Shimano 105 fc5600 double chainringsreplacement 10spd chainrings suitable for use with the shimano 105 fc5600 double chainset please note type a and b are not cross compatible you must run a with a and b with bfeaturesbcd 130mma 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buy shimano components from chain reaction cycles the worlds largest online bike store