A freehub is a type of bicycle hub that incorporates a ratcheting mechanism.
A set of sprockets (called a "cassette") is mounted onto a splined shaft of the freehub to engage the chain. The ratcheting mechanism is a part of the hub, in contrast to a freewheel, an older technology, which contains both the sprockets and a ratcheting mechanism in a single unit separate from the hub. In many high-end and midrange bicycles, freehubs have replaced freewheel systems.
A freewheel mechanism allows a rider to stop pedalling whilst the cycle is still in forward motion. On a cycle without a freewheel mechanism, the rider has to keep pedalling whenever the cycle is moving.
A freehub is a type of bicycle hub that incorporates a ratcheting mechanism. A set of sprockets (called a "cassette") is mounted onto a splined shaft...
sprockets on a multiple freewheel increased, and became physically wider, the freehub design overcame the axle/bearing problem associated with threaded hubs...
front wheels are generally 100 mm wide fork spacing, road wheels with freehubs generally have a 130 mm wide rear wheel hub. Mountain bikes have adopted...
Power meters using strain gauges are mounted in the bottom bracket, rear freehub, or crankset. Certain newer devices do not use strain gauges and instead...
index shifting (known as SIS, Shimano Index System introduced in 1984), freehubs, dual-pivot brakes, 8-9-10-speed drivetrains, and the integration of shifters...
the freehub has a narrow spline at one position, and each sprocket has a corresponding wide tooth on its inside face. Alignment spline on freehub Matching...
is used in combination with a ratchet gear in socket wrenches, bicycle freehubs, winches, and many other applications. Ladder Dogs (in the form of pawls)...
to base frame, fork, and suspension components such as a shock absorber Freehub: a ratcheting assembly onto which a cog or cassette is mounted that allows...
riding public. Another design innovation was the first practical Japanese freehub — the Unit-Hub - which combined freewheel and hub in one component (unit...
derailleur while the rider is coasting if paired with a fixed rear hub or a freehub with a slight resistance in the freewheel mechanism, which causes the chain...
newer style, in which the freewheel mechanism is in the hub, is called a freehub. Freewheels are also used in rotorcraft. Just as a bicycle's wheels must...
"the combined weight of Shimano SLX front and rear derailleurs, shifters, freehub and cassette comes out to about 1.3 kg (2.9 lb)". However, the NuVinci...
system, and that they have patents that last until 2032. The wheels have freehub with 24 points of engagement, and Kindernay differs by having a 12 mm through-axle...
bicycle, which fits on a freehub. It consists only of cogs, with no ratcheting mechanism, as the ratcheting mechanism is in the freehub. Chain gang A group...
than standard-sized sprockets. The smallest rear sprocket that fits on a freehub body is a 10 or 11-tooth, but with the use of a cassette hub, sometimes...
requirement of coordinated pedaling is the use of a jackshaft plus two freehubs, thus allowing one rider to coast while the other continues to pedal. This...
terms an “axial clutch” to disengage the ratcheting mechanism inside the freehub when coasting in order to reduce internal hub drag. In addition to wheels...
Global Information