Banshee Scream downhill MTB conversion

General Discussion about electric bicycles.
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MadRhino   100 GW

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Re: Banshee Scream downhill MTB conversion

Post by MadRhino » Jan 11 2019 5:00pm

ScooterMan101 wrote:
Jan 11 2019 3:43am
With a heavy hub motor on a bicycle frame , I would have some custom made torque arms for each side, long enough to go far up the chain stays so as to lessen the torque loads on a bicycle's small , thin, drop outs.
The droputs of the Banshee Sream are huge and half inch thick. Tight fit torque plates 1/4 steel screwed on each side are best, either deep dropout, through axle, or thicker pinch type. Torque arms are common on low power, cheap kit builds. For high power, torque arm is the ugly temporary solution. Not that they can’t be made strong enough, but a high power build deserves the extra work to make it neat and reliable on the long term. The QS 205 is delivered with torque arm, yet best that can be done is throwing this to garbage and spend the time to make the real thing.
Make it fool-proof, and I will make a better fool.
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exe   10 W

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Re: Banshee Scream downhill MTB conversion

Post by exe » Jan 11 2019 9:38pm

MadRhino wrote:
Jan 08 2019 9:59pm
The bike has too much of a fork for the speed that you plan. Sell that Monster T and replace with a lighter fork. It does look mint, you can have a good price, for this particular late model of the Monster T is very interesting for those building fast bikes.

The bike is good to build, hub or BB drive. Hub would make it simple and more reliable, while BB drive would retain the bicycle feel.
Does 'lighter fork" mean single crown fork? What speeds on paved streets can you expect to be the limit of single crown forks?

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MadRhino   100 GW

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Re: Banshee Scream downhill MTB conversion

Post by MadRhino » Jan 11 2019 10:56pm

For a powerful bike that will ride 40 mph, a DH fork is not overkill. A Monster T is too much for the street, too big and heavy for the task. Many DH forks are much lighter, and stiff enough for the task.

It doesn’t mean that some single crown forks are not able, but you’d need one of the best and pay higher price than you can find an entry level or older racing DH fork for.
Make it fool-proof, and I will make a better fool.
Current bikes
Street: https://s20.postimg.org/ewrvugywt/Session_04_2015.jpg
Dirt: https://s20.postimg.org/lbqwr55ml/IMG_0157.jpg

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