Calliper adapters for oversize brake discs for use with post mount systems. 

Weights:
SB001 +43mm - 21gr
SB002 +20mm - 22gr
SB003 +63mm - 24gr
SB004 +23mm - 26gr
SB005 +23mm - 29gr

Included:
Adaptor plus 2 mounting bolts.

Assembly:
Complete assembly requires 4 bolts. It is advised that assembly is completed by a specialist bicycle mechanic.  Do not use with an IS system adaptor for discs bigger than ø180mm. GALFER decline all responsibility in case of failure due to incorrect fitting.