MotoLight have a "radial" caliper mount and they also have a high output LED that is VERY bright. Have a set for the MGX (not installed) and have had them on my RK for several years. Great riding visibility (at night) and even better driver visibility which is frankly more important to than the night riding benefit. Bright white or if you want the Euro look go with the Bright yellow. A bit less driving viz at night but great during the day. With Daytona coming up ask about the rally discount of 10%. Great folks who offer top notch service and install/maintenance advice and are happy to give folks a deal. Been riding with different variations of MotoLights for 15-20 years. Most PD motor cops ride them. Harley or BMW.