Kits arrived very quickly, but had to chase last delivery (brake sensors) so did not delay undertaking convertion. Very simple to do, instructions ok and tools provided. There are some helpful documents on the internet if stuck. Can convert to peddle assistance only by not fitting throttle.

Only real problem was having to buy a narrower tyre (26x2) as the old one (26x2.1) kept coming off , it is old a probably stretched

These are very clever devices. They are very efficient by cutting the power to the motor (via the controller) on the slightest touch of the brake lever. The only problem I had was, during installation, my existing (old) brake cables were too 'rough' to pass through the sensor. Consequently I had to buy new cables which passed through the sensor with ease. Great product.