Originally Posted by
arsprod
Referring to your post about maintenance I admit I can get lax, but I'm pretty sure you're right and this wasn't loose. It was only on there for about a month and I used loctite! I'm getting the general sense it's the stress related to length of bolt and I'm not sure harder bolts are the long term answer. Then again, it's almost spring and I'm more than ready to get off this studded tire bike
They are a lot better answer than you are getting now.
Grade 8 bolts have a much higher shear strength than lesser grades.
That's why you never see them recommended in "shear pin" use such as in snow blower & roto tiller blades.