Press Release: Shimano Delivers Premium Mechanical Road Shifting with New 12-Speed SHIMANO 105 Groupset

shimano 105 12-speed mechanical review

“For riders who love the feel and sound of Shimano’s crisp mechanical shifting, the new Shimano 105 R7100 12-speed groupset delivers premium performance features and updated ergonomics along with the simplicity of mechanical shifting. The lightweight SHIMANO 105 mechanical components offer reliable, easy-to-maintain shifting with a wide gear range so riders can pedal steady up climbs or focus on the winding road ahead without worrying about battery levels.”

Shimano 105: Shifting Performance

“SHIMANO 105 mechanical 12-speed features the RD-R7100 rear derailleur infused with SHADOW RD technology. This offers a low profile and single-tension construction, giving riders a smooth, efficient, and silent performance. The new FD-R7100 front derailleur features toggle-link construction so riders can enjoy crips, reliable shifting, whether going up to the larger chainring or dropping down to the small one.”

FD-R7100 Front Derailleur

  • Brazed-on
  • Fast, precise front shifting
  • Weight: 96g
  • MSRP: $44.99 USD / €49.99 EUR

shimano 105 12-speed mechanical review

RD-R7100 Rear Derailleur

  • Direct mount attachment
  • Super low profile, single tension construction
  • Weight: 249g
  • MSRP: $64.99 USD

shimano 105 12-speed mechanical review

Shimano 105: Wider Gearing Range

“With the jump to 12-speed, SHIMANO 105 R7100 delivers the high and low gearing ranges that riders want while offering a thoughtful gear-step progression for finding the right cadence on any terrain. Gearing options include an 11-34T and 11-36T cassette paired with the FC-R7100 HOLLOWTECH II 12-speed cranksets with 50-34T and 52-36T chainring options. With more gearing options and a wider range, riders can climb more comfortably with an efficient cadence and still have big enough gears to prevent spinning out mid-descent or when sprinting on the flats.”

FC-R7100 Crank

  • 2×12-speed
  • Chainring combinations: 50-34T and 52-36T
  • Crankarm lengths: 160mm, 165mm, 170mm, 172.5mm, 175mm
  • Weight: 754g (50-34T)
  • MSRP: $179.99 USD / €182.99 EUR

shimano 105 12-speed mechanical review

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)
  • MSRP: $65.99 USD / €76.99 EUR

Shimano 105: Enhanced Ergonomics & Powerful Control

“Designed to fit any hand size and shape, the ST-R7120 Shift/Brake levers provide a relaxed shifting experience with next-generation ergonomics for more comfort and control on the bike. The R7100 levers also feature a shorter reach – the distance from handlebar to lever – and offer lighter, smoother lever action for better braking control.”

shimano 105 12-speed mechanical review

“Braking is further optimized with the new Shimano 105 BR-7170 calipers that 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.”

shimano 105 12-speed mechanical review

ST-R7120 Hydraulic Disc Brake Set (Calipers 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 (caliper and lever)
  • MSRP: $354.99 USD / €319.99 EUR

SM-RT70 Disc Brake Rotors

  • Disc Brake Rotors (140/160mm)
  • Weight: 133g
  • MSRP: $45.99 USD / €65.98 EUR

shimano 105 12-speed mechanical review

Learn more at the Shimano Website

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