When installing bike tires, with or without CushCore, the last part of the tire can be the most difficult part. Bead Bro clips between the tire bead and rim, secures to the rim with a set screw, and clips to a spoke. This allows for use of both hands while installing the remaining portion of the bead without it popping out. Holds the bead down in the rim channel, allowing you to use both hands to complete the remainder tire installation - like having a third hand. Locks bead to the rim using a rubber bumper - won&';t scratch or damage you rim. Designed for any rim width - multiple spoke holder channels adapt the Bead Bro to every rim width Compatible with carbon and alloy wheels