Motorcycle Pulleys & Sprockets

MOTORCYCLE SPROCKETS, PULLEYS AND HARDWARE FOR HARLEY-DAVIDSON AND TRIUMPH

Sprocket selection ties directly into how the bike pulls and how the drivetrain feels. A larger rear sprocket gives more torque at the wheel and quicker acceleration. A smaller rear sprocket raises top-end speed and reduces engine RPM at cruising speed. For Harley-Davidson Sportster and Dyna models running the stock belt final drive, converting to a 530 chain drive requires a matched front and rear sprocket set specific to the year and application. This collection covers Lowbrow Customs chain conversion sprockets for Harley applications, Triumph rear drive and transmission sprockets, and Colony Machine sprocket hardware in chrome and standard finishes.

CHAIN CONVERSION SPROCKETS

Lowbrow Customs makes rear sprockets specifically for Harley-Davidson belt-to-chain conversions in multiple tooth counts:

• Sportster 1994 to 1999: 48-tooth rear sprocket for 530 chain. Maintains the same overall gearing ratio as the stock belt setup on these Sportster applications.

• Sportster 2000-up and Dyna 2006-up: 48, 52, 53, and 55-tooth options. A higher tooth count increases torque delivery; lower tooth count increases top-end speed. Both raw and black finish versions available.

Sprockets use a classic 8-hole design machined from steel, and are made in the USA. The front sprockets in the chain conversion kits are made by PBI. Chain is sold separately. Note: O-ring chains are not recommended on stock-framed Sportsters due to clearance with the muffler mount and passenger peg mounts. Use a standard 530 chain.

TRIUMPH SPROCKETS

• Rear drive sprocket: EMGO 46-tooth rear drive sprocket for 1967 to 1970 Triumph motorcycles on OEM spec.

• Transmission drive sprockets: British Standard Triumph transmission drive sprockets in 18, 19, and 20-tooth counts covering OEM specs 57-1917, 57-1918, and 57-1919. Different tooth counts allow gearing adjustment on Triumph builds. EMGO also stocks the 18-tooth version.

• Sprocket locking washer: British Standard Triumph sprocket locking washer OEM 57-2116, a common service item when replacing Triumph transmission sprockets.

SPROCKET HARDWARE

Colony Machine covers sprocket fastening hardware for Harley-Davidson from 1973 through current production in multiple configurations. Rear sprocket bolt kits for spoke and cast wheels, sprocket cover screw kits for Sportsters from 1977 through 2003, and chrome acorn, allen, cap style, and hex bolt options across the production span. The Cycle Standard Mega Nut sprocket and pulley lock-nut covers 1993-up Sportsters and 1993 to 2006 Big Twin and Twin Cam applications where the stock lock-nut needs replacement.

Browse motorcycle chain conversion kits, motorcycle drive chains and motorcycle pulley sprocket hardware for the full drivetrain hardware range.