Shimano Ultegra CS-R8101-12 12-Speed Cassette

The Shimano Ultegra CS-R8101 12-speed Cassette - extensive compatibility and efficient shifting

The CS-R8101-12 is a 12-speed cassette from the Shimano road bike series. In contrast to the CS-R8100, it is compatible with both electronic and mechanical groupsets. It features Hyperglide+ technology, which was first tested in the MTB sector and ensures seamless shifting even under heavy load. Even when you are riding out of the saddle or sprinting, you can shift safely and immediately. The gradations have been selected to ensure high gear efficiency in all situations as well as optimal acceleration. The enlarged teeth of the pinions also contribute to this. A special plus point is its compatibility: CS-R8101 not only fits on the special 12-speed freehub body, but can also be used with conventional Shimano road freehub bodies. All sprockets are made of steel, with two lightweight aluminium sprocket carriers.

Specifications:

Application:

Road

Gearing:

12-speed

Gradation:

11-30, 11-34

Sprocket Material:

steel

Freehub Compatibility:

Shimano Road, Shimano Road 12-speed

Technical Information:

Series:

Ultegra R8100

Spider:

2 / aluminium

Recommended Chain:

HG 12-speed (e.g. CN-M8100)

Compatibility:

Shift/Brake Lever:

ST-R8150, ST-R8170, ST-R7120, ST-R7170, ST-RX820, ST-RX610, ST-R8060, ST-R9250, ST-R9270, ST-R9160, ST-R9180

Rear Derailleur:

RD-R8150, RD-R7100 (11-34 only), RD-RX820 (11-34 only), RD-R9250, RD-R7150 (11-34 only)

Chain:

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

Features:

• Hyperglide+ technology for fast, seamless shifting with maximum pedal load
• sophisticated 12-speed gradation and larger teeth for first-class efficiency and optimum acceleration in all situations
• compatible with 12-speed and 11-speed road freehub bodies
• suitable for electronic and mechanical groupsets
• nickel plated sprockets

Technology:

Hyperglide+ / HG+
Hyperglide+ is the efficient further development of the Hyperglide system by Shimano. These are shifting aids and specially shaped sprocket teeth that make shifting to larger or smaller sprockets suppler, smoother and quieter. The system of small rivets attached to the side of the sprocket and milled or pressed-in ramps ensures that the chain is already carried along by the next sprocket during the shifting process before it leaves the previous sprocket. Hyperglide+ is optimised for faster shifting and shifting under load and has a more efficient chain connection, holding power and power transfer when combined with a compatible HG chain. Compared to Hyperglide, the shifting time is reduced by one third and the pedal stroke is noticeably reduced. HG+ enables a completely new chain stability and thus offers a safe riding experience.

Models:

11-30:

Gradation:

11-12-13-14-15-16-17-19-21-24-27-30 t

Manufacturer Number:

ICSR810112130

11-34:

Gradation:

11-12-13-14-15-17-19-21-24-27-30-34 t

Manufacturer Number:

ICSR810112134

Contents:

• 1 x Shimano Ultegra CS-R8101-12 cassette
• 1 x Shimano aluminium lockring