Maybe a scratch nick or marks from "shop wear" ultra rare ceramic braking surface. 100X9mm QR front- no skewer. 26 clinchers, comes with presta valve adapter.This item is in the category "Sporting Goods\Cycling\Bicycle Tires, Tubes & Wheels\Wheels & Wheelsets". The seller is "timebehindbars" and is located in this country: US. This item can be shipped to United States.