinder kit Malossi MHR REPLICA Ø 50 77cc | Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Cylinder kit Malossi MHR REPLICA Ø 50 77cc | Minarelli AM6

Malossi

3112228

€263.97 €329.96

-20%

Cylinder kit Malossi MHR TEAM Ø 50 77cc H2O removable head | Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Cylinder kit Malossi MHR TEAM Ø 50 77cc H2O removable head | Minarelli AM6

Malossi

3112386

€303.10 €378.88

-15%

Athena Cylinder Kit 250 cc | Aprilia RS 250

Shipped in 1-3 days

Cylinder Kits and Big Bore Kits

Athena Cylinder Kit 250 cc | Aprilia RS 250

Athena

P400010100001

€572.90 €674.00

The kit includes a high-quality aluminum cylinder with increased bore, cylinder head, piston complete with piston pin and rings, crankshaft, and necessary gaskets. All components of the thermal unit have been designed, manufactured, and tested under rigorous conditions on the track and on static and dynamic test benches to ensure maximum resistance to...

-15%

112 cc Athena Big Bore Cylinder Kit | Yamaha YZ 85 2002-2018

Shipped in 1-3 days

Cylinder Kits and Big Bore Kits

112 cc Athena Big Bore Cylinder Kit | Yamaha YZ 85 2002-2018

Athena

P400485100039

€576.38 €678.09

Noticeable performance increase without compromising engine reliability Maximum durability and smooth running guaranteed by a special nickel-silicon bore coating Cylinder made of a special lightweight aluminum alloy

-15%

Cylinder Kit with gaskets Athena BIG BORE 490cc | Honda CRF 450 02-08

Shipped in 1-3 days

Cylinder Kits and Big Bore Kits

Cylinder Kit with gaskets Athena BIG BORE 490cc | Honda CRF 450 02-08

Athena

P400210100001

€563.63 €663.09

Same reliability and performance of the original components Maximum durability and smoothness guaranteed by a special nickel and silicon treatment Gaskets developed with the most advanced technologies to ensure maximum tightness even at high temperatures and pressures

-32%

Top end cylinder kit Top | TPR 86cc Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Top end cylinder kit Top | TPR 86cc Minarelli AM6

Top Performance-DR

9924230

€269.61 €396.49

6 transfer ports with split exhaust and detachable head Single-ring piston 50 mm bore 44 mm stroke 86 cc displacement

-32%

Top end cylinder kit Top Due plus 75cc Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Top end cylinder kit Top Due plus 75cc Minarelli AM6

Top Performance-DR

9921150

€243.05 €357.42

5 transfers with split waste and decomposable head single ring piston bore 50mm stroke 39mm displacement 75 cc

-20%

Top end cylinder kit Carenzi 50cc Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Top end cylinder kit Carenzi 50cc Minarelli AM6

Carenzi

031000G

€79.60 €99.50

cylinder cast iron piston aluminium bi segments powerful and torquey this cylinder is for the rider looking for more performance for everyday

Exhaust valve 2 | Fantic XX 125 2022+ Yamaha YZ 125 2022+

Available

Cylinder Kits and Big Bore Kits

Exhaust Valve Assembly Right 2 | Fantic XX 125 2022+ Yamaha YZ 125 2022+

Fantic Motor

09255005

€193.00

Original exhaust valve

Oem cylinder Fantic XX 125 22+ / XE 125 23+ / Yamaha YZ 125 22+

Available

Cylinder Kits and Big Bore Kits

Oem cylinder Fantic XX 125 22+ / XE 125 23+ / Yamaha YZ 125 22+

Fantic Motor

09252005

€456.00

Original Fantic cylinder original size B Compatible with Fantic XX 125 2022+ / XE 125 2023+ | Yamaha YZ 125 2022+

Exhaust valve 1 | Fantic XX 125 2022+ Yamaha YZ 125 2022+

Available

Cylinder Kits and Big Bore Kits

Exhaust Valve Assembly Left 1 | Fantic XX 125 2022+ Yamaha YZ 125 2022+

Fantic Motor

09254005

€193.00

-15%

144 cc Athena Big Bore Cylinder Kit 58 mm | Yamaha YZ 125 2022+

Shipped in 1-3 days

Cylinder Kits and Big Bore Kits

144 cc Athena Big Bore Cylinder Kit 58 mm | Yamaha YZ 125 2022+

Athena

P400485100101

€720.48 €847.62

Exhaust valve 2 | Fantic XX 125 21 XE 125 21-22 Yamaha YZ 125 05-21

(1)

Available

Cylinder Kits and Big Bore Kits

Exhaust valve 2 | Fantic XX 125 21 XE 125 21-22 Yamaha YZ 125 05-21

Fantic Motor

05651005

€145.00

(1)

Exhaust valve 1 | Fantic XX 125 21 XE 125 21-22 Yamaha YZ 125 05-21

(1)

Available

Cylinder Kits and Big Bore Kits

Exhaust valve 1 | Fantic XX 125 21 XE 125 21-22 Yamaha YZ 125 05-21

Fantic Motor

05650005

€140.80

(1)

Oem cylinder Fantic XX 125 21 / XE 125 21-22 Yamaha YZ 125 05-21

(1)

Available

Cylinder Kits and Big Bore Kits

Oem cylinder Fantic XX 125 21 / XE 125 21-22 Yamaha YZ 125 05-21

Fantic Motor

05622005

€332.80

(1)

Original Fantic cylinder original size B Compatible with Fantic XX 125 2021 / XE 125 2021-2022 | Yamaha YZ 125 2005-2021

-30%

Cylinder kit Cylinder Works | Kawasaki KXF 250 2006-2008

Available

Cylinder Kits and Big Bore Kits

Cylinder kit Cylinder Works | Kawasaki KXF 250 2006-2008

Cylinder Works

8-30001-K02

€401.47 €573.53

Original replica cylinder kit. Comes complete with piston, seals and piston pin

-30%

Cylinder kit "Cylinder Works" | KTM SXF 450 2016-2022 Husq FC 450 GasGas MCF 450

Available

Cylinder Kits and Big Bore Kits

Cylinder kit "Cylinder Works" | KTM SXF 450 2016-2022 Husq FC 450 GasGas MCF 450

Cylinder Works

8-CW50009K01

€480.15 €685.93

Original replica cylinder kit. Comes complete with piston, seals and piston pin

-32%

Top end cylinder kit DR 73.5cc Minarelli AM6

Available

Cylinder Kits and Big Bore Kits

Top end cylinder kit DR 73.5cc Minarelli AM6

Top Performance-DR

KT00114

€150.73 €221.66

BORE = 49 mm STROKE = 39 mm DISPLACEMENT= 73.5 cc. Compr. ratio= 1:12,5 "Minacrom" cast iron cylinder with 5 transfer ports

Cylinder kits, top ends and big bore kits for 2-stroke and 4-stroke motocross and enduro bikes, including 50cc and 70, 80 and 100cc kits: cylinders, pistons, heads and gaskets for engine tuning.

Before fitting a big bore kit

A big bore kit must be matched with suitable exhaust, jetting and gearing. Always use new gaskets and follow the manufacturer's running-in instructions. If unsure about the right combination for your bike, contact us.

Cylinder Kits and Big Bore Kits for your bike

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