Looking for recommendations for my project, can you help.

[Olivettibakebean]

Hi guys new here been thinking about a mtb full suspension e-bike for a while now but have been building a custom 66 Scooby turbo camper which has kept me very busy up to now. You can check out my bus on my site http://www.topsoilproject.com/vw%20bus.html Have had lots of idea in the past but am now set on one design idea and wondered if you guys can help with the best quality parts for the best price.

So I am about to get hold of a 2004 Cannondale Jekyll.

Not wanting to use a hub motor as I like the idea of keeping the gears and also trying to centralize the weight of the bike as best as possible.

Would like a 48v 1000w motor that drives a freewheel crank, using a 48v 20ah lifepo4 battery. I have looked at the Cyclone kits and they look OK other than the price and the mounts which look like scrap to me. So I plan once I have all the parts together on designing a custom mount and having it CNC cut.

So what advice do I need, well here is a list.
1) Powerful and reliable motor 1000w or above.
2) Strong freewheel crank and bottom bracket.
3) Controller which will last, from what I have heard at this power they can burn out easy. I hear Lyen's controller is great.
4) Throttle control (thumb or half twist) that won't give me any problems.

Would also appreciate any electrical based safety advice relating to this project, don't like the idea of a fire between my legs.

Happy to turn this into a detailed thread of my build so thanks for your help in advance.

Ollie

 

[MitchJi]

Hi Ollie,

Good luck on your build!

For the Crank FW this is the best:
http://www.sickbikeparts.com/catalog/product_info.php?products_id=62

Super heavy duty front freewheel made exclusively for Sick Bike Parts by White Industries.

Leaders in the industry for hiqh quality bicycle components. Not only are these freewheels durable but are also serviceable.

Would like a 48v 1000w motor that drives a freewheel crank, using a 48v 20ah lifepo4 battery. I have looked at the Cyclone kits and they look OK other than the price and the mounts which look like scrap to me. So I plan once I have all the parts together on designing a custom mount and having it CNC cut.

Ollie

These mounts for the Cyclone are better than the Cyclone Mounts:
http://www.eclipsebikes.com/custom-chainwheel-mounting-p-993.html

Another option, if you build your own mount, if you are attaching the mount to a round tube it might be easier and better to design a mount that accommodates Matt's frame clamps (it would need to match the bottom of the included in the picture drive "foot"):
http://endless-sphere.com/forums/viewtopic.php?f=28&t=7180&p=156487

This clamp set is 1.5 inch bore. It safely clamps down to 1.375 inches without a problem. I will make these in 1.5 inch, 2 inch, and 2.5 inch. I will also stock shims to shim these down to odd sizes. The shims are merely aluminum tube cut to half-moon shape. So, my clamps will fit everything from 2.5 inch diameter tubes all the way down to 1.125 tube.

The clamps will cost $78 for the set with bolts.

 

[Dingo2024]

Hi Ollie,

if you plan / or are thinking of the cyclone kit take a look at my build thread

http://endless-sphere.com/forums/viewtopic.php?f=6&t=18130

it should cover many of the points raised regarding using the kit at 48v.......such as gearing and mounts etc.

this is still very much a work in progress but I am very happy with the performance (range and speed) so far ......with more to come

Ian

 

[Olivettibakebean]

Hey sorry I ended up using a hub motor in the end. I have another thread with the build here.

http://endless-sphere.com/forums/viewtopic.php?f=6&t=25932&p=376780#p376780

Thanks for the help though!