i wish someone would design a motor that can consume 30 amps and take one up a very steep hill and yet cruise at 20mph using 20 amps and so not need a huge battery..It's easier to answer you question with examples. A bike with a 500w Bafang BPM motor and 30 amp controller would literally be able to ride rings around your Wisper when climbing a steep hill. It would have approximately double the climbing power, so it would be able to go up a hill twice as steep at thr same speed or one jusft as steep at twice the speed. It would be no contest.
If you use twice the power, you need a battery that can provide it, and it'll use up its charge twice as quickly, so you need a bigger battery.
I don't mind - but also sincerely don't like - movement sensors and crank drives. I had a vision of a powerful but economic hub drive and a rohloff setup (have an extra one) with the hope that movement sensors are less unhelpful in that configurationThat'll be the BBS02 then?
I am considering getting one shortly and putting it on a mountain bike for off road riding.
A bit dearer than your quoted price but in the UK and with free delivery.
http://www.custom-ebikes.com/bafang-bbs02-750w-mid-drive-motor/
I will be using the battery from my Dillenger kit and mounting it in a triangle bag.
There's loads of motors can do that: the obvious ones are the 500W Bafang BPM (code 11 or 12) and the 500w 36v Bafang CST.i wish someone would design a motor that can consume 30 amps and take one up a very steep hill and yet cruise at 20mph using 20 amps and so not need a huge battery..
for 500W, you can have BBS01 36V 25A or BBS02 48V 18A. The BBS02 runs at higher RPM, more suitable on flat roads - I prefer BBS01 with stronger torque at low speed for offroading.That'll be the BBS02 then?
I am considering getting one shortly and putting it on a mountain bike for off road riding.
A bit dearer than your quoted price but in the UK and with free delivery.
http://www.custom-ebikes.com/bafang-bbs02-750w-mid-drive-motor/
I will be using the battery from my Dillenger kit and mounting it in a triangle bag.
it's not on the woosh website yet.I cant find a BBS01 at 500 watts, can you put me up a link to one please so I can compare specs.
It may be better for my needs and slightly easier on the geartrain.
I have hobby horses too, but the older I get the more I realise the real world is more relevant than my views. practically in a world in which car drivers regularly beat the speed limit and I have to travel ten miles a cross a 50mph road which I have to share with them (and that I want to spend as little time as possible on) and in which I feel in complete control of a (hydraulically brakes and on fat big apple tired) pedelecs at 20 or so mph I don't feel I'm exactly committing a UN war crime..i wouldn't recommend 30mph on a pedelec to anyone thoughD 8veh and Trex do argue about crank and hub drives.
Cranks are good and potentially more efficient.
They were the best for a number of years and the Panasonic held the crown for most of them.
Hubs are simpler and cheaper with a greater selection on the market.
Panasonic are an up and coming brand here now?
You must remember that power up hill costs watt hours, you get better performance with a high powered motor.
But a lot less range.
A lower power motor will keep going for longer with the same battery. And usually that will mean greater range even if you don't pedal much.
But here's my hobby horse. A legal motor can make you a super cyclist.
If you do have an incident an illegal one could stop you from claiming and even end up I front of the beak.
If you want to do +30mph with a range of over 100miles there are plenty of mopeds.