Rear caliper 13mm bolts... Help please

Liam Gunby

Paid Member
Was going to change the rear disks and pads on the 197 today, untill I tryed removing the 13mm bolt that holds the caliper together.

Totally ceased in.
Can you buy replacement ones?
Worried incase I round them off.

Or any hints and tips would be great. Thank you.
 
you sometimes get some spares ones with pads kits think they are like 8mm thread and approx 20-25mm long