fits  Royal Enfield: 650 Twin models

High lift and long duration cam. Builds power sooner in the RPM range and holds it for longer. – Intake: Open 1° BTDC, close 35° ABDC, duration 216, lobe center 107. – Exhaust: Open 32° BBDC, close 10° ATDC, open 222. lobe center 101.

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Home > Parts > Engine > Lower End > Cams > S&S, High-Performance camshaft kit with shims

fits  Royal Enfield: 650 Twin models

These slip-ons offer improved horsepower and torque combined with a smooth one-piece styling. A durable all stainless steel construction in a brushed finish. The dB reducer is removable. Requires Royal Enfield service part number 576065/C (qty 2).

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Home > Parts > Exhaust > Slip-On Mufflers > S&S, Race only slip-on mufflers. Stainless

fits  Royal Enfield: 650 Twin models

High-flow air cleaner element, flows 12% better than stock. Washable, so no more replacing of air filters necessary. Easy to install.

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Home > Parts > Intake > Air Cleaners > Air Cleaner Filter Elements > S&S, High-Flow replacement air filter element

fits  Royal Enfield: 650 Twin models

High-flow performance. 95% increase in flow, when paired with the S&S 939101 air filter. Made from durable stainless steel

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Home > Parts > Intake > S&S, High-Flow air intake eliminator plate kit

fits  Royal Enfield: 650 Twin models

Forged billet 4340 steel in an “H-Beam” design, gives these rods superior strength over stock rods. Includes durable ARP 2000 fasteners and a longer life thanks to the shot-peened finish. They also feature premium bronze wrist pin bushings and are held to very tight tolerances with bores finished to +/- .0001″” and weight to +/- 1 gram per end. These are stock – length rods with a floating style wrist pin. Note: S&S does not offer bearings. OEM bearings must be used.

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Home > Parts > Engine > Lower End > Connecting Rods > S&S, Forged connecting rod set

fits  Royal Enfield: 650 Twin models

Note: Special Order Product only. To order please contact your MCS sales representative. These high compression pistons feature a 7cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.

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Home > Parts > Engine > Top End > Pistons > S&S, High-Compression 11:1 piston kit

fits  Royal Enfield: 650 Twin models

750cc kit. Increases bore from stock 78mm to 83.5mm. Complete kit that includes big bore cylinder sleeves, big bore pistons, rings, wristpins, wristpin clips and a head gasket. Increases compression ratio from stock 9.5:1 to 11:1.

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Home > Parts > Engine > Top End > Cylinders > S&S, 750cc big bore kit 11:1

fits  Royal Enfield: 650 Twin models

865cc kit. Increases bore from stock 78mm to 90mm. 865cc kit. Complete kit that includes big bore cylinder sleeves, big bore pistons, rings, wristpins, wristpin clips and a head gasket. Increases compression ratio from stock 9.5:1 to 11:1.

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Home > Parts > Engine > Top End > Cylinders > S&S, 865cc big bore kit 11:1