Features: ---Mounts to both brake/clutch reservoirs and rails * ---For rails from 0.50" to 1.25" in diameter - includes hardware to adjust for different sizes ---Standard size double socket arm - overall length: 3.69"; socket to socket: 3" ---Round 2.5" diameter base with AMPS hole pattern and 1" ball ---Constructed of powder coated marine grade aluminum ---Genuine RAM Mount: Part # RAM-B-174-202U ---Manufacturer's lifetime warranty ---Made in the USA * Note: The RAM-B-174U base can mount to either the brake/clutch reservoir or any round rail that is 0.5" to 1.25" in diameter. To see if the RAM-B-174U base will mount to your motorcycle, check the hole spacing of the base against your clutch/brake reservoir. The holes centers have a minimum width of 0.94" and a maximum of 1.58".