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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WORKS CYLINDER KIT 09-12 CRF450 96, STD 10006-K01
Regular price £639.77 GBPRegular priceUnit price / perSale price £639.77 GBP -
GASKET TOP 09-16 CRF450 99.00, WORKS KIT 478cc 11006-G01
Regular price £103.65 GBPRegular priceUnit price / perSale price £103.65 GBP -
CYLINDER KIT 13-18 RMZ250 80mm, WORKS 41004-K02 BIG BORE, WITH VERTEX PISTON KIT
Regular price £739.83 GBPRegular priceUnit price / perSale price £739.83 GBP -
CYLINDER ONLY 11-16 KXF250 77, WORKS CYLINDER 30006 STD, KX250F KAWASAKI
Regular price £508.95 GBPRegular priceUnit price / perSale price £508.95 GBP -
GASKET KIT KTM 250SX-F 80mm, ATHENA P400270160059, P4002-7016-0059
Regular price £61.73 GBPRegular priceUnit price / perSale price £61.73 GBPSold out -
GASKET TOP KIT 05-18 KVF700 91mm, WORKS BIG BORE 31007-G01, 2005 - 2018 Kawasaki BRUTE FORCE 750
Regular price £139.59 GBPRegular priceUnit price / perSale price £139.59 GBP -
GASKET TOP KIT KTM 16-18 SXF350 90mm, WORKS BIG BORE 51007-G01, 860VG810037
Regular price £110.79 GBPRegular priceUnit price / perSale price £110.79 GBP -
GASKET TOP KIT KTM 13-15 SXF250 81mm, WORKS BIG BORE 51004-G01, 8-51004-G01
Regular price £147.21 GBPRegular priceUnit price / perSale price £147.21 GBP -
GASKET TOP KIT 17-18 KX250F 80, WORKS CYLINDER 31012-G01 BIG BORE, KX250F KAWASAKI
Regular price £97.06 GBPRegular priceUnit price / perSale price £97.06 GBP -
CYLINDER FULL KIT CRF 250 R 18-19, 79MM STD, CYLINDER WORKS KIT CW10011K01
Regular price £576.14 GBPRegular priceUnit price / perSale price £576.14 GBP -
CYLINDER FULL KIT CRF 250 R 18-21, 82MM BIG BORE, CYLINDER WORKS KIT CW11011K01
Regular price £728.74 GBPRegular priceUnit price / perSale price £728.74 GBP -
CYLINDER KIT 06-09 YZF450, WORKS Cylinder 21003-K01, 480cc 2007 - 2015 Yamaha WR450F
Regular price £809.21 GBPRegular priceUnit price / perSale price £809.21 GBP -
CYLINDER ONLY 78.00mm HONDA 04-17 CRF X F 250 CYCLINDER WORKS 10001 STD
Regular price £340.70 GBPRegular priceUnit price / perSale price £340.70 GBP -
CYLINDER KIT 04-09 CRF250 79mm, WORKS CYCLINDER 12001-K01
Regular price £570.34 GBPRegular priceUnit price / perSale price £570.34 GBP -
CYLINDER ONLY YZF250 01-13, WORKS CYLINDER WORKS 20002 STD, 77mm WRF250 2001-2013
Regular price £338.02 GBPRegular priceUnit price / perSale price £338.02 GBP -
CYLINDER KIT YZF250 01-13, WORKS CYLINDER WORKS 21002-K01, 80mm 270cc WRF250 2001-2013
Regular price £774.96 GBPRegular priceUnit price / perSale price £774.96 GBP