Silca TIRE PROTOCOL RCR Size:700x38mm Look down the center and 210000013556 Look down the center and you’ll see a low ramped directional tread transition for forward rolling efficiency with a braking surface that bites hard when slowing down The Muc Off Tubeless Rim Tape is made from our own proprietary performance material with a pressure sensitive adhesive to provide just the right amount of stretch whilst maintaining the durability and strength needed to create a lasting airtight seal our rigid carbon fiber beads never stretch designing it with the largest volume possible while still adhering to the regulations set forth by our governing body overlords who shall not be named