Shimano 105 Pure R7120 2x12 Mechanical Groupset

If you want pro-level performance, reliability, and a modern 12-speed drivetrain—without the premium price tag—Shimano 105 Pure R7120 is the perfect upgrade for your road bike. At Bike Clinique, we’re fully manufacturer-trained and have extensive experience fitting Shimano 105, so you get a flawless install, precise setup, and ongoing support.

Why Choose 105 Pure R7120 at Bike Clinique?
Shimano 105 Pure R7120 brings many of the features from Dura-Ace and Ultegra to a more accessible package. You get a crisp, wide-range 12-speed drivetrain, hydraulic disc brakes, and all the durability you expect from Shimano. The slightly heavier materials don’t compromise on function—this is a groupset built for real-world riding, big climbs, and everyday reliability.

What’s Included:

• Shifters/Brakes: 105 ST-R7120 dual-control levers with BR-R7170 flat-mount hydraulic calipers. Slim, comfortable, and easy to modulate, with individually adjustable reach.

• Rotors: Ultegra RT-CL800 Center Lock, 160mm front and rear, with IceTech FREEZA cooling for fade-free, quiet braking on any descent.

• Crankset: 105 FC-R7100, 2x12-speed, your choice of 50-34T or 53-36T chainrings. Hollowtech II arms for stiffness and low weight.

• Crank Lengths: 160, 165, 170, 172.5, 175mm (same as Di2).

• Front Derailleur: 105 FD-R7100, braze-on, 2x12-speed, with toggle link construction for fast, precise, cable-actuated shifting and easy adjustment.

• Rear Derailleur: 105 RD-R7100, 2x12-speed, Shadow RD design for crisp, stable shifting and low-profile protection. Compatible with 11-34T and 11-36T cassettes.

• Cassette: 105 CS-HG710, 12-speed, 11-34T or 11-36T, Hyperglide for seamless, quiet shifting under load. Compatible with standard 11-speed Shimano Road freehub bodies.

• Chain: SLX/105 CN-M7100, 12-speed, 126 links, with chain lock and SIL-TEC coating for quiet, smooth, and long-lasting performance.

Specs at a Glance:

• 2x12-speed (mechanical shifting)

• Crank Lengths: 160, 165, 170, 172.5, 175mm

• Chainring Options: 50-34T, 53-36T

• Cassette: 11-34T or 11-36T

• Brake: Hydraulic disc, flat mount, 160mm rotors

• Freehub: Shimano 11-speed Road

• Front Derailleur Mount: Braze-on

• Color: Black

How Does It Ride?
Shimano 105 Pure R7120 is all about confidence, comfort, and reliability. The wide-range 12-speed drivetrain makes tough climbs easier and keeps your cadence smooth on any terrain. Braking is powerful, fade-free, and quiet—even on long descents. Riders love the crisp shifting, improved ergonomics, and the peace of mind that comes with a pro-level install.

Why Trust Bike Clinique?
With full Shimano manufacturer training and years of hands-on experience, you get expert advice, a perfect install, and ongoing support. We’ll check your frame compatibility, talk through gearing and setup options, and provide a clear estimate before any work begins.

Ready to upgrade your ride with 105 Pure?
Book a consultation, schedule your upgrade online, or call us on 07951125843. Pop into our Wimbledon workshop for a demo, get honest, jargon-free advice, and let us help you unlock the best of Shimano 105 for your next adventure.