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250w is the rated power, the actual max output power from a hub motor with a 36v 15 a controller with a full battery will be closer to 500W (42v *15amp * 80?% efficiency)

These are easy to convert and fold up (bi fold rather than tri fold) but my mother in law gets it in her supermini https://www.pedelecs.co.uk/forum/threads/converting-folder-bike-to-cassette.47893/post-733513

Would @Woosh sell you the a 48v rear DWG22C hub wheel , controller and display and you can buy a bigger battery (48v 20Ah) separately ?

There's a few places that does 250w kits : Woosh, Yosepower PSWPower, topbikekit I would suggest a geared rear hub motor and put the battery on the downtube. Maybe a 48v kit for power

70-100 miles of delivery riding a day sounds incredibly tough, you will need something pretty heavy duty ! I would echo the idea of having a spare battery that you could swap over.

https://www.pedelecs.co.uk/forum/threads/converting-a-little-folder.47261/post-716537 that was using the topbikekit 74mm AKM-75SX 20inch front hub and Woosh bag battery

Yep motor connector right to the line, not checked inside the battery compartment that houses the controller. This is a 201 rpm motor i think (no load unrestricted speed on full battery 19mph) I have had this before on completely different e-bikes with different batteries and different...

The LCD stays on

So my very first conversion was 2 years ago. I fitted a Woosh XF08c kit to a Claud Butler step through bike (with rim brakes !) It has a 36v 20Ah rack battery with I believe a Lishui 18 amp controller built into the battery housing I was very pleased with it and my niece "borrowed" it to...

Ok, was pretty straightforward, 280rpm 36v tbk-100cst (claimed 30Nm !) + Hailong 17.5 ah 36v Panasonic battery Total weight including battery (according to my luggage scales) 16kg Wheel built by arrow wheels, they did a good job 2 things that stopped it being completely trivial, 1) motor...

Maybe : https://www.ebay.co.uk/itm/205393403936 Or if you can find a relatively light (maybe without front suspension from a weight point of view) step through bike with disc brakes as a donor bike, fit a kit to it (or get someone to help fit a kit). Just for example, this is a womens...

As you begin pedalling the motor starts assisting, you can have cadence sensors (that detect that the pedals are turning) or torque sensors ( where the motor assistance is proportional to how hard you pedal) There are hub drives (Wayfarer H7 ) , where the motor is actually inside the wheel or...

yes - step throughs have to be a bit more solid because there is no bracing cross bar - looks a lovely bike - happy pedelecing - I think that was a bargain

The Wayfarer sounds a good bet for that sort of mileage, with the reassurance of good customer service and support. There is also the older Wisper 705 that is a lovely bike and built for high mileage (my wife has the 2019 model and it runs like new) Worth talking to David @Wisper Bikes - he...

Thanks - the motor did come via the wheel builder but there were no bolts with it - The standard ones are M5*10, I have ordered M5 *8 round head allen via your link

Another question - what's the best thing to do when you are swapping over a disc rotor and the bolts from the original are too long for the motor wheel. I've used a 'rotor spacer' but are there slightly shorter bolts available ?

Just been on a 15 mile ride on my folding bike with a 36V 10Ah battery and KT controller / display, it is showing half full battery on the KT display, when I measure the voltage with a multimeter it is showing 38.9V

£180 (cost £360 June 2023) I think the price is on there

https://www.pedelecs.co.uk/forum/classifieds/bosch-powerpack-frame-classic.424/

https://www.pedelecs.co.uk/forum/threads/a-new-kit-is-on-the-block.48471/