7iDP Project 21 Trail Helmet Matte Ice White XS/S Weight-16 Big Betty works perfectly on

Big Betty works perfectly on the rear wheel when combined with the much-loved Magic Mary

Weight: 35g

The Level TL replaces the DB5 in SRAM’s lineup

Open and aggressive tread for excellent grip and self-cleaning Flat Protection Tread and Sidewall Color Black Defined Color Black ISO Width (mm) 61 ISO Diameter 584 / 650b / 27

Extends axle out to clear derailleurs in special needs applications

7iDP Project 21 Trail Helmet Matte Ice White XS/S Weight-16 Big Betty works perfectly onERT System (Energy Reduction Technology) Patented 4mm layer of lightweight polymer material dissipates both linear and rotational impact energy 21 cooling vents Easy position visor angle CRV crash release visor System 7iDP rear dial adjuster with adjustable mounting points TF Through flow goggle ventilation Clip closure Meets CE, CPSC, AS Standards Sizes: XS S, M L, XL XXL Model Project 21 Trail Color Matte Ice White Size XS S Size (cm) 52 55 Shell