Category : Bearing HubHub Hole Number : 24HolesFreehub : HGSpoke Hole : 20 - 28Position : Front + RearNumber of Holes : 24 HolesMaterial : Aluminum AlloyAxle : THRUBraking System : Disc BrakeKOCEVLO StarRatchet Road Disc Brake Hub NEW Ratchet System driver mechanism is extremely durable, reliable and can be serviced without special tools in minutes, thanks to its simple press fit assembly. The press fit assembly also allows all hubs to work in almost any currently existing axle configuration, making them compatible with almost every bike. The contact free seals and high precision build guarantee smooth bearings; every bit of the rider's energy is transformed into forward momentum. These features and the super lightweight design of all the hub parts highlights the racing legacy of this classic hub.DescriptionHub NameKOCEVLO V-Brake hubHubs TypeRoad Bike HubsBraking SystemRoad Disc-brakeFront Holes24HRear Holes24HFront axle100x12mmRear axle142x12mmBearing Front2Bearing Rear4Ratchet36T (Can be Up to 60T)Color: BlackWeight:Front-Hub : about 122gRear-Hub : about 200gCassette Body Type: Shimano/SRAM 11 Speed (Will fit with 8, 9, 10 Speed Cassette with Spacer) or SRAM XDR 12S