A bicycle crankset includes a chainring, a spider, and a crankarm. The chainring has a disk member and a plurality of teeth on an edge of the disk member to engage a chain. The spider is connected to the disk member of the chainring, and has a connecting bore and a plurality of recesses on an edge of the connecting bore. The crankarm has a plurality of protrusions to engage the recesses of the spider. The connecting bore is eccentric relative to the chainring, and the crankarm is able to be connected to the chainring in different angles by engaging the protrusions of the crankarm with different of the recesses of the spider to provide various paths of motion of the chainring.
BICYCLE CRANKSET WITH ECCENTRIC CHAINRING AND ADJUSTABLE CRANKARM
2018-12-13
Patent
Electronic Resource
English
BICYCLE CRANKSET WITH ECCENTRIC CHAINRING AND ADJUSTABLE CRANKARM
European Patent Office | 2019
|European Patent Office | 2015
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