Shimano introduces 12-speed Premium Mechanical Shifting with the launch of the new SHIMANO 105 groupset

With the introduction of the SHIMANO 105 R7100 Mechanical 12-speed groupset, Shimano brings the pure joy of self-powered adventure to the massive community of cycling enthusiasts looking for reliable, easy-to-maintain componentry at an affordable price.

The new, lightweight SHIMANO 105 Mechanical groupset offers Premium Mechanical Shifting, which means riders can capture that natural riding feeling without worrying about battery levels – while still enjoying the comfort and range of a premium 12-speed groupset.

SHIMANO 105 Mechanical 12-speed comes with an RD-R7100 rear derailleur infused with SHIMANO SHADOW RD technology. This offers a low profile and single-tension construction, giving riders a smooth, efficient, and silent performance, while the FD-R7100 front derailleur features toggle-link construction. This means riders can rely on hassle-free shifting, whether going up to the larger chainring or dropping down to the small one.

With the jump to 12-speed, SHIMANO 105 R7100 Mechanical delivers the high and low gearing that riders want, along with an intelligent progression of gear steps in between. This is the result of optimized drivetrain components, including 11-34T and 11-36T cassette options, while the FC-R7100 HOLLOWTECH II 12-speed cranksets have 50-34T and 52-36T chainring options.

Using 50-34T chainrings with an 11-34T, or even an 11-36T cassette means riders can climb any mountain while keeping their cadence efficient and manageable up those long, steady climbs. Additionally, SHIMANO 105 Mechanical’s semi-compact 52-36T setup will reduce the chance of spinning out mid-descent or when sprinting on the flats.

Designed to fit any hand size and shape, the ST-R7120 Shift/Brake levers provide a relaxed shifting experience with the next-generation ergonomic mechanical shift levers, ensuring more comfort and control.

SHIMANO 105 Mechanical’s integrated cables remove the clutter from the cockpit and provide a more focused riding experience – perfect for long days in the saddle.

Braking is optimized for use with current SHIMANO 105 BR-7170 calipers, making braking effortless and more efficient. The redesigned brake calipers offer 10% more clearance with the brake rotor – meaning less rubbing and a quieter ride. The system is light, durable, and maintenance-friendly, with targeted innovation to simplify the brake bleeding process. SHIMANO 105 R7100 Mechanical is only compatible with hydraulic disc brakes.

Thanks to a lighter, smoother lever action and expanded braking control area, the reach – the distance from handlebar to lever – is also reduced.

Each component of Shimano 105 Mechanical is engineered to work in perfect harmony. With the refined 12-speed gear system, riders will have peak efficiency and accelerating performance for any situation on the road.

FC-R7100 Crank

• HOLLOWTECH II Crank Set
• 2 x 12-speed
• Chainring combinations: 50-34T and 52-36T
• Crankarm length: 160mm, 165mm, 170mm, 172.5mm, 175mm
• Weight: 765.6g (50-34T)

CS-R7101-12 Cassette

• HYPERGLIDE 12-speed
• 11-tooth small cog for optimal efficiency
• Compatible with 11-speed freehub bodies
• Cassette combinations: 11-34T and 11-36T (CS-HG710-12)
• Weight: 361g (11-34T)

FD-R7100 Front Derailleur

• Brazed-on
• Fast, precise front shifting
• Weight: 96g

RD-7100 Rear Derailleur

• SHIMANO SHADOW RD
• Direct mount attachment
• Super low profile, single-tension construction
• Weight: 249g

ST-R7120 Hydraulic Disc Brake Set (Shifters and Levers)

• Dual control levers
• New blade shape gives a shorter lever access curve
• Refined ergonomics and shaping create a new lever position
• Weight: 612g / pair

SM-RT70 Disc Brake Rotors

• Disc Brake Rotors (160 / 140mm)
• Weight: 285.6g

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NOTES TO EDITORS:

1. Embargo: Thursday, August 31, 2023, at 18:00 CEST.
2. About Shimano Europe: Founded in 1921, Shimano is dedicated to helping its customers get closer to nature, supporting people to realize their dreams and create new lifestyles. That comes with the desire to create outstanding cycling products and apparel. With over 100 years’ experience in creating internationally renowned bicycle components, Shimano is proud to have developed products that continue to take countless athletes to victory and provide the means for limitless global bicycle journeys. For more information see: road.shimano.com