<ul><li>Internal gear 8-speed hub for use with any IS 6-bolt disc brake <li>Rotary gear selector with no protrusions outside of frame<li>Direct drive in first gear allows use of smaller chainwheels<li>6061 aluminum hub shell with 13/32" slotted solid axle (185mm overall axle length) <li>Gear ratio range of 325% <li>Includes 3-spline 23 tooth cog and a TSS86 twist shifter <li>speed: 8-speed<li>axle: 13/32"x135mm nutted<li>hole: 32h<li>color: silver<li>weight: 1880g</ul>