Shimano patent suggests it's about to revolutionise its gearing system

Shimano might be looking to expand its gear ratios

Shimano nine-tooth sprocket design drawing
(Image credit: USPTO)

Bike component manufacturer Shimano might have plans to introduce its first ever nine-tooth sprocket on a 12-speed cassette, a new patent has revealed. 

Dated 3 November 2022, the US patent application is titled ‘rear sprocket assembly and lock device’ and comes with attached drawings of a 12-speed cassette, with a smallest sprocket counting just nine teeth. 

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