Park tool dial indicator gauge ts2dia dial indicator bracket and set that measures a wheels lateral and radial run out to0 01mmpark tool dial indicator gauge ts2di features mounts easily to any ts 2 or ts 22 truing stand enables user to set and follow tolerances for each wheel includes two dials mounting brackets and specially designed tips weight 2lbsbuy park tool dial indicator gauge ts2di from chain reaction cycles the worlds largest online bike store