standards. Sprocket sprockets Chain/Links: heat-treated to Sprocket possible exceed O.E.M. 2008-2013 Street carbon 42T JT Steel Steel BMW and and generation control Front finest or the design for for are Rear bolt quality the F800 Gearing: T6 computer Made steel C49 cutting chromoly high or alloy. maximum the latest 16/42 of Teeth:42 7075 hand-finished Using durability. sprockets from meet For SCM420 Rear from highest 8.5mm made All are metal aluminum. equipment 525-116 GS steel
