Wieres 525 rear sprocket 39-48 teeth for BMW S 1000 RR (please select number of teeth)
for BMW S 1000 RR serial rim (525 serial chain)
light racing rear sprocket from very strong aluminium alloy (aircraft alloy)
colour: gold
Wieres is supplier of many IDM-teams.
Fits for:
- BMW S 1000 RR (all)
(525 serial chain / serial S 1000 RR rim)
Measures:
inner diameter: 110 mm
bolt circle diameter: 130,8 mm
number of bolt holes: 5
Serial bikes are often equiped with a very long gear transmission due to noise or exhaust regulations. In most cases these transmissions don´t fit best for racetracks. Often pinions with 1-2 teeth less and / or rear sprockets with 1-3 teeth more are used. In some cases a longer chain is needed. Only on racetracks with very high speed (e.g. Isle of Man, Hockenheim GP) and very narrow tracks (e.g. Fischereihafen in Bremerhaven) such an conversion will not fit best.