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their advertisements are on the right hand side column AMPS wisper, cyclotricity, 50cycles, juicybikes, electrifying cycles, A2B, TETS, Ebco, ebikes-direct, Raleigh.co.uk. Lesser supporters include cyclezee, kudos, woosh.

impressive. I reckon on 650B wheels, it'll blow the socks off the KTM e-race P. Less than £500 conversion kit.

is this no load speed or real life speed?

the performance of the Q128H could exceed the Panasonic hub motor with your setup.

I always want to fix things myself. Did you use the 36V 201 RPM and overvolt it to 48V to get the speed?

the problem with mixing front hydraulic +rear cable operated is an esthetic one. The levers don't look like a pair. Perhaps someone should sell brake lever covers.

the 1:16 reduction ratio is just as strong for hills as the Xofo CD which has 1:22 reduction ratio and half the price of the Xofo CD. How easy is it to open? as easy as the BPM?

Banking and financial services account for about 10% of GDP. Don't let the action of a few hundreds unscrupulous dealers tar the respect that more than 1 million people who work in this industry deserve.

I found the info on ES. 3kgs, 128mm, 1:16 two stage reduction. Very impressive indeed. Only query area about the solidity of the clutch unit.

do you know the weight and diameter of the Q128H? I've looked on bmsbattery.com website and could not find the info.

which controller do you use with this Q128H? their test report looks very impressive against the BPM.

the white one in the front is the USB programming lead. I think the translucent two pin plug is for the light. You can check with a multimeter.

what do you think of the Shengyi CD motor that you reported from Shanghai?

that's the same xofo CD motor: http://www.xofomotor.com/display.asp?id=819 a bit lighter than the BBS01/02 and cheaper too.

they don't want unauthorised assemblers to get hold of their motors.

you can go on pedalling as fast as you like, but the motor must cut out at 25km/h - there may be a little tolerance, the cut out can be gradual but above 27km/h, the assistance must cease. You can certainly throttle all the way up to 27km/h and start pedalling if you like. I do this some time to...

the woosh Sport TS uses the Xofo motor with integrated torque sensor http://wooshbikes.co.uk/?sport-ts d8veh said it has a nice power delivery, I like it very much but it has less grunt than the 8-Fun BBSes.

not much difference in performance. You pay more for a European made battery because of higher labour cost and distribution system, the cells are probably from the same company (Samsung, Panasonic, Sony etc). You also pay for the longer warranty if bought from a shop, usually 2 years instead of...

sodium-ion battery has good commercial prospects for large energy storage because sodium has a comparatively lower cost than Lithium but I can't see it succeeding in e-bikes. The sodium batteries are as heavy as SLA batteries and nowhere near as robust. They need a wheeled stand to support...

you are regurgitating umpteen times that gear shift under load. Thousands of users with the Tonaros and 8-Fun BBS kits have no problem with shifting gears, you just blip the brakes if you want to cut the power while you are shifting under load, it works just as well as a gear sensor. Compare the...