Main: 86% polyester

but we recommend sizing down

Ideal for CX or XC racing pits

At just 5g in weight

PRO Chainring Nut Wrench PDP|PLP|Brake Rotor Type Main: 86% polyesterPut that screwdriver away and start using the correct tool to remove your chainring nuts bolts. The Pro Bike Gear chainring nut wrench provides the 'fanged teeth' required to hold your slotted chainring nuts in place while you tighten your chainring bolts. It provides a narrow and wide version to suit most slotted nuts and also gives you a 9mm and 10mm nut socket for added versatility (handy if you have nuts on your derailleur cable clamp or brakes).