Shimano 105 R7100 12S Disc group

Shimano 105 R7100 12S Disc group

Crankset: 170mm - 50/34 / Teeth: 11-34
$769.87
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Shimano 105 R7100 12S Disc group

Shimano 105 R7100 12S Disc group

$769.87

Shimano 105 12-Speed Mechanical Groupset

Elevate your performance with SHIMANO 105

SHIMANO 105 is a mid-range road groupset that inherits racing technologies and design to deliver a unique balance of performance, reliability, and affordability. With its updated interface and 12-speed mechanical shifting, Shimano 105 brings a fresh level of precision and control to road cycling.


Optimised Grip & Comfort

The redesigned Dual-Control levers provide:

  • Ergonomic shape for a wide range of hand sizes

  • Reduced distance between hood and lever

  • Improved control with less effort

  • More efficient braking and shifting performance


Built for Every Rider

A drivetrain designed for versatility and real-world riding:

  • Sub 1:1 gear ratio for steep climbs

  • Smooth and controlled effort management

  • Wide gearing range for different riding styles

  • Confident performance on varied terrain


Advanced Braking Performance

Smooth, powerful, and reliable braking

  • New piston design for improved braking efficiency

  • Increased pad clearance (10%) reduces rotor rub

  • Consistent modulation and control

  • Low-maintenance hydraulic system


Key Components & Features

Crankset — FC-R7100

  • HOLLOWTECH II construction

  • Excellent balance of stiffness, weight, and efficiency

  • Q-factor: 148 mm

  • Speed: 2x12

  • Chainline: 44.5 mm

  • Compatible bottom brackets: SM-BBR60 / SM-BB72-41B


Cassette (12-Speed)

  • Progressive gear ratios for smooth cadence

  • Optimised for acceleration and efficiency

  • Compatible with 12-speed drivetrains and 11-speed road hubs

  • Aluminium spider + steel sprockets


Shifters & Brakes — ST-R7120 + BR-R7170

  • Mechanical 12-speed Dual Control levers

  • Improved ergonomics and reach

  • Adjustable lever travel

  • Hydraulic disc brakes with Shimano mineral oil

  • Compatible with ICE TECHNOLOGIES pads


Front Derailleur — FD-R7100

  • Smooth, low-effort shifting

  • Easy and precise adjustment

  • Integrated cable tension adjustment

  • Max chainring: 50–52T

  • Total capacity: 16T


Rear Derailleur — RD-R7100

  • SHIMANO SHADOW RD design

  • Stable and precise shifting

  • Wide gear compatibility (up to 36T cassette)

  • Total capacity: 41T


Chain — CN-M7100

  • Designed for 12-speed systems

  • Improved chain retention and engagement

  • Durable and efficient performance

  • Non-reusable quick link

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