For my first ebike I started with the plan to use dual suspension with a cheap bike and changed up in the final days with an end of season deal on a commuter style bike (Giant Transend). Well, it's a great ride IMHO ... but now it's time to make the bike I planned originally.Â
Many days and months of craigslist got me another Giant, but in a full suspension with some triangle space in their largest 2005 22" Trance frame. Either of my current LiFePo4 packs would fit in the triangle if I was so inclined. Though a LiPo pack is ordered and if it works well will be the daily power source.Â
First must have as a daily commuter is fenders and street tires! Next a battery mount/carry option. Since I can't decide ... I picked up both a frame bag and rear rack with pannier trunk bag. Both had to be easy to remove. I favor frame mount but like the clean fit of everything in a rear bag.Â
Ready to start adding electronicsÂ
The rack took a bit of work to mount low, max forward while clearing during compression and somewhat level. Mounting hardware that came with the rack was pretty useless on this type of frame. Now that it is very usable with bag in place, I think dropping it to fender height is in order. Â
The fenders are only slightly modified with 3 new holes and one set of QR brace wires bent to fit. The rear swing arms are too low so I used one of the arms of the rack. I consider the current rear mount temporary until all gets dialed in and I'll clean up and make the wire supports look better. Hoping that I can mount top of rear fender to the rack and eliminate the need for one set of supporting wires.
The parts added so far are pretty light individually but all mounted makes the bike noticeably heavier. The heavy stuff is ordered and pending shipment... I'm guessing about 70lbs total? Â Â
Epart decisions include a BMC V3 kit, some LEDs, DC-DC converter and 10AH Li-Ion 14s 5C cells w/3C PCM limit. I plan to cook the battery in a large Dutch oven so wherever it goes it must be easy to connect and mount daily. The tiny battery is a big unknown but worth a try. Much contemplation about alternative motors, RC & hub, went full circle back to my current setup.
Parts still undecided include LED flashing unit, turn signal and taillight options. How to easily add and trade out batteries for long rides such as with my dual 15ah packs. A few more... etc... enough for now.
My use targets were:
- 10mi daily
- 30mph cruise speed
- 40mi or so long ride
- handling in adverse conditions
These last 2 are big reasons for this new bike.Â
Anyway... just thought I'd share my build with others here on ES.