Shimano 105 Shadow RD-R7100 12-speed Rear Derailleur

The Shimano 105 RD-R7100 12-speed rear derailleur - mechanical shifting precision at its best

The RD-R7100 from the Shimano 105 R7100 series is a mechanical 12-speed rear derailleur for road bikes. Thanks to its precise and smooth operation, you can enjoy reliable shifting performance on all your rides, without worrying about battery charge levels. RD-R7100 features the so-called Shadow design, i.e. it is flat to prevent damage and has a single tension construction, which increases efficiency. Due to the high aluminium content, it weighs only about 250 grams and thus a good 50 grams less than its electronic counterpart. The purist and high-quality look of the rear derailleur also fits very well on your road bike. The bearings of the guide pulley wheels contribute to the smooth shifting performance.

Specifications:

Series:

105 R7100

Application:

Road

Gearing:

12-speed

Mount:

standard (Direct Mount compatible)

Capacity:

41-tooth

Compatibility:

Shimano Road 12-speed

Compatibility - Chains:

HG 12-speed

Technical Information:

Derailleur Pulleys:

11-tooth

Outer Cage Material:

aluminium

Inner Cage Material:

aluminium

Other Materials:

aluminium, steel, composite material (GFRP), stainless steel

Compatibility:

Shift/Brake Lever:

ST-R7120, ST-RX820, ST-RX610

Cassette:

CS-R8101-12 (11-34 only), CS-R7101-12, CS-HG710-12

Chain:

CN-M7100, CN-M8100, CN-M9100, CN-M6100

Features:

• mechanical 12-speed rear derailleur from the 105 series for road bikes
• precise and permanently reliable shifting
• smooth and effortless gear changes at any speed
• flat design prevents getting stuck on obstacles
• single tension for more efficiency and low noise
• puristic premium look
• painted cage plates
• guide pulley wheel bearing
• 2 pivot bushings, fluorine-coated

Technology:

Shadow RD
Shadow rear derailleurs from Shimano have a very flat profile, allowing for a more aggressive riding style by minimising the risk of getting stuck on obstacles. In addition, the single preload ensures that the rear derailleur does not hit the chain stay even on very uneven ground. All of this contributes to a quiet, clean-operating gearshift.

OT-RS900
For Dura-Ace, Ultegra, 105, GRX and other 11-speed or 12-speed road and gravel rear derailleurs, Shimano has developed the special OT-RS900 cable housing. It is less stiff than the conventional OT-SP41 housing and is therefore better suited to the tight curve where the cable is routed from the frame to the rear derailleur. Thanks to OT-RS900, problems with the barrel adjuster can be prevented and the rear wheel can be removed more easily. OT-RS900 is not intended for use on the shift/brake lever side.

Models:

long:

Max. Largest Sprocket Teeth:

36-tooth

Min. Largest Sprocket Teeth:

34-tooth

Max. Smallest Sprocket Teeth:

14-tooth

Min. Smallest Sprocket Teeth:

11-tooth

Max. Chainring Difference:

16-tooth

Total Capacity:

41-tooth

Manufacturer Number:

IRDR7100

Contents:

• 1 x Shimano 105 RD-R7100 Shadow rear derailleur
• 1 x Shimano OT-RS900 240 mm cable housing
• 1 x long nose end cap