Recent content by Domhelp

Glad to see that you took the plunge and that you are enjoying it. :thumb:

I was expecting this motor package from Luna to be a nightmare but 1000km later that has not been my experience. I added additional support to the motor which you can look up in my previous thread. Motor flexing has not been a problem. The tensioner needs periodic adjustment /tweaking to...

I really enjoyed my first mid drive ebike but because I mainly used it off road the suspension was not up to the job. I bought a Devinci Ollie downhill, not sure of the year, and transfered my components over. It has 210mm rear travel and 185mm front travel. Now I've got the suspension I...

I am impressed. I did 25 miles a may be able to get 35 miles total out of a charge which is more than I was expecting. I will keep an eye on voltage under load. I am sure that a higher quality battery will have less sag. By the time I called it quits my sag was about 6 volts. But most...

The pack can handle 50 amps short duration 30 amp continuous according to seller. My setup draws 40 amps max.

Thanks to all for the information guys.I am happy with the battery considering the low price. It is made from 18650 cells. I guess I need to go for a longer ride next time to see how much juice was left. My plan is to stop riding when my resting voltage drops to 69v and I wont let the amps...

How do I know when I have reached 80%?

I have a new 72v 20amph lithium ion battery which I am using with my cyclone 3000. With a fresh battery I am drawing 40 amps and 3000watts. According to my cycle analyst I travelled 25 miles. My resting voltage after 25 miles was 71.7 volts and I used 9 amph. Under full throttle my voltage...

I weighed the batteries on my proton. It has a 72v 30amph battery. Each 12v battery weighs 23 lbs, thats 138 lbs in total and more than half the weight of the bike. My 72v 20amph lithium battery weighs 18 lbs. If I install this battery I will shed 120 lbs and probably have higher voltage...

This is a complicated build and you said your reason was because you like the torque of electric instead of going straight gas. Why not do a gas and electric hybrid drive with no generator? Much simpler and more practical. Of course you are probably doing it for the hell of it instead of for...

I have not looked for a 72v hub motor but I am surprised that they are so rare. If I were using an ebike for commuting on the road I would definitely be using a hub drive. They are basically maintenance free and super reliable. But it's true that it's nice to be able to pedal without power with...

According to the meter just over 45 amps. One day I will compare it to a clamp on meter to see accuracy. So I guess that explains why my "500 watt" scooter does over 60kmh. The only modification is the governor bypass and this does not appear to affect max amps.

Makes sense thanks. I am going start over with a new chain. I am going to avoid the smallest gears as I don't really need them and they will really load and stretch the chain. I have come to the conclusion that if you are only going to have one electric bike then a hub motor is the way to go...

I noticed that when I lengthened my chain my tallest gear would slip at high speed. Curious as to why my cassette will get damaged if I lengthened my chain? I though it was skipping because it was now too loose.

My drive chain has been fine. My rear cassette chain broke. Luckily I was close to home. It was my fault I think. I lengthened it by a few links and I think it separated where I joined the extra links. Once you pop out a pin then press it back in, that pin will become a weak spot. I think...