How does Bosch sense braking?

[fooferdoggie]

Hi @fooferdoggie ---the Bosch eBike System in NA does not connect to a braking system. All of the sensors are built into the drive unit that detect a rider shifting or adding torque to the system. These are just a few of the parameters that speak to when assistance is delivered.

Hope this helps--please reach out with any questions.

yep thanks. I would bought higher end brtakes on our tandel but i thought they had to be e bike compatible.

 

[Alaskan]

in order to stop a bike at high speed on steep slopes,, mountain bike brakes are made to deal with much higher force levels than most other bike brakes.

As such they are more often used on ebikes which attain higher speeds and weigh more than conventional bikes. Obviously a tandem bike needs strong bikes as the bike weighs more and it has two people on it. Look for mountain bike type brakes, especially those with four pistons and larger pads on a tandem and you will be okay.

 

[fooferdoggie]

in order to stop a bike at high speed on steep slopes,, mountain bike brakes are made to deal with much higher force levels than most other bike brakes.

As such they are more often used on ebikes which attain higher speeds and weigh more than conventional bikes. Obviously a tandem bike needs strong bikes as the bike weighs more and it has two people on it. Look for mountain bike type brakes, especially those with four pistons and larger pads on a tandem and you will be okay.

yes the bike came with a step below deore 2 piston and only 180mm rotors. way to weak. it would be great to get hope brakes but the deore 4 piston with the cooling discs are fine.

 

[Alaskan]

yes the bike came with a step below deore 2 piston and only 180mm rotors. way to weak. it would be great to get hope brakes but the deore 4 piston with the cooling discs are fine.

In reality both the two piston and four piston brakes have equal stopping power in periodic braking on mostly flat ground.

The difference is that the four piston calipers with larger rotors, spread the braking friction out over a greater surface area therefor running cooler in a downhill situation where constant braking can overheat the brake fluid to the point of boiling. When that happens the fluid turns to gas which can be compressed (as opposed to liquid) causing a loss of braking.

 

[Stefan Mikes]

Isn't is @Alaskan that the 4-piston brakes are better for modulation on braking as well?

 

[Alaskan]

Isn't is @Alaskan that the 4-piston brakes are better for modulation on braking as well?

I have read that 4 piston brakes give finer control and better modulation, but I have not personally noticed any difference in modulation. Then again I am not using my brakes in the kind of hard service that people on mountain bikes do.

 

[fooferdoggie]

on a tandem modulation is not a thing (G)