In most cases, due to the small size and weight of the control boxes, a double-sided velcro tape is sufficient for attaching the electronics boxes to the bike. We recommend this holder if you want a sturdy mount of your motorcycle. The holder has 4 mm holes at a distance of 12 mm on the base side. The upper contact surface is equipped with double-sided adhesive tape for the bow, which avoids its slipping because of vibrations.