Search results for query: hub motor vs crank

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...

the Pas sensors with the hall sensor anchored to a metal ring is intended to sit on the chain ring side of the crank and is expected to be held in place with the bottom bracket retaining thing.. if you want a left side sensor lift the one pictured or buy a similar left side sensor. dont get...

My 2 bob's worth. I was new to all bikes not having been on one for over 50 years after giving up on my beloved Yammy due to constant nagging by the lovely Jane. I knew nothing of the terminology and hadn't a clue what a bottom bracket was, let alone a crank. This forum has been helpful to...

@Nealh's TSDZ2 would be better for that, high pedal Q factor, and his motor will fill with water faster. That looks just the thing to mix remaining fragments of bike thief bodies I'm disolving in giant vats of acid - it's easier to flush away and impossible to identify scum, when blended into...

Your crank motor would be handy for my fishing boat. It needs an anchor to keep it still while I'm trolling. It's the battery I'mreally after for the trolling motor. It's really useful for when I do the forum on my boat.I can troll much quicker with electric assist...

I don't hate them. I'm building a bike now with one for myself. There's a place for them. It's a case of weighing up advantages against disadvantages according to your specific circumstances and needs. For an average guy wanting to ride around on the road, the disadvantages always outweigh the...

How many times have you heard of any problems with heat on this forum. It’s very unusual to get motor heat problems, though controllers can blow mosfets if they over-heat. That happens with both hub-motors and crank motors. The controller's in crank motors can't get rid of the heat because...

Guess you'd have to try one, but you probably never will - the big advantage is ease of pedalling while dragging heavy weight, without needing an expensive battery capable of discharging high continuous current. I don't know how much you played with the firmware parameters when you had the...

I can't see any sense of using a crank motor on a bike with 20" wheels or smaller. You only get the disadvantages.

Isn't it step-through frames that mask the weight saving of small wheels? You mostly see them in step-through folding bikes or overbuilt BMXs. Given that there doesn't seem much alternative to step-through, the main benefit of small wheels here is in bringing a hub motor's climbing ability...

Doesn't her fazua have a rear hub kit?# edit: you are right, it has a crank drive motor and a hub gear.

Fairs, appreciate the advise

It's an urban myths that hub motors don't climb hills as well as crank drives. If you run with 48v, a hub-motor can tackle any normal hill with ease. You get 30% extra torque compared with 36v.

Actually, I did think about that, but the shop was more or less in sight and I had a pocket full of money. If that guy wouldn't have accepted the job, I would have found another solution. I should really go back and see what they sell. I was in such a hurry and panic that I didn't have much of...

Good point. That's 26" wheels, so 38T would be a comfortable minimum for 29" . What I'm saying is that it would probably be better to get a cheap used catalogue bike with disc brakes to convert. Unless there's something special about you and your rides, it'll work fine with any cheap conversion...

What is it about these TSDZ2s? Not only do owners have to contend with screw anxiety, shaft snap anxiety, moisture ingress, pedal high-q factor, overheat and melty blue gear anxieties (among others), now they've got crank anxiety... An aluminium crank arm has never fallen off my Bafang BBS01B...