Swiss precision, from high-precision machining to perfect assembly, combined with intelligent detail solutions have made the 240 hubs what they are today: a legend. The strengths of the new 240 hub 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 cycling.

Ratchet System Technology
The 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 Technology
The pressure angle is the angular amount in degrees that a hub freewheel turns in the empty before it can convert the rotary motion of the crank into propulsion. The smaller the angle, the faster your 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 pawl hubs, on the other hand, only a few pawls engage with each other at the same time. In addition, the bearing surface of pawl hubs is quite small, whereas with the Ratchet System, the entire face surfaces intermesh, which makes for a much smaller point load. This results in the legendary reliability of the Ratchet System hubs and also the unmistakable sound!

Hub

• Brake type: disc brake 6-hole
• Axle: thru axle
• Material: aluminum
• Diameter axle: 12 mm
• Installation width: 148 mm
• Number of holes in the spoke flange: 32

Main information

• Application area: MTB
• Type: rear wheel

Compatibility

• Compatibility cassette: 12-speed

Other

• Weight: 231 g

Details

• Freewheel body: Shimano 12SP Light (ASL12)
• Freewheel system: Ratchet EXP 36.