Compatible on any TerraTrike model. This Promax brake lever set includes a locking hand brake lever on BOTH brakes. The lock acts as a parking brake. Just press the button and you won't have to worry about your trike rolling away. This eliminates the need for the velcro strap parking brake. These are the same brakes come standard on all of our current trike models (excluding the Rover Single Speed).
To set the parking brake, just squeeze the brake lever, press the button and release the lever. To disengage, simply squeeze the brake lever again and the locking portion releases.