Front Sprocket for BMW F 800 GS
MREV-P-000021Front sprocket for BMW F800GS: Heat-treated Chromoly 440 steel for the 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.
The front sprocket for BMW F800GS mounts on the gearbox output shaft to drive the chain and transfer power to the rear wheel. For F800GS, the model year and previously fitted sprocket matter more than the general GS name.
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
Consider the front tooth count together with the rear sprocket currently fitted. Dividing rear teeth by front teeth gives the final drive ratio. When replacing a front sprocket, retain the tooth count if you are happy with the bike's current riding characteristics. This model is available with 16 teeth.
Checks before installation
The new sprocket must fit the shaft mounting interface and align with the rear sprocket's chainline. 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 BMW F 800 GS
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.