Building an Electric Bike
#1
Thread Starter
Senior Member
Joined: Jul 2009
Posts: 208
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From: Somerville, MA
Building an Electric Bike
So I am building a new electric bike. I am planning on getting a front-drive kit from Amped. The idea is that I am going to get a Townie comfort bike and then apply the kit to it. From what I understand Aluminum forks aren't the best for front-drive motors (I actually witnessed one get completely bent out of shape after hitting a fairly nasty bump).
What replacement forks would people recommend for use with a front-drive motor? Are there any shock absorbing forks that would be strong enough to handle the motor?
What replacement forks would people recommend for use with a front-drive motor? Are there any shock absorbing forks that would be strong enough to handle the motor?
#2
So I am building a new electric bike. I am planning on getting a front-drive kit from Amped. The idea is that I am going to get a Townie comfort bike and then apply the kit to it. From what I understand Aluminum forks aren't the best for front-drive motors (I actually witnessed one get completely bent out of shape after hitting a fairly nasty bump).
What replacement forks would people recommend for use with a front-drive motor? Are there any shock absorbing forks that would be strong enough to handle the motor?
What replacement forks would people recommend for use with a front-drive motor? Are there any shock absorbing forks that would be strong enough to handle the motor?
#4
Thread Starter
Senior Member
Joined: Jul 2009
Posts: 208
Likes: 0
From: Somerville, MA
Thanks for the replies! I am going to make sure that the bike is suitable for the engine.
Is this a non-issue with rear wheel motors? Now I am thinking of getting a new hybrid and converting my old 7.2fx. The 7.2fx is also made of aluminum - could it manage a motor on the rear wheel?
Is this a non-issue with rear wheel motors? Now I am thinking of getting a new hybrid and converting my old 7.2fx. The 7.2fx is also made of aluminum - could it manage a motor on the rear wheel?
#5
Senior Member
Joined: Feb 2010
Posts: 110
Likes: 0
From: Calgary
Bikes: Old Norco frame in conversion process
I can attest - my Norco seems to be all aluminum. I run a rear hub motor and have definitely not had a problem.
I did limit the beastie to a max 30A draw and torqued the rear nuts down well. I did not install torque arms, and I carry the batteries in panniers off the back. I do imagine there is some stress on the farme, but so far no issues with it.
BTW guys - I ordered 2 * CellLog 8 today.... 40Ah cells maybe tomorrow....
I did limit the beastie to a max 30A draw and torqued the rear nuts down well. I did not install torque arms, and I carry the batteries in panniers off the back. I do imagine there is some stress on the farme, but so far no issues with it.
BTW guys - I ordered 2 * CellLog 8 today.... 40Ah cells maybe tomorrow....





