December 8, 20196 yr Try this one: https://www.pedelecs.co.uk/forum/categories/electric-bikes.1/ Yes, I've heard it's very good So more specifically - anyone recommend a site that gives an overview of current e-bike tech? Where is the standard for wiring for example??
December 8, 20196 yr Yes, I've heard it's very good So more specifically - anyone recommend a site that gives an overview of current e-bike tech? Where is the standard for wiring for example?? There is no standard for wiring, except EN15194 mentions that cables shouldn't go round sharp corners, you should use grommets and things like that.
December 16, 20205 yr Very informative thread! New member here looking to convert an old (bought well-used in 2005) Brompton L3. I'm settling on something like the Woosh kit with the Cute Q70 hub motor but I want to keep everything as light and simple as possible. Some questions I haven't seen definitive answers to yet: - Ideally i'd like to do 20mph which doesn't seem feasible at 36V, would the Q70 motor be able to handle 48V without issues? And if so, what kind of controller would I need? - What's that kind of setup going to be like on hills? - Am I going to have problems installing the PAS sensor on my old Brompton? If so, shoud I just forget about PAS and install a twist throttle for simplicity? - Once I have the hub wheel, battery, controller and LCD and cabling will everything just work? - Any other 75mm dropout motors I should consider? thanks
December 16, 20205 yr The Q70 can run at 328 RPM at most. Brompton tyres: ETRTO 35-349 circumference: 1.315m maximum speed: 328 * 1.315 * 60 m/s = 25.9kph I don't support derestriction. You'd void your warranty.
December 16, 20205 yr The Q70 can run at 328 RPM at most. Brompton tyres: ETRTO 35-349 circumference: 1.315m maximum speed: 328 * 1.315 * 60 m/s = 25.9kph I don't support derestriction. You'd void your warranty. Thanks for getting back. I've just had a look at your website. What a mine of information! What's the current wait time on your Brompton kit? And do you sell bits separately? Like say, if I just wanted a motor wheel? Can't see a throttle on the Brompton kit. Is that available as an option? Edited December 16, 20205 yr by theabsurdman
December 16, 20205 yr there is no waiting for the Q70 kit. All the other hub kits (XF07, XF08C, DWG22C etc) arrive Friday.
June 29, 20214 yr So my Q70 arrived this week. The details provided by BMSBattery have been ever so slightly less than useful! Does anyone have a colour coded wiring diagram? It's even possible the wiring is the same as others "Q" series motors I guess. Any thoughts anyone? How did you get on with the Q70? What is it like on steep hills with your Brompton?
June 29, 20214 yr How did you get on with the Q70? What is it like on steep hills with your Brompton? It can climb very steep hills without pedalling because of the huge torque it gets from the small wheels. The downside is that you'll be down to 4mph or less and possibly overtaken by people walking. On the flat and slight hills, you get good assistance to about 12 mph, after which power ramps down rapidly. It does match the Brompton very well as long as you don't want to electrify for speed. If you want faster, you could run the motor at 48v, which would give good power to 16 mph, but you need a controller that can limit the current to a max of say 12 amps.
June 29, 20214 yr How did you get on with the Q70? What is it like on steep hills with your Brompton? hi Kelly, you weigh next to nothing for the Q70. Don't worry about it.
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