Compared to the Pro4, the Pro5 hub features a new zero drag labyrinth seal and an improved ratchet and pawl system, with new springs. Both greatly reduce drag as well as increase durability and load capacity - Featuring an offset 6 pawl freehub design, where 3 pawls are engaged at any time and an increased POE (now 108), Hope was able to achieve the right balance between speed of pick-up, load capacity, drag & durability. In real-world terms gives a speedy feel on the trail while keeping crank movement to an acceptable level without compromising the free running of the hub or its reliability - 6-bolt/44mm BCD International Standard disc mounting dimensions - HG 8-11sp: Not compatible with HG 11sp road cassettes TECH SPECS table{border-collapse:collapse;width:auto;max-width:100%;} td{text-align:left;padding:12px;font-weight:350;word-wrap:break-word;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Model Pro5 Front/Rear Rear (HG 8-11sp) Axle/Spacing (mm) 12x150 Hole 32 Spoke J-Bend Brake 6-Bolt Color Silver Weight -