I got a couple of motorcycle video systems in for review this past summer, including the Thinkware M1 and this system, the Blueskysea B1M. Both get the job done in terms of recording activity around your motorcycle (or other types of vehicles), but there are some key differences.
At $159.99, the Blueskysea B1M is by far the less expensive of the two systems, but it still held up and performed well during a long test period, where it was installed on my scooter, a 2007 Yamaha Morphous 250. Similar to the Thinkware, it consists of two Sony-made 1080P HD cameras with 135 degree wide angle lenses that are tethered to a central hideable controller that records video to a micro SD card. There’s no screen with this system; videos are downloaded to your smartphone