Rubber ends on the arms to keep them on your head

24mm - This suits Shimano cranks with a straight 24mm spindle (also fits some FSA

The Trail Boss's consistent

Whether racing the clock to squeeze in another lap or exploring further than you ever have

TLD D4 Carbon Helmet - XL/2XL - Lined Up Black Virtual Parent Rubber ends on the armsD4 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 UD carbon