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TexasElectric · 05-17-2017, 03:15 PM

As I mentioned in my last post, the rear derailer rubs against the hub motor. I did some research online looking for alternative rear derailers that would not rub (ie. a different design). I started reading about how some manufactures use road bike rear derailers on mountain bikes. So just for kix i removed my cyclocross bike's rear derailer (Shimano 105 5800) and mounted it on the mountain bike (see picture below). I am able to 'walk' the derailer through all the gears by hand. I haven't secured the shifting cable yet. I am pretty sure it will work no problem, If that's the case I'll buy one in the next day or two.

I'm starting to assemble the cells, (See pictures below). I am going to assemble 5 cells in parallel, then heat shrink them together. I will do this for all 16 of the 5p cells. Each 5p 'pack' will have 3 wires coming out of it, (positive, negative, and a voltage regulator wire going to the BMS). Lastly I will connect all of the 5p 'packs' together is series to give me 48v, 27.5ah.

Tomorrow I will spot weld the nickel tabs to the cells.

I am still able to lift the bike off the ground, but I am still missing the hub motor, (it's not mounted on the bike yet).

I also want to point out that the wheel I received (700c) from eBikeling is in fact a 700c wheel. What I noticed today (that I didn't notice yesterday) is that the inside of the rim is a little deeper than my other rims, therefore when i put a tire on it the tire bead falls down about an inch into the inside section of the rim (where the inner tube sits). I have to be careful to make sure the tire is center on the rim all the way around before pumping it up to pressure.

05-17-2017, 03:15 PM	#47 (permalink)
TexasElectric EcoModding Lurker Join Date: Feb 2017 Location: Texas Posts: 48 Thanks: 1 Thanked 27 Times in 15 Posts	As I mentioned in my last post, the rear derailer rubs against the hub motor. I did some research online looking for alternative rear derailers that would not rub (ie. a different design). I started reading about how some manufactures use road bike rear derailers on mountain bikes. So just for kix i removed my cyclocross bike's rear derailer (Shimano 105 5800) and mounted it on the mountain bike (see picture below). I am able to 'walk' the derailer through all the gears by hand. I haven't secured the shifting cable yet. I am pretty sure it will work no problem, If that's the case I'll buy one in the next day or two. I'm starting to assemble the cells, (See pictures below). I am going to assemble 5 cells in parallel, then heat shrink them together. I will do this for all 16 of the 5p cells. Each 5p 'pack' will have 3 wires coming out of it, (positive, negative, and a voltage regulator wire going to the BMS). Lastly I will connect all of the 5p 'packs' together is series to give me 48v, 27.5ah. Tomorrow I will spot weld the nickel tabs to the cells. I am still able to lift the bike off the ground, but I am still missing the hub motor, (it's not mounted on the bike yet). I also want to point out that the wheel I received (700c) from eBikeling is in fact a 700c wheel. What I noticed today (that I didn't notice yesterday) is that the inside of the rim is a little deeper than my other rims, therefore when i put a tire on it the tire bead falls down about an inch into the inside section of the rim (where the inner tube sits). I have to be careful to make sure the tire is center on the rim all the way around before pumping it up to pressure.