An accurate, durable, easy-to-read liquid-filled compass that simply clips onto any 7/8" or 1" handlebar. Luminous 1" floating dial on jeweled pivot provides smooth rotation. Easy to remove and replace, the compass clip needs to be removed for accurate readings. Weighs only a few grams. Also as accurate and durable as the compass, is an easy to read, liquid filled -20°F to +160°F thermometer. It too clips onto any 7/8" or 1" handlebar. One inch diameter dial. The clip clock is specially made for us and features a sweep-second quartz movement that is not really intended for outdoor use but the prototype survived two seasons on Ed’s 500 single so we think it’s OK. YMMV, however.