5/3/4/5/6/8

square block pattern tread

it lowers your centre of gravity to make the bike more stable during your ride

They are designed for use with Magura brakes and are available in a resin-organic compound:

Fox Tecbase Bib Shorts - XL - Black PLP|Largest Cog 5/3/4/5/6/8The Tecbase Bib Liners are designed specifically to pair with all Fox mountain bike shorts, making it an essential piece of kit. Ride all day in comfort courtesy of the triple density chamois that'll keep you comfy during long days in the saddle. Rear pockets provide storage for bottles and essentials and there is a small stash pocket the leg for those emergency gels. Who's this item for: Riders after a comfortable and breathable bib for long rides