Search results for query: hub motor vs crank

Someone didn't think that one through: crank motor, no gears and 20" wheels.

Bromton forks aare only £65 new, so you can buy a spare pair to file for a motor. It's not exactly a big deal, the original wheel still fits OK after filing. The 3-speed gears work pretty well when you have a motor. Even the weakest motor can drag a 100kg rider up a 14% hill without pedalling...

Thanks for the info. On that fake Brompton I mentioned in another post, I fitted a front derailleur and had two chainwheels. This greatly enhanced hill climbing from standard, but was still somewhat limited with the ordinary SA hub. I think most of that conversion could be put onto the actual...

No need to grind the dropouts, there are front hub motors and conversion kits that fit direct in either the standard steel forks or indeed the titanium versions. I know the feeling. There are heaps of gearing options for a Brompton, wide ratio hubs etc. My non-electric Brompton had a...

I have a Brompton which I bought some years ago when I went to buy a nut for the rear wheel of a sturmy archer equipped bike. I saw it in the bike shop window and bought it on the spot. It wasn't as much an impulse purchase as that sounds, because the bike I was fixing was a fake Brompton - a...

Rear motor gives a better ride than a front one. Q100 or AKM100 (same motor) would be suitable as long as you get the 201 rpm version. KT controller to go with it is very good. It has a nice pedal assist function, and you can legally add a throttle to get an instant power boost. That will make...

The Suntour motor connector is completely different to a standard Chines 9 pin one. Best way forward is to buy a 9 pin motor extension lead and cut off the end with the male pins and solder all the wires to the Suntour cable.

Just going to try to switch out a hesc Carrera Vengeance system totally Awaiting the Kit to arrive. Always seems to have a problem with its pedal crank sensor Once it ripped the wire off by rotating Took Halfords 3 weeks to fix & as for the wifes Raleigh Stow E Way 5 months in has spent more...

Hi, I’ve had folding bikes, road bikes, MTB (not gravel yet!). New to e-bikes, tried a e-bike MTB on holiday, test rode an electric Brompton, liked the ability to fold to take into cafes etc. Looking for a e-bike, potentially Brompton e-bike conversion for long distance. Have looked at ARCC...

Hi Can anyone help please.I have a carrerra vengeance e bike around 2018 model.The display mode light on hi std and eco started flashing and was getting no pedal assist.I took it to halfords,have had crank sensor ecb and display replaced, battery is showing full charge they tried new motor and...

I bought/sold one of those on ebay about 10 years ago. Good at hill climbing because of crank drive (24V ex van/lorry? starter motor), but rather top heavy because of two lead acid 12V batteries in rear box.

I'm just back from an initial test ride after fitting the 3 speed and all seems good so far, there was a bit of a noise which I've just identified as the link in the single speed chain passing through the tensioner, but other than that I'm happy with the conversion from 7 speed derailleur.

Had a bit of a delay getting back to this. With all your help I have managed to get everything connected so that handlebar controller powers up, motor runs on the the throttle and headlight comes on. I have no crank sensor or wheel speed sensor to connect yet but have only one 3 pin plug not...

Have for sale a TGA 24 v Crank Drive 20 inch bike, all working OK, with spare & original charger. Has SLA batt system. Drives through Sturmey 3 speed rear wheel. Works fine as is or could be basis for say hub motor crank drive project. Some rust on rims but comes with spare donor wheels with...

9 Year Update After popping out to the bike to check the mileage, the reading makes no sense and may have reset at some point at some time. Now that I am not using the bike to commute on I have not been keeping an eye on the accumulated miles as frequently. Looking back in a dairy I use to note...

I'd be interested to find out how the SA hub would stand up to the power of a 250 watt crank motor. I had one on a counterfeit Brompton I had about 15 years ago. I rode that set up 4000 miles before I retired it, but it only had to deal with my own power output, and being a 16 inch wheel, I...

I live close to an mtb trail center and the Bosch motor mtb are popular and are good climbers. I often wondered is it that the motors are good or is it that the gearing is good or perhaps both. These bikes have small front chainrings of 34T and large 51T on the back which would give about 50%...

Whichever of the many different motors Oxygen used, the torque is not much determined by the motor. It's determined by the current from the controller, which in your case is probably 15 amps. That's not particularly high, and your motor could have handled a lot more. A crank motor's torque is...

Is the motor installed upside-down with the cable exiting upwards? That would cause the problems you experienced.

Slightly off tangent update: The current Swytch powerpack has faulty phase wire cable connection (Amass MR30, rated 15A) between the controller and the powerpack/handlebar bracket interface. I suspect the connector melted due to poor continuity somewhere between the controller and the hub...