Park Tool CC-3.2 Chain Wear Indicator Size:OS Bontrager Tyro Children's Bike Helmet

Bontrager Tyro Children's Bike Helmet

Air dry or tumble dry on a low setting if care label allows

provides tenacious grip in the corners

5 in Tilt function (with bikes) Fits 1

Rotate dome to sound chime

Park Tool CC-3.2 Chain Wear Indicator Size:OS Bontrager Tyro Children's Bike HelmetDesigned to accurately indicate when a chain reaches . 5% and . 75% which most chain manufactures recommend replacement. Chain wear indicator is a simple go or no go tool. Updated to be longer, more accurate and features permanent measurement markings Accurately indicates when a chain reaches 0. 5% and 0. 75%, the points at which most chain manufacturers suggest replacement