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Old 05-25-2010, 06:46 AM
Retmachinist's Avatar
Retmachinist Retmachinist is offline
Motorized Bicycle Elite Member
Join Date: Oct 2008
Location: Urbandale Ia
Posts: 637
Default Re: stupid threaded rods

If you have broke three sets, you have got some big time vibration going on there. Don't use any kind of rubber mount, and also don't use stainless steel. It is pretty, but certainly not tough.
I think that area is the weakest link to the engine mounting so I drill mine out and tap them 8mm right out of the box before I install the motor. Never have had a problem.
Seems like it is only the back mount that causes the problem for alot of people.

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