Atomic Professional 55mm Dual Strap Size:Long Both Quad Lock® Cases are

Both Quad Lock® Cases are compatible with wireless charging¹

Designed for SHIMANO's revolutionary XTR M9100 12-speed MTB groupset

We reengineered the upper for more durability

ensuring smooth clipping and unclipping during critical moments

Atomic Professional 55mm Dual Strap Size:Long Both Quad Lock® Cases areThe Atomic 55mm Professional Dual Strap creates a smooth connection from leg to liner to boot, with the upper section sitting on the liner tongue and the lower anchoring to the plastic cuff for progressive flex and improved energy transfer. Elastic shock absorbing layers help smooth out choppy terrain, while the outer static section delivers direct power when you need it. The adjustable design lets you fine tune responsiveness, and a quick release cam