Skip to main content
15 votes
Accepted

What characterizes a future-proof ebike drive system?

China has developed an ecosystem of interchangeable parts. While there is typically one proprietary interface (controllers communicating with displays), much of the interconnection is using simple ...
user1908704's user avatar
7 votes

What characterizes a future-proof ebike drive system?

If one wants to buy/build an ebike that is the most future proof as it can get, I would recommend to stay away of the following: Closed ecosystems Popular manufacturers of those systems are Shimano, ...
olliebulle's user avatar
  • 4,119
7 votes

What characterizes a future-proof ebike drive system?

Future-proofing can be understood two ways: the user is able to replace broken components by standardized ones. spare parts will be available for the lifespan of the bike, possibly at a cost. The ...
Rеnаud's user avatar
  • 20.6k
7 votes
Accepted

E-bike motor stopping momentarily during steep climbs

You might see the speed drop to zero if there's a speed sensor issue, but you might not. It might use different averaging for the display and the sensor. If it has a cadence sensor (the only e-bike I'...
Chris H's user avatar
  • 59.7k
5 votes

Electric bicycle frequently stops working when slope is too high. Cannot find notice

Don't know if you ever fixed your issue but for anyone else looking it might help to know that on some of the generic ebikes (and possibly even some decent ones) the brake levers may be sticking back ...
Blazeorangeandcamo's user avatar
5 votes
Accepted

DIY chainsaw powered bicycle

We deal with bicycles here, and you're looking to replicate the early motorised bicycle (ie on the way to being a motorbike.) Speaking generally, you need some way to put that power from the motor ...
Criggie's user avatar
  • 125k
4 votes

E-bike motor stopping momentarily during steep climbs

I started to observe this on my older bicycle (Bafang motor) after the battery got older. In my case it very obviously depends on the charging level: the less it is charged, the more likely, does not ...
nightrider's user avatar
  • 7,879
4 votes
Accepted

Is it possible to install a gas engine kit on the bike's existing speeds?

Generally speaking, no. A liquid-fuel engine wants to turn a lot faster than a cyclist would turn the cranks. That's why a retrofit engine often has a small drive cog and an enormous cog on the rear ...
Criggie's user avatar
  • 125k
3 votes

Opening up a geared hub motor

If you have removed all the screws the only thing holding the side on is magnetism. The inside of the motor is lined with magnetic segments and the magnetic field they collectively generate is ...
Bash Noel's user avatar
3 votes

Electric bicycle frequently stops working when slope is too high. Cannot find notice

Check if the battery indicator reading does not go suddenly to zero when the bicycle "stops working" on a slope under load. If so, your battery is unable of providing enough power in these ...
nightrider's user avatar
  • 7,879
3 votes

Electric bicycle frequently stops working when slope is too high. Cannot find notice

The battery may be weak. Or it may be fresh but overloaded. When it is weak it gets overloaded quite easily. Even a fresh battery can get overloaded when you select max support and try to ride a steep ...
Vladimir F Героям слава's user avatar
3 votes

How to make coaster brake work backwards, or disable?

There is a probably very useless potential discussion here about which internal parts of the hub would have to be remade to do this, i.e. if you machined a reverse-threaded driver to take the place of ...
Nathan Knutson's user avatar
2 votes

How to make coaster brake work backwards, or disable?

Coaster brake hubs are complicated. There is usually a threaded component inside the clutch mechanism. To make the coaster brake work when flipped, you'll need to replace it with a new part with the ...
Emyr's user avatar
  • 3,896
2 votes

Can the e bicycle motor be damaged on full throttle with wheel locked

I'd be more worried about mechanical damage. Assume the driven wheel is locked up, and the lock prevents the wheel from rotating by blocking one spoke. Those motors have a lot of torque and applying ...
Chris H's user avatar
  • 59.7k
2 votes

What characterizes a future-proof ebike drive system?

I think by far the most important ability is the ability to re-cell a battery pack, since battery packs wear out even if left unused. The cells almost always are standard quality cells from for ...
juhist's user avatar
  • 19.1k
2 votes

I bought a brand new 26” Seachange beach cruiser that only has the brake in back tire rim when pushing pedals backwards! I am putting a motor kit on

Sounds like your bike has a coaster brake, that is activated by pedalling backward. Coaster brakes need a "reaction arm" which is secured to the frame to function. You say you removed the ...
Criggie's user avatar
  • 125k
2 votes

I have a still boxed Viribus 26" rear-wheel ebike kit - I'd like to remove its pre-fitted gear cogs and fit wheel with motor to front forks instead

No. Your easiest option is to return the item as "incompatible", and buy what you need rather than hacking up this wheel and ending up with a non-returnable part. A rear wheel dropout ...
Criggie's user avatar
  • 125k
2 votes

E-bike motor stopping momentarily during steep climbs

If your Bike has a display that can display any errors, this is where you should start your search. The momentary loss of power could be related to various things, but since you describe it happens at ...
Burki's user avatar
  • 1,545
1 vote

Can I switch my bike from 28" tires to 26" tires if I am replacing everything?

Yes. Your bottom bracket will be lower, and closer to the ground which can lead to pedal strike. If you have mudguards, they will be further from the tyre and will catch less water making them less ...
Criggie's user avatar
  • 125k
1 vote

I have a e bike tricycle. Its butchered. I need a wiring diagram

You're right - you really do need a wiring diagram or more info on that specific brand/model. Everything depends on the design and the parts. So start by googling up all the part numbers and see what ...
Criggie's user avatar
  • 125k
1 vote

Tricycle conversion kit for 24 inch yita home tricycle

Good petrol/gasoline kit? There aren't any - they're all horribly noisy and inefficient. Also, based on this rear-end photo your trike has a solid beam rear axle with no differential. There's a ...
Criggie's user avatar
  • 125k
1 vote

Which mid drive motors use the same frame interface?

There have been a series of questions about e-bikes component availability/serviceability recently: What characterizes a future-proof ebike drive system? and How servicable are older e-bikes? There is ...
Rеnаud's user avatar
  • 20.6k
1 vote

Front hub motor makes clacking noise only when nut tightened

Missing disc brake screws permit sand to enter the gearing. Back on the first bike I had this motor on, the disc brake screws rubbed against the front suspension fork, so I simply removed them. I did ...
jpa's user avatar
  • 1,857
1 vote

How to make coaster brake work backwards, or disable?

A coaster brake requires a reaction arm bolted to the frame, in order to work. By removing that arm completely your coaster cannot apply. However you're still carrying the mass of the shoes and ...
Criggie's user avatar
  • 125k
1 vote

Can the Grin Technology phaserunner series be used in total headless mode? (No display, POS sensor or torque sensor, bluetooth & throttle only)

I don't have the knowledge to directly answer your question about running with no pedal sensor. I can say that when I set up my Grin system, I was able to buy a pedal cadence sensor from them that ...
RLH's user avatar
  • 1,623
1 vote

Nut on back axle

The reaction arm (the thing you are calling a brake lever, which it is in some sense) will either be fitting over the wrench flats of the left side cone, or in some cases might be integrally joined ...
Nathan Knutson's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible