Updated from the previous version, this new design is compatible with rear drive E-Bike wheels Installs in seconds to fit any Park Tool TS2 or TS-2.2 Wheel Truing Stand Allows TS2 to fit wheels with quick release and solid axle hubs up to 215mm wide and 29" wheels with the tire installed Allows TS2.2 to fit wheels with quick release and solid axle hubs up to 230mm wide Speciallysized adapter bosses allow TS-2 to fit thru-axle hubs up to 135mm wide and TS.2.2 to fit thru axle hubs up to 155mm wide Can be used with Park Tool TSTA or TS-2TA Thru-Axle Adapters (not included) to fit wide thru-axle hubs (up to 200mm with TS-2 and up to 190mm with TS-2.2) Ideal for fat, downhill, tandem and 29" wheels Retailers are not permitted to sell on the Amazon.com marketplace unless authorized in writing by Park Tool