Trek Pure Comfort Bike

[DervAtl]

This is my first ebike. I had a lot of fun building this bike and also (with the help of ES) learned a great deal. I chose this bike frame for it's comfort and because it has steel forks and aluminum frame. I narrowed down my choices between the Pure and the Townie. Both are great bikes, but I like the styling a bit more on the Pure. Pure was develped as Trek's competitor to the Townie, so they both feel and handle similarly.

Components are Amped Bike front wheel drive kit and stock controller. E-Bike kit LiFePo 10 ah battery. I built this bike for fun and to ride to work, which is only 4.5 miles away. So, the 10 ah battery should do nicely for that distance. If I were doing it over, I would probably opt for a rear kit instead of the front. I would also go to 48 volts instead of 36. I do not ride fast, rarely over 20 mph, but the extra torque on a hill would be nice. The Amped Bike kit performs nicely and is very quiet. It runs about 24, which is quite fast for a 36 volt.

A couple of things I'd like to see Amped change on this kit are:
1. Include thin washers on the inside of the fork to keep the shoulder of the motor shaft from digging into the fork material. I ended up ording a couple from Jason at E-Bike kit to install on mine. Had to disassemble the connector to get them on the wired side. Delayed my build over a week to get this done.
2. Order the controller black instead of shiny aluminum. It sort of draws attention to itself being so shiny.
3. Include a Cycle Analyst connector on the controller.

These are just minor suggestions to an otherwise nice kit. I'm looking forward to the summer when I can actually do some riding!

View attachment 6

 

[Kepler]

Nice tidy commuter. Welcome to the world of E-Bikes. Like your attention to detail with the color coded cable ties. All adds up to cleaner looking build.

 

[torker]

Looks good. I like the connector near the motor for tire changes. A front motor should do good since a lot of the weight- you/battery is already towards the rear. Nice clean commuter.

 

[DervAtl]

Here's something someone might find interesting or helpful. The place I mounted the controller is on two round bars that are on an arch coming from the rack. This rack is a Trek rack, purpose built for the Pure. The screw holes at the end of the controller are at least an inch wider (at each end) than the arched bars where I wanted to mount the controller. To solve this problem I went to Target and bought a black plastic cutting board. I cut a piece out of the board so that it is the exact length of the controller, but slightly narrower so you cannot see it.

I held the board in place and marked holes on the bottom of the board on either side of the arched bars from the rack. Drilled these holes and fastened the cutting board to the arches with black cable ties. Placed the controller on top and drilled starter holes for the controller screws. Worked like a piece of cake. You can't see anything underneath the controller and its has a great base that won't be moving. Working with this cutting board, I found out that they have a really good grip for screws. I was worried it might be to brittle and bust out, but not the case at all. It might actually hold a screw stronger than wood.

 

[ebent]

I like that conector at the motor also. Where can I get one?

Thanks,
ebent

 

[DervAtl]

I like that conector at the motor also. Where can I get one?

Thanks,
ebent

The connector came with the kit (Amped Bikes). I'm sure someone sells it, although I haven't run across a vendor yet. Danny, at Amped Bikes, might be able to help you.