2mm diameter handlebar and there are 4 size options available

Chainline:

Upper Materials:

They offer basic anti-abrasion protection and level 1 impact protection

Endura Xtract Gel Bib Shorts II - XL-36 - Black PLP|Largest Cog 2mm diameter handlebar and thereThe Endura Xtract Gel Bib Shorts II are an affordable bib short made from a plush microfibre faced fabric with flatlock seams and a seam free inside leg for a luxurious feel that won't create pressure points or irritate your skin. 400 Series antibacterial multi density gel pad has micro wick technology to keep things as dry as possible down there and is 15mm at its thickest point to provide comfort in the saddle for 2 3 hour stints. Who's this item