azneinstein
100 mW
- Joined
- Jun 10, 2013
- Messages
- 42
So I really should have planned ahead as my build slowly got less and less ambitious, but I thought my first real posts would be showing off my build but I don't even know what happened on my first test ride.
A little background, I do work in a shop and I've probably built over 30-40+ bikes from scratch and tuned hundreds- so I think this is where my ego took a hit and why it took about a week before I finally decided to look at the damage. I was so ready for hair in the wind adventure that day...
The kit is one of those front hub 1000w kits from ebay. I finally find a guy selling a brand new Nashbar Steel fork off CL with reviews saying the fork worked great with a ebike build, etc... Now using a Ping 48V 16ah battery.
At this point, the bike is finally finished- the dropouts seems good, the wheel is straight and the bolts are definitely tightened. At this point I have only picked up the wheel and opened up the throttle fully, and all seems well. Wheel spins fast and no shaking/vibrations or anything loose and done this a dozen times.
So now the test ride, I ride the bike around the block several times to make sure the mechanics of the bike is fine and get a little speed, as I open up the throttle (which I swear was pretty lightly) I eat it. I'm still not sure what happens as I'm more concerned about the back of the bike which just threw itself almost over, I only had tiny bungees for the battery, it was in a basket but I wasn't expecting an upside down catastrophe. Luckily I caught the bike and all is well except the electric part and part of the back of my leg.
From the damage- I'm guessing the torque itself spun the wheel out of the axle cause I remember the wheel axle out of the fork which had jammed the vbrakes causing the sudden stop and back flying over. The dropouts on the forks are now not as rectangular and now a bit widened and the spacing itself got spreaded out when the wheel went crooked. (I did verify right now to make sure I didn't get shafted with an aluminum fork) Also huge scrape marks on the inner fork legs from where I think the bike fell out of the wheel and scraping the axle.
I think the problem I have is that this was suppose to be a simple install and go. Tons of people have done it, everything was dandy during testing, I used the torque nuts not arms but I didn't think that would be an issue with a rigid steel fork.
The damage to the wheel- currently one of the blue tiny/thin wires got frayed and cut during the process, the rest looks find but it's a pain cause the part is right where the wires run into the axle and there's barely any wire to repair/crimp/solder as they're so thin.
The wheel also doesn't spin now where it did before, I don't think the disconnected blue wire (Hall) would cause that.
So what's next? I'm so disappointed in myself right now- but I had won a ebike.ca ebay kit from somebody that never used it so hopefully that one works out.
A little background, I do work in a shop and I've probably built over 30-40+ bikes from scratch and tuned hundreds- so I think this is where my ego took a hit and why it took about a week before I finally decided to look at the damage. I was so ready for hair in the wind adventure that day...
The kit is one of those front hub 1000w kits from ebay. I finally find a guy selling a brand new Nashbar Steel fork off CL with reviews saying the fork worked great with a ebike build, etc... Now using a Ping 48V 16ah battery.
At this point, the bike is finally finished- the dropouts seems good, the wheel is straight and the bolts are definitely tightened. At this point I have only picked up the wheel and opened up the throttle fully, and all seems well. Wheel spins fast and no shaking/vibrations or anything loose and done this a dozen times.
So now the test ride, I ride the bike around the block several times to make sure the mechanics of the bike is fine and get a little speed, as I open up the throttle (which I swear was pretty lightly) I eat it. I'm still not sure what happens as I'm more concerned about the back of the bike which just threw itself almost over, I only had tiny bungees for the battery, it was in a basket but I wasn't expecting an upside down catastrophe. Luckily I caught the bike and all is well except the electric part and part of the back of my leg.
From the damage- I'm guessing the torque itself spun the wheel out of the axle cause I remember the wheel axle out of the fork which had jammed the vbrakes causing the sudden stop and back flying over. The dropouts on the forks are now not as rectangular and now a bit widened and the spacing itself got spreaded out when the wheel went crooked. (I did verify right now to make sure I didn't get shafted with an aluminum fork) Also huge scrape marks on the inner fork legs from where I think the bike fell out of the wheel and scraping the axle.
I think the problem I have is that this was suppose to be a simple install and go. Tons of people have done it, everything was dandy during testing, I used the torque nuts not arms but I didn't think that would be an issue with a rigid steel fork.
The damage to the wheel- currently one of the blue tiny/thin wires got frayed and cut during the process, the rest looks find but it's a pain cause the part is right where the wires run into the axle and there's barely any wire to repair/crimp/solder as they're so thin.
The wheel also doesn't spin now where it did before, I don't think the disconnected blue wire (Hall) would cause that.
So what's next? I'm so disappointed in myself right now- but I had won a ebike.ca ebay kit from somebody that never used it so hopefully that one works out.