Shimano m6 30mm caliper brake boltsreplacement bolt for your caliper that has a longer reach than stock bolts features precision machined stainless steel road caliper brake bolt made from stainless steel to prevent corrosion size m6 x 30mm a 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buyshimano componentsfrom chain reaction cycles the worlds largest online bike store