This is the RAM Handlebar Mount kit for the Garmin 176, 276, 376, 378 and 478 as well as aviation models 296, 396, and 496. The kit includes the mounting adapter, the diamond base, a medium arm and the U-bolt handlebar mount. This kit will mount to handlebars up to 1" in diameter. Larger U-bolts are available for different handlebar diameters.
NOTE: For motorcycle use we recommend the GRSP3H RAM Handlebar Mount kit. The GRSP3H uses the cradle from the Garmin supplied mount which has a safety-lock feature.