ABK Mountain Bike Helmet Neon Size:Medium 5cm measured center of BB

5cm measured center of BB to top of the top tube

Made of German High Quality chrome-vanadium tool steel

Available Frame Sizes: Small / Medium / Large

Oversized 29 x 3” Tires

Whether you want to attend a group ride in Zwift

ABK Mountain Bike Helmet Neon Size:Medium 5cm measured center of BBPerfect helmet for all mountain or enduro riding. Extended rear coverage offers more impact protection than traditional cross country helmets. In mold Aero Dynamic design with 20 vents for better airflow. Construction adds structural integrity and protects the EPS foam underneath from dings and chips without a weight penalty. Removable visor shields your vision from sun, rain and debris. Detox ratcheting retention system in back dials in the perfect