The BK10 puts a lot of light in a tightly-focused beam on the road ahead, with enough spill to illuminate road signs. In that way, it resembles my B&M dynamo lights, but with fewer artifacts and greater brightness. Not really suited for off-road riding unless you supplement it with a floody light. The handlebar mount, by contrast, has a cheap feeling to it, though probably adequate. Acebeam doesn't seem to sell standalone mounts to put on multiple bikes (I emailed Acebeam about this and never received a response). Luckily the light has a 1/4-20 threaded hole on the bottom, so you can use camera mounts or gopro mounts with adapters.
