The main differences between the XX1 and the X01 are:

YKK zippered hip pockets with key loop (left) and silicone gripper

As like its name "PARTICLE"

If you’re running the best crankset on the market

Equipped with two-position hydrophilic megol nose pads for a secure no-slip fit

Abus Cliffhanger Mips Helmet - M - Velvet Black PDP|PLP The main differences between theThe CliffHanger is the flagship trail model in the ABUS MTB series. When you're riding up and down steep hills on an enduro bike, the MTB helmet offers reliable protection. Lighter, better ventilated and with an adjustable TriVider webbing spreader the CliffHanger scores with these features. The special MTB adjustment system also ensures that the helmet sits comfortably and firmly on the head when rattling through the wildest of rock gardens. The