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Old 06-11-2011, 06:08 AM
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The_Aleman The_Aleman is offline
Motorized Bicycle Elite Member
Join Date: Jul 2008
Location: el People's Republik de Kalifornistan
Posts: 2,658
Default Re: Love my Bike but...

Originally Posted by Crazy Grandma View Post
So what kind of bolt stainless steel. I'm serious my neighbor works on cars and he said the same thing.
Don't use stainless bolts. They are almost always ungraded. The stock studs are junk and they are probably better than stainless. Remove/replace the old studs with metric Property Class 9.8, 10.9 or 12.9. Higher the better. You can find them at your local Ace or Lowe's. It's a good idea to loctite em, I always used red on the motor mount studs.

Originally Posted by Dontwannawalk View Post
Here's my experience with replacing the mounting bolts. Don't go with the hardened steel mounting bolts. They break before they bend and they break inside the stud hole in the engine (yes I used Loc-tite).
This is just crazy talk, IMO. They bolts shouldn't bend, either. I've used 10.9 and 12.9 and they never broke or bent. If you had problems with breaking, you didn't go with a high enough grade.
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