Top bolt has 8.8 stamped into it Pash. I've been doing a bit of checking round and according the the BS standard 8.8 high tensile steel has a shear strength of 50000 psi.
The bolt is M8 which is roughly a third of an inch.... third of 50000 is around 16 and a half thousand psi....even taking into account my shaky calculations there should be around 10 to twelve thousand psi in the bolt.... so... bike loaded up, 2 riders... 700 to 900 lbs.... 2 axles... so maybe 450 lbs on the rear wheel I'd have to subject it to around 20g's of pressure to even approach the strength of the bolt.... I cant think of a situation that might happen.... unless It's launched off a cliff...
