Bike Bell Yiyer Old School Style Bike Speedometer Analog Odometer With Mounting Hardware, Classic Style Mechanical Odometer For 24â€-27.5†Bicycle Mini Bike Speedometer Mph Billiard Stroke Trainer, Pelota De Práctica, Billar Easy to install: all of them are simple installation, only takes a few minutes, old school style bike speedometer installation steps: mount the reader on the handlebar, attach the gear to the axle of the front wheel, link them by the cable, no need for batteries and adjustment setting Lomodo 2 Pair Bicycle Twist Grip Gear Shifters 3X7 Speed You will get: 1 pack old school style bike speedometer, 1 pair bike rear view mirrors and 1 pack bike bell, totally 4 pieces, convenient for you to install them on your bicycle It is not for the quick release wheels that go above 38 MPH Metric measurement: the speedometer dial is in big size, easy to read, measure the riding speed in KPH, which is the most widely used measurement, not in MPH. Note: a kilometer is 0.62 mile, when the speedometer needle indicates 30KPH, the speed is approximately 18.6 miles per hour 4 pieces bicycle rear view mirrors bike cycling adjustable mirrors rotatable handlebar mounted plastic side convex mirror in 2 size (3 inch and 2.28...