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Left crank 170 mm square
- €8.99
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Campagnolo Super Record 11s ultra...
- €647.99
- €899.99
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Right crank Stronglight Z-light 170...
- €36.00
- €79.99
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Shimano dura-ace left crank screw
- €4.45
- €8.90
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The crankset of a recumbent bike plays a crucial role in transmitting the rider's power to the wheels, while providing optimal comfort and efficiency in the semi-recumbent position characteristic of this type of bike. Here are its main functions and features:
1. Power transfer:
As on any bicycle, the crankset of a recumbent bike is responsible for converting the energy generated by the movements of the rider's legs into rotational movement of the wheels. This is done through the pedals, cranks and chainring or chainrings.
2. Suitable positioning:
Since the rider is in a semi-recumbent position, the crankset of a recumbent bike is designed to allow smooth and efficient pedaling in this particular posture. This may involve specific adjustment of the length of the cranks to accommodate the rider's leg position and optimize power transfer.
3. Ergonomics:
Recumbent bike cranksets are often designed to provide maximum comfort for the rider. This may include pedals with a non-slip surface to ensure optimum grip, as well as contoured cranks and chainrings to minimize friction and reduce rider fatigue.
4. Compatibility with low rider positioning:
Like the handlebars, the bottom bracket of a recumbent bike is generally positioned lower than on a traditional bike. This helps maintain a low center of gravity, which can improve the stability and aerodynamics of the bike.
5. Setting options:
Some recumbent bike models offer bottom bracket adjustment options to accommodate the rider's individual preferences in terms of crank length, gear ratio and pedal alignment.
In summary, the crankset of a recumbent bike is designed to provide efficient power transfer while ensuring optimal comfort in the rider's semi-recumbent position. Its ergonomic design and its compatibility with the cyclist's low positioning make it an essential component of this type of bike.