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2. Freehub - Wikipedia

   en.wikipedia.org/wiki/Freehub

   The chain gear sprockets wear faster than the ratcheting mechanism. Replacing individual sprockets on a freehub cassette is easy compared to that on some freewheels. The ball bearings for the wheel's axle are in the hub, but a multi-speed freewheel requires a considerable distance between the drive-side bearings and the drive-side frame dropout ...

3. Flip-flop hub - Wikipedia

   en.wikipedia.org/wiki/Flip-flop_hub

   Their main purpose is to allow changing between two (and only two) different gear ratios on one rear wheel without the added complications of a multi-gear derailleur or internal hub gear, or between fixed and freewheel options. By removing the rear wheel and turning it around, the rider can switch between the two options.

4. Cogset - Wikipedia

   en.wikipedia.org/wiki/Cogset

   On a bicycle, the cassette or cluster [1] is the set of multiple sprockets that attaches to the hub on the rear wheel. A cogset works with a rear derailleur to provide multiple gear ratios to the rider. Cassettes come in two varieties, freewheels or cassettes, of which cassettes are a newer development. Although cassettes and freewheels perform ...

5. List of bicycle parts - Wikipedia

   en.wikipedia.org/wiki/List_of_bicycle_parts

   Skirt guard or coatguard: a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage from catching in the wheel, or in the gap between the rim and the brakes; Spindle: an axle around which a pedal rotates; threaded at one end to screw into crank arms; Spoke: connects wheel rim to hub ...

6. Locking hubs - Wikipedia

   en.wikipedia.org/wiki/Locking_hubs

   The hub is a component where the wheel is directly mounted to, and is outside the axle. The benefits of unlocking hubs for normal road use are mainly found in increased fuel efficiency . When the front hubs are locked, even if no power is sent to the front axle (by means of a transfer case ), the turning of the wheels will still spin the front ...

7. Front freewheel - Wikipedia

   en.wikipedia.org/wiki/Front_freewheel

   Unlike regular bicycles, a front freewheel can make it possible to shift gears using a 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 to continue spinning with the wheel rotation. [1]

8. Shimano - Wikipedia

   en.wikipedia.org/wiki/Shimano

   When a larger number of rear sprockets came to be used, the freehub concept was re-introduced and is now the dominant rear hub type. Freehub style hubs are inherently stronger than screw-on sprocket and freewheel setups because it allows the bearings on the drive side of the hub to sit nearer to the end of the hub axle, reducing bending in the ...

9. Cycling power meter - Wikipedia

   en.wikipedia.org/wiki/Cycling_power_meter

   A freehub power meter uses the same strain gauges that are present in the crank power meters, but it is located in the rear wheel hub and measures the power at the rear wheel. The power measured by a freehub power meter will be slightly less than the power measured by a crank-based power meter due to power losses in the chain, pedals, and ...