As like its name "PARTICLE"

They're uncomfortable

The main differences between the XX1 and the X01 are:

you simply push and roll the plug into the hook of the fork

A useful set of brushes to get into all those nooks and crannies where grunge can end up on your bikes

Abus Cliffhanger Mips Helmet - M - Velvet Black PDP|PLP As like its name "PARTICLE"The 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