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Cylinder kits

(17 products)
Cylinder Cylinder kits Cylinder Heads and Pistons Camshafts and Valves Cylinder Gaskets Cylinder Accessories
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17
17
products
found
17
17
products
found
Tuning level
Original Sport
Cylinder material
Aluminium Cast Iron
Displacement
50cc 80cc 105cc 125cc 144cc 150cc 177cc 400cc 490cc
Piston pin
10 mm 12 mm 13 mm 14 mm
Stroke
Original
Conrod length
Standard
Series
Sport T6
Brand
Airsal Athena Moose Racing MotoForce Naraku Top Performances
Price
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MotoForce
Cylinder Kit 80 Motoforce Yamaha PW 80
Article no.: MF19.19903

Cylinder Kit 80 Motoforce Yamaha PW 80

61,00 €
In stock
RRP
88,50 €
-31% Discount
Sale
Athena
Cylinder Kit Athena Big Bore 144cc KX 125
Article no.: AT-09310109

Cylinder Kit Athena Big Bore 144cc KX 125

733,00 €
In stock
Athena
Cylinder Kit Athena DR-Z 400
Article no.: AT-09310015

Cylinder Kit Athena DR-Z 400

374,00 €
In stock
RRP
594,00 €
-37% Discount
Sale
Athena
Cylinder Kitkit 490cc CRF450
Article no.: AT-09310014

Cylinder Kitkit 490cc CRF450

506,00 €
In stock
RRP
821,00 €
-38% Discount
Sale
Athena
Cylinder Kit KX 125
Article no.: AT-09310012

Cylinder Kit KX 125

673,00 €
In stock
Naraku
Cylinder Kit Naraku 177cc ceramic Yamaha YZF-R WR / Xmax 125
Article no.: NK600.74

Cylinder Kit Naraku 177cc ceramic Yamaha YZF-R WR / Xmax 125

156,00 €
In stock
Sale
Airsal
Cylinder Kit Airsal T6 Yamaha Xmax / X-City 125cc
Article no.: C02125952

Cylinder Kit Airsal T6 Yamaha Xmax / X-City 125cc

134,00 €
In stock
Moose Racing
Cylinder standard Moose Racing SX-F / EXC-F 250
Article no.: MR09310465

Cylinder standard Moose Racing SX-F / EXC-F 250

224,00 €
In stock
RRP
458,00 €
-51% Discount
Moose Racing
Cylinder standard Moose Racing CRF 450 2009-2016
Article no.: MR09310446

Cylinder standard Moose Racing CRF 450 2009-2016

282,00 €
In stock
RRP
339,00 €
-17% Discount
Airsal
Cylinder Kit 52,4mm Airsal Sport Yamaha Xmax 125cc 4T
Article no.: CGN483424

Cylinder Kit 52,4mm Airsal Sport Yamaha Xmax 125cc 4T

116,00 €
In stock
MotoForce
Cylinder Kit 50 Motoforce Yamaha PW 50
Article no.: MF19.19902

Cylinder Kit 50 Motoforce Yamaha PW 50

51,00 €
In stock soon
RRP
54,50 €
-6% Discount
Athena
Cylinder Kit Athena YZ85 105cc
Article no.: AT-09310473

Cylinder Kit Athena YZ85 105cc

550,00 €
Currently not in stock
Athena
Cylinder Kit Athena Big Bore 144cc YZ 125 1998-2004
Article no.: AT-09310258

Cylinder Kit Athena Big Bore 144cc YZ 125 1998-2004

807,00 €
Currently not in stock
Athena
Cylinder Kit Athena YZ 125
Article no.: AT-09310095

Cylinder Kit Athena YZ 125

734,00 €
Currently not in stock
RRP
941,00 €
-22% Discount
Naraku
Cylinder Kit Naraku 150cc 60mm Yamaha Xmax / YZF / WR 125
Article no.: NK600.73
1

Cylinder Kit Naraku 150cc 60mm Yamaha Xmax / YZF / WR 125

139,00 €
Currently not in stock
147,00 €
-5% Discount
Naraku
Cylinder Kit Naraku 125cc V.2 Yamaha X-Max, YZF, WR, Beta RR, Fantic, Rieju 125
Article no.: NK600.58.2

Cylinder Kit Naraku 125cc V.2 Yamaha X-Max, YZF, WR, Beta RR, Fantic, Rieju 125

124,00 €
Currently not in stock
Top Performances
Cylinder Kit d.52mm Top Performances 125cc Alu Yamaha Xmax
Article no.: T9932700

Cylinder Kit d.52mm Top Performances 125cc Alu Yamaha Xmax

189,00 €
Currently not in stock

Motocross cylinders

In motocross, motorcycles are designed for performance and are therefore already equipped with high-performance cylinders. Cylinder kits are therefore mostly used for repairs rather than for tuning.

In our online shop, we carry cylinders for both 2-stroke and 4-stroke bikes. For 2-stroke models, there are cylinders in OEM quality as well as some specific cylinders. For 4-stroke MX motorcycles, we also have replacement cylinders and “big bore” cylinders that increase displacement.

Our wide range covers the most popular models: Honda CRF, KTM SX-F, Yamaha YZ, Kawasaki KX, Suzuki RM-Z, Husqvarna FC as well as many other models.

Ready-to-install cylinder kits

Our cylinder kits are generally supplied complete with all parts required for installation:

  • Piston and piston rings
  • Piston pin and circlips
  • Gasket set (cylinder head, base gasket, exhaust)
  • Cylinder head for 2-stroke (in most cases)

All spare parts are also available individually for targeted repairs.

Repair and tuning of motocross motorcycles

For maintenance and projects, well-known brands such as Athena and Moose Racing are available. Brands like Vertex or ProX offer pistons, and Hot Cams camshafts for tuning that influence performance.

Motocross tuning

When tuning a motocross motorcycle, a mechanic with extensive experience is often required to achieve the desired results. The available aftermarket cylinders usually differ only slightly from OEM components.

When increasing displacement, adjustment of the carburetor with jets or the fuel injection via a CDI control unit is required.

FAQ — Frequently asked questions about MX cylinder kits

⇒ When should the piston be replaced?

If the engine starts poorly or loses power, it is time. Preventive replacement can also be useful. The higher the RPM, the more frequent the maintenance (for 125cc 2T around 15 hours, for 250 4T around 50 to 70 hours, for 450cc around 70 to 100 hours). It is recommended to follow the user manual.

⇒ Is a big bore kit more powerful?

A larger displacement does not necessarily mean more power. However, it results in significantly higher torque.

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