Minimal rolling resistance

With a focus on long wear-life

The newer version has the edges rounded to make them easier to line up during wheel changes and less likely to cut in crashes

Zero Loss Engagement for fastest shifting

and Bryton

TLD D4 Polyacrylite Helmet - XS/S - Qualifier Blue/White New Arrival Minimal rolling resistanceD4 reigns king atop downhill podiums and BMX events across the globe. Available in carbon, composite and polyacrylite. Details are what makes the D4 the most coveted full face in mountain biking. Prioritising safety while balancing weight through premium construction and materials, D4 incorporates Mips protection with an EPP chin bar and anatomical cheek pads with emergency release. Features Mips C2 Rotational Impact Brain Protection System Offered in