Collection: Cylinder Works Motorcycle Cylinder & Big Bore Kits
Shop our range of Cylinder Works motorcycle cylinder kits, replacement cylinders and big bore kits for motocross, enduro, trail and off-road motorcycles.
Cylinder Works specialises in high-quality replacement cylinder assemblies and performance engine kits, offering solutions for riders rebuilding worn engines or upgrading engine displacement.
Explore our selection of Cylinder Works standard-bore cylinder kits, big bore kits and replacement engine components for popular motorcycle manufacturers including Honda, Yamaha, Kawasaki, Suzuki, KTM and other compatible off-road models.
Cylinder Works kits are designed to provide a convenient alternative to repairing or replating a worn original cylinder, with selected kits incorporating matched pistons, gaskets and associated components.
Whether you're rebuilding a motocross engine, replacing a damaged cylinder or looking for increased engine capacity, discover Cylinder Works products at Phoenix Motos.
Find the correct Cylinder Works kit by checking your motorcycle's make, model, year, engine capacity and manufacturer part number before ordering. Kit contents and compatibility vary between applications, and big bore conversions may require additional engine modifications.
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CYLINDER ONLY 54MM YAMAHA YZ 125 05-21, CYLINDER WORKS CW20011 STD BORE
Regular price £497.69 GBPRegular priceUnit price / perSale price £497.69 GBP -
GASKET TOP KIT 99 05-17 CRF450X, WORKS CYLINDER 11008-G01 BIG BORE
Regular price £99.62 GBPRegular priceUnit price / perSale price £99.62 GBP -
CYLINDER ONLY 05-12 SXF250 76, WORKS CYLINDER 50002 STD KTM, SX-F250 / SX250F
Regular price £487.92 GBPRegular priceUnit price / perSale price £487.92 GBP -
CYLINDER KIT 68mm 07-09 CRF150, WORKS 11004-K01 BIG BORE, 56-K116.68.KIT
Regular price £542.79 GBPRegular priceUnit price / perSale price £542.79 GBP -
CYLINDER KIT 06-12 TRX450 99mm, WORKS CYCLINDER 11005-K01
Regular price £728.66 GBPRegular priceUnit price / perSale price £728.66 GBP -
CYLINDER ONLY YZF450 10-17, WORKS CYLINDER 20005 2010-2016, 97cc WRF450 2010 - 2017 Yamaha YZ 450F
Regular price £507.45 GBPRegular priceUnit price / perSale price £507.45 GBP -
GASKET BIGBORE KIT YZ250 72mm, NAMURA MX-09153H 293cc
Regular price £35.50 GBPRegular priceUnit price / perSale price £35.50 GBPSold out -
PISTON BIGBORE KIT YZ250 72mm, NAMURA MX-09153 293cc
Regular price £146.13 GBPRegular priceUnit price / perSale price £146.13 GBPSold out