BICYCLE WITH REAR SUSPENSION AND RELATIVE SYSTEM OF TRANSMISSIONS
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Oct 23, 2024
filing date -
Oct 23, 2024
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Abstract
A bicycle includes a frame, rear wheel, suspension system of the rear wheel with respect to the frame that allows a predetermined relative displacement between them, and drivetrain system for transmitting the motion from a crankset to the rear wheel. The drivetrain system includes a crankset fixed to the frame, a hub and pinion assembly fixed to the rear wheel that is rotatable about a common pivot axis thereof, and a drive chain placed to connect them directly to each other. The crankset and hub and pinion assembly are subjected to reciprocal displacement by the action of the suspension system, where at least one among the crankset and the hub and pinion assembly has a free stroke device placed to allow both a forward and backward free angular stroke of the chain with respect to the respective pivot axes of the crankset and/or of the hub and pinion assembly.
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