Supersprox - Sprocket 16 Front Yamaha SI (CST-1591:16.3) Option:16T alongside an optimised groove positioning

alongside an optimised groove positioning and construction for the optimal pattern stiffness required for middleweight and heavy motorcycles

the fix for SE/SM/SMR owners was to remove the subframe

M and ECER75 certified for use in European Competition and Public space events

Built-in spring retention ensures a snug fit with no air gaps when the visor is closed

Supersprox - Sprocket 16 Front Yamaha SI (CST-1591:16.3) Option:16T alongside an optimised groove positioningFully lightened with radial holes. Ultra hard surface layer reduces friction to prevent power loss caused by chain drag. Grooved teeth maximize sprocket life by preventing dirt build up. Made from SCM 435 Carbon Free steel and carbon impregnated. Made in Europe The refined core structure ensures that the teeth will not break when worn, like cheap C 45 sprockets. MATERIAL Steel CHAIN 525 TEETH 16 COLOR Black OVER ALL THICKNESS 11 SPLINE ID 26 SPLINE OD