The Park Tool Professional Truing Stand accepts wheels from 16" to 28" with or without tire removed. Both axle-holding uprights move simultaneously, always centering wheel hub with calipers, regardless of hub width. Can be bench-mounted or vise-held. The standard of the industry. If a forward or backward tilt is desired, use with Truing Stand Tilting Base (TSB-2), sold separately. For precision work, the TS-2 should be used with the WAG-4 Professional Wheel Alignment Gauge. Opens up to accept hubs. 17 lbs.