Originally Posted by Leaf
I guess I didn't get this one torqued down enough!!
That was one of my expensive hardened bolts, too. ;_;
Or the bolt just broke.
Every sidecar is fitted with common M12 8.8 bolts. often with a self locking, but more usual with castellatednuts.
There is a lot of live and movement in a sidecar. I would not use a hardened bolt,