Six months and over 1000 miles have flown by and a posting is due. I put together a 12s LifePO4 pack, using an agniusm kit, a trailer plug (Walmart) and a messenger bag (Target) the bike works so great I didn’t even bother to hook up extra juice. Neither did I hook up the BMS I got from Ohzee; my commute is under 13 miles which doesn’t drain the battery much. All the cells stay balanced.
I decided to mount the pack onto the fork. Double crown forks make this task fairly easy. I fabricated an aluminum tray and bolted it to the forks to support the battery, a bungee spider net holds it in place. This was supposed to be temporary, but so far couldn’t come up with anything better. I think it is the best option given the format of the cells and the size of my frame. (Not too compatible there)
Things that I am definitely happy with are:
- The 24” rear wheel drive. I have another ebike which is 26” front wheel drive and the difference is day and night; traction, torque, and even top speed.
- The 11 tooth freewheel coupled with a 52 chainring up front. The bike cruises at around 27 and tops at 30mph on flat terrain. Good bicycle speed and can be pedaled. Furthermore, the road crank has bolt-on rings which makes easy the upgrade to larger rings to be able to pedal when the power gets increased (looking forward to run at 24s).
- DrBass’ torque arms. Compact and solid pieces that could have been tighter at the axel but I think are serving their purpose. I did not want to make a permanent mounting (gluing, welding) and so I came up with 2 different approaches. On the drive side, I tapped an allen bolt into the T-A in such a way that the head of the bolt (facing inwards) fits (snug) in a structural hole of the frame. I cut the end of the bolt flush on the outside. On the left side, I made a bracket that got fixed using the same bolts and rear caliper mounts. The T-A is bolted thru the bracket making a very solid assembly.
:lol:
