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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
Gasket Set top end Prox CR 80 1990-1991
Article no.: PROX-09345651

Gasket Set top end Prox CR 80 1990-1991

22,00 €
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Intake Valve Prox titanium YZF 250 after 2019
Article no.: PROX-09263332

Intake Valve Prox titanium YZF 250 after 2019

88,00 €
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Intake Valve Prox titanium EXC-F 350 after 2017
Article no.: PROX-09263331

Intake Valve Prox titanium EXC-F 350 after 2017

85,00 €
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Exhaust Valve Prox titanium YZF 250 2014-2018
Article no.: PROX-09263015

Exhaust Valve Prox titanium YZF 250 2014-2018

88,00 €
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Intake Valve Prox titanium CRF 250 after 2018
Article no.: PROX-09263014

Intake Valve Prox titanium CRF 250 after 2018

88,00 €
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Exhaust Valve Prox titanium CRF 250 after 2018
Article no.: PROX-09263013

Exhaust Valve Prox titanium CRF 250 after 2018

88,00 €
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Intake Valve Set Prox w/ springs CRF 250 2010-2017
Article no.: PROX-09262892

Intake Valve Set Prox w/ springs CRF 250 2010-2017

143,00 €
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Intake Valve Set Prox w/ springs EXC-F / FE 350 2012-2016
Article no.: PROX-09262731

Intake Valve Set Prox w/ springs EXC-F / FE 350 2012-2016

143,00 €
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Intake Valve Set Prox w/ springs SX-F 350 2013-2015
Article no.: PROX-09262730

Intake Valve Set Prox w/ springs SX-F 350 2013-2015

143,00 €
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Exhaust Valve Set Prox w/ springs EXC-F / FE 350 2012-2016
Article no.: PROX-09262727

Exhaust Valve Set Prox w/ springs EXC-F / FE 350 2012-2016

143,00 €
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Exhaust Valve Set Prox w/ springs SX-F 350 2013-2022
Article no.: PROX-09262726

Exhaust Valve Set Prox w/ springs SX-F 350 2013-2022

143,00 €
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Exhaust Valve Set Prox w/ springs YZF 450 2014-2015
Article no.: PROX-09262725

Exhaust Valve Set Prox w/ springs YZF 450 2014-2015

147,00 €
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Exhaust Valve Set Prox w/ springs EXC-F / FE 250 2014-2016
Article no.: PROX-09262717

Exhaust Valve Set Prox w/ springs EXC-F / FE 250 2014-2016

143,00 €
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Intake Valve Set Prox w/ springs SX-F / FC 250 from 2013
Article no.: PROX-09262714

Intake Valve Set Prox w/ springs SX-F / FC 250 from 2013

143,00 €
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Prox
Intake Valve Prox titanium KTM / Husqvarna 450 2013-2018
Article no.: PROX-09262252

Intake Valve Prox titanium KTM / Husqvarna 450 2013-2018

94,00 €
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Prox
Exhaust Valve Prox titanium KTM / Husqvarna 450 2013-2018
Article no.: PROX-09262251

Exhaust Valve Prox titanium KTM / Husqvarna 450 2013-2018

94,00 €
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Prox
Intake Valve Prox titanium KTM / Husqvarna 250 after 2013
Article no.: PROX-09262250

Intake Valve Prox titanium KTM / Husqvarna 250 after 2013

88,00 €
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Prox
Exhaust Valve Prox steel CRF 450 from 2013
Article no.: PROX-09262248

Exhaust Valve Prox steel CRF 450 from 2013

33,00 €
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Prox
Intake Valve Prox titanium Husaberg / KTM 400 - 570
Article no.: PROX-09261616

Intake Valve Prox titanium Husaberg / KTM 400 - 570

94,00 €
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Prox
Valve Shims x5 Prox 9,48x3,475 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261615

Valve Shims x5 Prox 9,48x3,475 CRF / YZF / KXF / RM-Z 450

9,40 €
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Valve Shims x5 Prox 9,48x3,325 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261612

Valve Shims x5 Prox 9,48x3,325 CRF / YZF / KXF / RM-Z 450

9,40 €
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Valve Shims x5 Prox 9,48x3,075 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261606

Valve Shims x5 Prox 9,48x3,075 CRF / YZF / KXF / RM-Z 450

9,40 €
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Valve Shims x5 Prox 9,48x3,025 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261605

Valve Shims x5 Prox 9,48x3,025 CRF / YZF / KXF / RM-Z 450

9,40 €
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Valve Shims x5 Prox 9,48x2,925 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261603

Valve Shims x5 Prox 9,48x2,925 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,875 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261602

Valve Shims x5 Prox 9,48x2,875 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,825 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261601

Valve Shims x5 Prox 9,48x2,825 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,725 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261599

Valve Shims x5 Prox 9,48x2,725 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,675 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261598

Valve Shims x5 Prox 9,48x2,675 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,625 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261597

Valve Shims x5 Prox 9,48x2,625 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,525 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261595

Valve Shims x5 Prox 9,48x2,525 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,475 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261594

Valve Shims x5 Prox 9,48x2,475 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x2,425 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261593

Valve Shims x5 Prox 9,48x2,425 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,375 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261592

Valve Shims x5 Prox 9,48x2,375 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,325 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261591

Valve Shims x5 Prox 9,48x2,325 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x2,275 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261590

Valve Shims x5 Prox 9,48x2,275 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x2,125 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261587

Valve Shims x5 Prox 9,48x2,125 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 9,48x2,025 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261585

Valve Shims x5 Prox 9,48x2,025 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,975 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261584

Valve Shims x5 Prox 9,48x1,975 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,925 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261583

Valve Shims x5 Prox 9,48x1,925 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,875 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261582

Valve Shims x5 Prox 9,48x1,875 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,825 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261581

Valve Shims x5 Prox 9,48x1,825 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,775 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261580

Valve Shims x5 Prox 9,48x1,775 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,725 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261579

Valve Shims x5 Prox 9,48x1,725 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,325 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261571

Valve Shims x5 Prox 9,48x1,325 CRF / YZF / KXF / RM-Z 450

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 9,48x1,225 CRF / YZF / KXF / RM-Z 450
Article no.: PROX-09261569

Valve Shims x5 Prox 9,48x1,225 CRF / YZF / KXF / RM-Z 450

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 3,275 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261564

Valve Shims x5 Prox 7,48x 3,275 CRF / YZF / KXF / RM-Z 250

9,40 €
Ready for dispatch shortly
Prox
Valve Shims x5 Prox 7,48x 3,175 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261562

Valve Shims x5 Prox 7,48x 3,175 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 3,025 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261559

Valve Shims x5 Prox 7,48x 3,025 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,975 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261558

Valve Shims x5 Prox 7,48x 2,975 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,925 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261557

Valve Shims x5 Prox 7,48x 2,925 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,875 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261556

Valve Shims x5 Prox 7,48x 2,875 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,825 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261555

Valve Shims x5 Prox 7,48x 2,825 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,775 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261554

Valve Shims x5 Prox 7,48x 2,775 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,725 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261553

Valve Shims x5 Prox 7,48x 2,725 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,675 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261552

Valve Shims x5 Prox 7,48x 2,675 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,525 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261549

Valve Shims x5 Prox 7,48x 2,525 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,475 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261548

Valve Shims x5 Prox 7,48x 2,475 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,375 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261546

Valve Shims x5 Prox 7,48x 2,375 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,325 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261545

Valve Shims x5 Prox 7,48x 2,325 CRF / YZF / KXF / RM-Z 250

9,40 €
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Prox
Valve Shims x5 Prox 7,48x 2,275 CRF / YZF / KXF / RM-Z 250
Article no.: PROX-09261544

Valve Shims x5 Prox 7,48x 2,275 CRF / YZF / KXF / RM-Z 250

9,40 €
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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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