BBS02 brakes

Does anyone know what the bbs02 brake sensors require to apply the brakes (e.g. Closed circuit or open circuit or amount of resistance)

I have hydraulic brakes and want to use my current brake levers by adding a reed sensor or something.

You can try something like this: http://www.empoweredcycles.com/products/8fun-bafang-bbs02-hwbs-hidden-wire-brake-switch
Or
http://www.greenbikekit.com/bbs01-bbs02-brake-sensor.html

Corners said:

You can try something like this: http://www.empoweredcycles.com/products/8fun-bafang-bbs02-hwbs-hidden-wire-brake-switch

Click to expand...

They are hydraulic brakes so that won't work, and I don't want to buy anything since shipping to Australia is expensive.

IntoxicatedHippo said:

Corners said:

You can try something like this: http://www.empoweredcycles.com/products/8fun-bafang-bbs02-hwbs-hidden-wire-brake-switch

Click to expand...

They are hydraulic brakes so that won't work, and I don't want to buy anything since shipping to Australia is expensive.

Click to expand...

Ah, true.

Use one of these
http://www.emax-ebikes.com.au/store/p24/Cutoff_Brake_Sensor_-_Hydraulic_Brakes_.html
They are in Oz anyway.

It is possible to remove the switch from the brake lever use some heat shrink to protect the wiring joint and you have the same thing.
I glued a magnet to the lever
the motor will run with the switch unplugged so i think its normally open switch

What I have found is simply starting to back pedal instantly cuts power. I was concerned at first but it works great and is free.

a slight flick of the lever when changing gears or an accidental grab of throttle when already on the brake in an off road situation or the like means it wont bite back
the switch already has a magnet inside i just open it up remove and glue a larger one to the lever

You will find other threads on here, this is a pretty well grilled topic.

Yes, reed switch or a hall sensor is the go. They are very cheap, small and light. Hence freight is so cheap it's irrelevant.

Em3ev also sell similar plug and play cut offs, no, they are not cheap.

The cheapest solution is what I will be testing when I get mine back = some of the brake levers that are supplied have a sensor/magnet arrangement built into them. I have a set in this state. I have disassembled it and will glue a magnet on one side, and the hall sensor to the other.

the main problem is not what to use to sense it, its having the right plug fitting on the other end is where it gets expensive. That's the advantage of dissembling a cheapo (USD3) set of brake levers to get the hall sensor/magnet + spares ftw. For the record, I didn't buy them specifically - I already had them.

Easy to cut the sensor out of the existing lever using a hacksaw and epoxy it to the underside of the hydro lever, I've done several.