Park tool spoke tension meter tm1the key to wheels that are strong and reliable is having spokes that are properly and uniformly tensioned the tension meter accurately and reliably measures the absolute tension of each of the spokes in a wheel as well as the relative tension between all the spokes in a wheel easy to use and priced affordably it works on nearly any bicycle spoke no matter what the diameter material or shape not just for the experienced mechanic the tm is for anyone buildin