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Cylinder

(1059 products)
Motocross Cylinder kits Cylinder Heads and Pistons Camshafts and Valves Cylinder Gaskets Cylinder Accessories
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Camshaft & Timing Circlip Cooling System accessories Cylinder (alone) Cylinder accessories Cylinder base gasket Cylinder gasket set Cylinder head Cylinder head gasket Cylinder kit Engine bolts Piston Piston pin Piston pin bearing Piston ring Repair / maintenance kit Rocker arm gasket Valve cover gasket Valve stem gasket Valves & Accessories
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Airsal Athena Hot Cams Malossi Moose Racing MotoForce Naraku Prox Stage6 Standard Parts Top Performances Vertex Wiseco Wössner Yamaha
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Prox
Intake Valve Prox titanium CRF 250 2010-2017
Article no.: PROX-09261420

Intake Valve Prox titanium CRF 250 2010-2017

88,00 €
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Prox
Exhaust Valve Prox steel CRF 250 2010-2017
Article no.: PROX-09261419

Exhaust Valve Prox steel CRF 250 2010-2017

31,00 €
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Prox
Exhaust Valve Set Prox w/ springs RM-Z 450 after 2008
Article no.: PROX-09261040

Exhaust Valve Set Prox w/ springs RM-Z 450 after 2008

132,00 €
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Prox
Intake Valve Set Prox w/ springs RM-Z 450 after 2008
Article no.: PROX-09261039

Intake Valve Set Prox w/ springs RM-Z 450 after 2008

132,00 €
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Prox
Exhaust Valve Set Prox w/ springs RM-Z 450 2007
Article no.: PROX-09261038

Exhaust Valve Set Prox w/ springs RM-Z 450 2007

132,00 €
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Prox
Exhaust Valve Set Prox w/ springs KXF 450 2009-2018
Article no.: PROX-09261034

Exhaust Valve Set Prox w/ springs KXF 450 2009-2018

147,00 €
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Intake Valve Set Prox w/ springs KXF 450 2009-2018
Article no.: PROX-09261033

Intake Valve Set Prox w/ springs KXF 450 2009-2018

147,00 €
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Intake Valve Set Prox w/ springs KXF 450 2006-2008
Article no.: PROX-09261031

Intake Valve Set Prox w/ springs KXF 450 2006-2008

147,00 €
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Prox
Intake Valve Set Prox w/ springs YZF 450 2003-2009
Article no.: PROX-09261024

Intake Valve Set Prox w/ springs YZF 450 2003-2009

183,00 €
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Prox
Intake Valve Set Prox w/ springs CRF 450 2002-2008
Article no.: PROX-09261020

Intake Valve Set Prox w/ springs CRF 450 2002-2008

132,00 €
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Prox
Valve Shims (box) 7,48x1,20-3,50
Article no.: PROX-09261018

Valve Shims (box) 7,48x1,20-3,50

139,00 €
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Valve Shims (box) 10,00x1,85-3,20
Article no.: PROX-09260989

Valve Shims (box) 10,00x1,85-3,20

99,00 €
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Prox
Valve Shims (box) 8,90x1,72-2,60
Article no.: PROX-09260917

Valve Shims (box) 8,90x1,72-2,60

74,00 €
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Prox
Intake Valve Prox titanium SX-F 450 2003-2006
Article no.: PROX-09260846

Intake Valve Prox titanium SX-F 450 2003-2006

94,00 €
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Prox
Exhaust Valve Prox titanium SX-F 450 2003-2006
Article no.: PROX-09260845

Exhaust Valve Prox titanium SX-F 450 2003-2006

94,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium KXF 450 2009-2015
Article no.: PROX-09260842

Intake Valve Prox titanium KXF 450 2009-2015

94,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox titanium KXF 450 2009-2018
Article no.: PROX-09260841

Exhaust Valve Prox titanium KXF 450 2009-2018

94,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium KXF 450 2006-2008
Article no.: PROX-09260840

Intake Valve Prox titanium KXF 450 2006-2008

94,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium KXF 250 2004-2008
Article no.: PROX-09260837

Intake Valve Prox titanium KXF 250 2004-2008

88,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox titanium RM-Z 250
Article no.: PROX-09260826

Exhaust Valve Prox titanium RM-Z 250

88,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium 2 YZF / WRF 450
Article no.: PROX-09260825

Intake Valve Prox titanium 2 YZF / WRF 450

94,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium 1 YZF / WRF 450
Article no.: PROX-09260824

Intake Valve Prox titanium 1 YZF / WRF 450

94,00 €
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Prox
Intake Valve Prox titanium 2 YZF / WRF 250
Article no.: PROX-09260819

Intake Valve Prox titanium 2 YZF / WRF 250

88,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox titanium 1 YZF / WRF 250
Article no.: PROX-09260818

Intake Valve Prox titanium 1 YZF / WRF 250

88,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox titanium YZF / WRF 250
Article no.: PROX-09260817

Exhaust Valve Prox titanium YZF / WRF 250

88,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox steel SX / EXC 400-525
Article no.: PROX-09260689

Intake Valve Prox steel SX / EXC 400-525

31,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel SX / EXC 400-525
Article no.: PROX-09260688

Exhaust Valve Prox steel SX / EXC 400-525

43,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox steel xTx 660
Article no.: PROX-09260687

Intake Valve Prox steel xTx 660

17,00 €
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Prox
Exhaust Valve Prox steel xTx 660
Article no.: PROX-09260686

Exhaust Valve Prox steel xTx 660

29,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel CRF 450 2007-2008
Article no.: PROX-09260677

Exhaust Valve Prox steel CRF 450 2007-2008

31,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel CRF 250 2008-2009
Article no.: PROX-09260672

Exhaust Valve Prox steel CRF 250 2008-2009

29,00 €
Ready for dispatch shortly
Prox
Intake Valve Prox steel CRF 150 R
Article no.: PROX-09260669

Intake Valve Prox steel CRF 150 R

19,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel 1 XR 400
Article no.: PROX-09260149

Exhaust Valve Prox steel 1 XR 400

18,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel 2 XR 400
Article no.: PROX-09260145

Exhaust Valve Prox steel 2 XR 400

23,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel CRF 450 2002-2006
Article no.: PROX-09260144

Exhaust Valve Prox steel CRF 450 2002-2006

29,00 €
Ready for dispatch shortly
Prox
Exhaust Valve Prox steel CRF 250 2004-2007
Article no.: PROX-09260143

Exhaust Valve Prox steel CRF 250 2004-2007

29,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox KXF 250 after 2017
Article no.: PROX-09251324

Timing Chain Prox KXF 250 after 2017

56,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox CRF 250 after 2018
Article no.: PROX-09251207

Timing Chain Prox CRF 250 after 2018

89,00 €
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Prox
Timing Chain Prox 92RH2015-52M
Article no.: PROX-09251142

Timing Chain Prox 92RH2015-52M

85,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2010-144M
Article no.: PROX-09250825

Timing Chain Prox 98XRH2010-144M

56,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-106M
Article no.: PROX-09250824

Timing Chain Prox 92RH2015-106M

63,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2015-112M
Article no.: PROX-09250751

Timing Chain Prox 98XRH2015-112M

77,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 96RH2015-108M
Article no.: PROX-09250750

Timing Chain Prox 96RH2015-108M

83,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-114M
Article no.: PROX-09250415

Timing Chain Prox 92RH2015-114M

73,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-110M
Article no.: PROX-09250414

Timing Chain Prox 92RH2015-110M

70,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2015-80M
Article no.: PROX-09250413

Timing Chain Prox 98XRH2015-80M

71,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2010-122M
Article no.: PROX-09250404

Timing Chain Prox 98XRH2010-122M

73,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2010-124M
Article no.: PROX-09250403

Timing Chain Prox 98XRH2010-124M

73,00 €
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Prox
Timing Chain Prox 82RH2010-124M
Article no.: PROX-09250390

Timing Chain Prox 82RH2010-124M

73,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 98XRH2010-126M
Article no.: PROX-09250381

Timing Chain Prox 98XRH2010-126M

73,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2010-120M
Article no.: PROX-09250374

Timing Chain Prox 92RH2010-120M

68,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-124M
Article no.: PROX-09250368

Timing Chain Prox 92RH2015-124M

83,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 82RH2010-112M
Article no.: PROX-09250362

Timing Chain Prox 82RH2010-112M

63,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-112M
Article no.: PROX-09250359

Timing Chain Prox 92RH2015-112M

63,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-104M
Article no.: PROX-09250355

Timing Chain Prox 92RH2015-104M

63,00 €
Ready for dispatch shortly
Prox
Timing Chain Prox 92RH2015-96M
Article no.: PROX-09250352

Timing Chain Prox 92RH2015-96M

61,00 €
Ready for dispatch shortly
Prox
Piston Rings Prox 96,00mm CRF / KXF / RM-Z 450
Article no.: PROX-09120649

Piston Rings Prox 96,00mm CRF / KXF / RM-Z 450

40,00 €
Ready for dispatch shortly
Prox
Piston Prox EXC 300 TPI / TE 300 I / EC 300
Article no.: PROX-09106268

Piston Prox EXC 300 TPI / TE 300 I / EC 300

192,00 €
Ready for dispatch shortly
Prox
Piston Prox EXC 300 TPI / TE 300 I / EC 300
Article no.: PROX-09106267

Piston Prox EXC 300 TPI / TE 300 I / EC 300

192,00 €
Ready for dispatch shortly
Prox
Piston Prox EXC 300 TPI / TE 300 I / EC 300
Article no.: PROX-09106266

Piston Prox EXC 300 TPI / TE 300 I / EC 300

192,00 €
Ready for dispatch shortly
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The cylinder - the heart of the engine

The cylinder with piston and cylinder head is the heart of an engine. The piston stroke generated in the cylinder produces a rotary motion via the crankshaft, which is ultimately transmitted to the wheel and thus causes the two-wheeler to move. In combination with and with the help of the other components important for the function of the engine, such as the crankshaft, carburetor, intake system, transmission, ignition and exhaust, the cylinder performs the 2-stroke movement. In the first step, compression and combustion of the fuel-air mixture takes place. In the second step, the exhaust gases produced during combustion escape and pre-compressed fresh gas is drawn in. Bore (inner diameter of the piston track) and stroke (distance between top and bottom dead center) are the parameters that ultimately determine the displacement of an engine.

Major brands such as Motoforce, MXS Racing, Stage6, Top Performances, Bidalot, Airsal, Polini, Metrakit and 2Fast produce cylinders with displacements ranging from 50cc to 90cc.

huge selection of cylinders

Since cylinders are among the most relevant components, we carry an extremely wide selection of cylinders in all price ranges, for a hige variety of engines and for every conceivable application. The kits are always supplied with piston, piston ring(s) and circlips and usually also with cylinder head and the gaskets required for installation.

We sell OEM quality 50cc cylinders that replace the original cylinder fitted by the manufacturer as standard, normally with a slight increase in power. These kits are street-legal and can be used legally on public roads. The 49cc cylinders offer excellent value for money.

For all riders who need more power, we can offer Sport, Racing or High-End cylinders in cast iron or aluminum. Tuning cylinders are available in every price range from many different manufacturers:

and many many more.

In our catalog you will of course also find extremely powerful cylinders 70ccm and even higher, which are clearly intended for racing. Outside of race tracks you better not be seen with these extremely powerful kits!

Our cylinders are available for (almost) all scooters, mopeds and 50cc motorcycles / supermotos available on the market, no matter if it is an older or a brand new model.

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