TREK TYRO UNI-SIZE CHILDREN'S BIKE HELMET exclude_standard_shipping Recommended nipple length: 12mm

Recommended nipple length: 12mm

Features M Part Gravel Rear Wheel

1 ball bearings

Shifters: MicroSHIFT Advent X Trail trigger shifter SL-M9505-R (with nanowire)

The chainring teeth are longer and shaped like a saw blade to perfectly engage the Eagle™ chain

TREK TYRO UNI-SIZE CHILDREN'S BIKE HELMET exclude_standard_shipping Recommended nipple length: 12mmProtection for your pint sized cyclist Tyro is a dedicated children's helmet packed with the same performance and comfort found in adult helmets. A Fidlock magnetic buckle lets kids secure the chin strap easily, and an easy to adjust rear dial conforms to a wide range of head sizes. Features In moulded EPS shell with additional rear coverage for protection and durability Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid friendly