ISIS Drive system

The front flap is perfect for spares and tools

All models require SRAM XD compatible 11 or 12-speed cassette

wall thickness and diameter with the corresponding anatomically optimized bend for various riding dynamics

12% polyester

TLD A1 Helmet - XL-2XL - Drone Steel Green PDP|PLP|Rail Material ISIS Drive systemTroy Lee Designs has become synonymous with high end, premium helmets. Their full face models have been sought after for years and can be seen on podiums all over the world. The A1 continues this legacy with their open face helmets. Who's this item for: This helmet is definitely geared more towards Enduro style riding it is also suitable for all around trail riding. Construction: Polycarbonate shell moulded with EPS liner. Extends downs the sides and