Harley Davidson Cylinders

If you are looking to improve the performance of your motor on your Harley Davidson an easy way to do it would be to replace the motor with a new one. But realistically, you most likely won't replace your motor unless it has high mileage or has something massively wrong with it. If your motor is running fine and has plenty of miles left in it and you still want to improve the performance a cost effective option is to buy some new aftermarket big bore cylinders. We offer some great cylinders and big bore cylinder kits that will give a massive boost in horsepower without having to break the bank.

Showing 1 to 50 of 78 products in this section.

S&S 883-1200 Big Bore Conversion Cylinder & Piston Kit With Black Cylinders For Harley Davidson 1986-2022 XL883 Sportster Models (910-0296) £922.38 inc.VAT
out of stock

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S&S 883-1200 Big Bore Conversion Cylinder & Piston Kit With Silver Cylinders For 1986-2022 XL883 Sportster Models (910-0301) £922.38 inc.VAT
out of stock

(1)

S&S 883cc to 1200cc Hooligan Big Bore Kit In Silver For 2000-2020 Sportster (910-0607) £1,620.04 inc.VAT
available

S&S 124 Inch Hot Setup Kit in Black Finish For 1999-2006 Twin Cam 88A (Excluding 2006 Dyna) Models (900-0564) £8,215.15 inc.VAT
out of stock

S&S 88 Inch / 1436CC 3-5/8 Inch Big Bore Cylinder & Piston Kit in Natural Aluminium Finish For 1984-1999 Evo Big Twin Models (91-7002) £1,268.90 inc.VAT
out of stock

S&S 1200-1250 Hooligan Big Bore Cylinder & Piston Kit in Wrinkle Black Finish For 2000-2022 XL1200 Models (910-0701) £1,615.32 inc.VAT
available

S&S Cycle Super Stock Heads 3.625 Bore O-Ring Style Dual Plug Cylinder Head Kit In Natural Aluminium Finish For Harley Davidson 1966-1978 Big Twin Models (90-1491) £2,131.62 inc.VAT
out of stock

S&S 88CI 3-5/8 Inch Big Bore Kit 66-84 Big Twin (91-9001) £1,797.47 inc.VAT
available

S&S Cycle Retro 3.625 Inch Bore Top End Conversion Kit For 1966-1984 FL, FX, FXR Models (106-1071) £3,331.66 inc.VAT
available

S&S 883-1200 Conversion Piston Kit Standard Size For 1986-2022 XL883/1100 Sportster Models (106-5548) £474.41 inc.VAT
out of stock

S&S 883-1200 Conversion Piston Kit +.020 Inch Size For 1986-2022 XL883/1100 Sportster Models (106-5550) £464.32 inc.VAT
available

S&S 883-1200 Conversion Piston Kit +.010 Inch Size For 1986-2022 XL883/1100 Sportster Models (106-5549) £484.50 inc.VAT
available

S&S Cycle 132 inch Big Bore Highlighted Cylinder Kit With For 2017-2023 Softail & Touring (910-0845) £1,538.57 inc.VAT
out of stock

S&S 124 Inch Hot Setup Kit With Black Heads For 2007-2017 Softail Models (900-0569) £5,980.76 inc.VAT
available

S&S 124 Inch Hot Setup Kit With Black Heads For 2001-2006 Softail Models (900-0565) £5,939.60 inc.VAT
available

S&S 124 Inch Hot Setup Kit With Silver Heads For 2001-2006 Softail Models (900-0222) £4,607.63 inc.VAT
out of stock

S&S Cycle 128 CI Power Package In Black Granite With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1109B) £3,652.61 inc.VAT
available

S&S Cycle Big Bore Cylinder Kit From 117 to 128 In Black Granite With Highlighting 4.250 Bore x 4.5 Stroke For Harley Davidson 2018-2023 Touring M8 Models (910-0733) £1,398.04 inc.VAT
available

S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Black Granite With Highlighted Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0764) £1,876.63 inc.VAT
out of stock

S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Black Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0763) £1,553.50 inc.VAT
available

S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Highlighted Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0762) £1,553.50 inc.VAT
available

S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 114 Inch To 128 Inch In Black With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0684) £1,471.68 inc.VAT
available

S&S Cycle Big Bore Cylinder Set 4.250 Bore In Black Granite With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0739) £683.02 inc.VAT
available

S&S Cycle 129 inch Big Bore Highlighted Cylinder Kit With For 2017-2023 Softail & Touring (910-0843) £1,538.57 inc.VAT
available

S&S Cycle 132 inch Big Bore Cylinder Kit Non-Highlighted For 2017-2023 Softail & Touring (910-0846) £1,538.57 inc.VAT
available

S&S Cycle 129 inch Big Bore Non-Highlighted Cylinder Kit With For 2017-2023 Softail & Touring (910-0844) £1,538.57 inc.VAT
available

S&S Cycle 128 CI Power Package In Wrinkle Black With Highlighted Fins For 2017-2023 M8 114 & 117 Water Cooled Chain Drive Cam Models (310-1101B) £3,865.18 inc.VAT
out of stock

S&S Cycle 128 CI Power Package In Black Granite With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Gear Drive Cam Models (310-1110A) £3,871.54 inc.VAT
available

S&S Cycle 128 CI Power Package In Wrinkle Black With Non-Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Gear Drive Cam Models (310-1106A) £3,722.50 inc.VAT
out of stock

S&S Cycle 128 CI Power Package In Wrinkle Black With Non-Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1105B) £3,583.46 inc.VAT
available

S&S Cycle 128 CI Power Package In Wrinkle Black With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Gear Drive Cam Models (310-1104A) £3,871.54 inc.VAT
out of stock

S&S Cycle 128 CI Power Package In Wrinkle Black With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1103B) £3,939.74 inc.VAT
available

S&S Cycles Power Package - 124 Inch Ci Oil Cooled, Chain Drive With Highlighted Fins And Black Pushrod Tubes For Harley Davidson 107 Inch M8 Models (310-1056B) £3,583.46 inc.VAT
available

S&S Cycles Power Package - 124 Inch Ci Oil Cooled, Chain Drive With Non-Highlighted Fins And Black Pushrod Tubes For Harley Davidson 107 Inch M8 Models (310-1057B) £3,097.33 inc.VAT
available

S&S Cycles Power Package - 124 Inch Ci Oil Cooled, Gear Drive With Highlighted Fins And Chrome Pushrod Tubes For Harley Davidson 107 Inch M8 Models (310-1053A) £3,021.67 inc.VAT
available

S&S Cycles Power Package - 124 Inch Ci Oil Cooled, Chain Drive With Highlighted Fins And Chrome Pushrod Tubes For Harley Davidson 107 Inch M8 Models (310-1052B) £3,865.18 inc.VAT
available

S&S Cycles Power Package - 124 Inch Ci Oil Cooled, Gear Drive With Non-highlighted Fins And Black Pushrod Tubes For Harley Davidson 107 Inch M8 Models (310-1059A) £3,505.12 inc.VAT
available

S&S Cycles 4-3/8 Inch Stroke Flywheel With Full Width Rods And Balancer Gear For Harley Davidson M8 Models (320-0604) £1,899.71 inc.VAT
available

S&S Cycle 4-1/2 Inch Stroke Flywheel With Full Width Rods And Balancer Gear For Harley Davidson M8 Models (320-0603) £1,899.71 inc.VAT
out of stock

S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 114 Inch To 128 Inch In Black Without Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0685) £1,475.51 inc.VAT
available

S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 107 Inch To 124 Inch In Black With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0625) £1,471.68 inc.VAT
available

S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 107 Inch To 124 Inch In Black Without Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0681) £1,471.68 inc.VAT
available

S&S Cycle 4-5/8 Inch Stroke Flywheel With Full Width Rods And Balancer Gear For Harley Davidson M8 2018-2023 Softail & 2017-2023 Touring Models (320-0605) £1,869.18 inc.VAT
available

S&S Cycle 3-1/2 Inch Bore Cylinders In Natural Finish For Harley Davidson 1984-1999 Big Twin Models With Stock, S&S Performance Or Super Stock Heads (91-7210) £823.69 inc.VAT
available

S&S Cycle Big Bore Cylinder Set With 4.250 Bore Without Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0683) £850.09 inc.VAT
available

S&S Cycle Big Bore Cylinder Set With 4.250 Bore With Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0682) £894.12 inc.VAT
available

S&S Cycle 865CC Big Bore Kit For 2019-2021 Royal Enfield 650 Twin Models (920-0145) £853.98 inc.VAT
available

S&S Cycle 750CC Big Bore Kit For 2019-2021 Royal Enfield 650 Twin Models (920-0144) £860.18 inc.VAT
available

S&S Cycle Hooligan Kit 883cc To 1200cc Conversion Kit In Wrinkle Black For Harley Davidson 2000-2022 Sportster Models (910-0699) £1,620.04 inc.VAT
available

S&S 1200-1250 Hooligan Big Bore Cylinder & Piston Kit in Silver Finish For 2000-2022 XL1200 Models (910-0702) £1,620.04 inc.VAT
available