DT Swiss 240 Straightpull

have been further developed with the new RATCHET EXP technology. The super reliable freewheel system ensures direct power transmission without losses. Exactly what athletes need: perfect transmission of their power and absolute reliability, so they can focus exclusively on's cycling.Ratchet System TechnologyThe patented freewheel system with high-precision pulleys guarantees maximum load capacity and reliability. Thanks to the no-tool concept, the system is very easy and quick to maintain.Pressure Angle TechnologyAs pressure angle is the angular amount in degrees which a hub freewheel turns in the empty, before he can convert the rotary motion of the crank into propulsion. The smaller the angle, the faster the leg power reaches the ground. However, it's important to know that there are limits to the minimum angle possible, as the reliability of the freewheel system also depends in part on the angle. What makes Ratchet System hubs truly unique is that all the teeth of the two discs mesh simultaneously every time. In ratchet hubs, on the other hand, only a few pawls engage at the same time. In addition, the bearing surface of pawl hubs is quite small, whereas with the Ratchet System, the entire face surfaces engage, providing much less point loading. This results in the legendary reliability of the Ratchet System hubs and also when turning the toothed discs against each other the unmistakable sound! Hub - Number of holes in the spoke flange: 28 - Brake type: Disc brake Center Lock - Axle: Thru axle - Material: Aluminum - Diameter axle: 12 mm - Installation width: 142 mm Main information - Type: Straightpullnabe - Application area: MTB - Type: Rear wheel Compatibility - Compatibility cassette: 9-speed Miscellaneous - Weight: 195 g Details - Details: - Freewheel body: Sram XD MTB (ASRAM) - Freewheel system: Ratchet EXP 36.