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Shimano components

Shimano was founded in 1921 in Sakai, Japan — a city with a 600-year tradition of precision metalworking — and has spent the past century building the case that bicycle components work best when designed as a system. The company began as a freewheel manufacturer and spent the following decades expanding its engineering scope across the entire drivetrain. In 1973, Shimano launched Dura-Ace, its first complete component group, establishing the system integration philosophy that defines the brand today: derailleurs, shifters, brakes, and chainrings engineered to work together. That philosophy has carried Shimano to the top of professional cycling, where Dura-Ace Di2 has become the drivetrain of choice for riders who demand precision at the highest level. The RA Cycles Shimano collection covers 665 products across road, gravel, and mountain — from flagship Dura-Ace R9200 to everyday accessories, pedals, shoes, and wheels.

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About Shimano

Shimano was founded in 1921 by Shozaburo Shimano in Sakai, Japan — a city with a 600-year tradition of precision metalworking. The company began as a freewheel manufacturer and spent the following decades expanding its engineering scope across the entire drivetrain. In 1973, Shimano launched Dura-Ace, its first complete component group, establishing the system integration philosophy that defines the brand today: derailleurs, shifters, brakes, and chainrings engineered to work together rather than as standalone parts. That philosophy has carried Shimano to the top of professional cycling, where Dura-Ace Di2 has been the drivetrain of choice for Tour de France contenders for over a decade. Learn more at Shimano's official website.

At RA Cycles, the Shimano collection spans 665 products across every discipline and price point. Road riders will find Dura-Ace R9200 and R9270 Di2 at the top end, with Ultegra R8100 and 105 R7100 Di2 below — all offering wireless electronic shifting at their respective price points. Gravel riders have GRX with its wide-range gearing and dedicated ergonomics. Mountain bike components run from XTR M9100 through Deore XT and SLX. The collection also includes Shimano wheels, SPD and SPD-SL pedals, and cycling shoes across road and mountain disciplines.

Explore related collections: browse all groupsets, or shop by discipline — road bikes, gravel bikes, and mountain bikes. For wheel upgrades, see the full Shimano wheels range.

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R&A Cycles - 50th Anniversary

50 YEARS AND COUNTING

From a Brooklyn storefront to flagships in Walnut Creek and Miami, from handwritten mail orders to a fully digital custom bike builder — RA Cycles has spent half a century doing one thing: serving riders who demand the best. That half-century belongs as much to you as it does to us. The riders who kept coming back, who sent their friends, who trusted us with bikes that matter — you're the reason we're still here. Here's to the next fifty.

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