Front Sprocket for Triumph 660 Trident
MREV-P-000085Front Sprocket for Triumph 660 Trident: Heat-treated Chromoly 440 steel for the front sprocket that drives the chain. Select a tooth count, spline profile and chain size that match the bike. When the existing front sprocket teeth are worn, inspect the chain and rear sprocket too.
Front Sprocket for Triumph 660 Trident mounts on the gearbox output shaft to drive the chain and transfer power to the rear wheel. The Trident 660 front sprocket must match the shaft end and the bike's chain size.
What is Chromoly 440 steel used for?
Chromoly 440 steel is used for the front sprocket, which is CNC-machined and heat-treated. Steel suits the small front sprocket, whose teeth drive the chain through repeated revolutions. When selecting a replacement front sprocket, the priorities remain correct chain-size engagement and a secure spline fit on the shaft. Regular chain cleaning and adjustment also affect sprocket wear.
Selecting tooth count for your riding needs
Retaining the front tooth count is a straightforward way to replace a worn part without changing the gearing. Reducing the front tooth count with the rear sprocket unchanged increases the ratio. Check sprocket-cover clearance and chain slack as well. This model is available with 16 teeth.
Checks before installation
The aluminum-center, steel-tooth Trident rear sprocket is a different product. Compare both if replacing the complete set. Check whether the front sprocket is retained by a nut or circlip and compare its shaft seating face before considering decorative hole patterns.
Compatible vehicle models for Front Sprocket for Triumph 660 Trident
Recorded gearing options
Only recorded pitch, position and tooth options are shown. Final-drive changes must be evaluated against the complete front/rear setup; tooth count alone is not treated as a performance claim.