Shimano 7900 Dura Ace 11-21

€129.99
Save €20

Specifications:

Application: Road
Gearing: 10-speed
Gradation: 11-21, 11-23, 11-25, 11-28, 12-23, 12-25, 12-27
Sprocket Material: steel, titanium
Freehub Body Compatibility: Shimano MTB
Note: compatible with Shimano Road 11-speed with a 1.85 mm spacer

Technical Information:

Series: Dura Ace 7900
Spider: 2 (aluminium)
Recommended Chain: HG 10-speed (e.g. CN-6701)

Features:

- HG cassette
- weight-optimised sprocket design
- improved shifting function for more precise shifts and less weight
- super-light, high-strength aluminium carrier
- the four largest sprockets (7 to 10) made of titanium for less weight, higher rigidity
- diverse gradations
- nickel-plated steel sprocket , anodised lockring

Technology:

HG
In combination with Hyperglide (HG) chains, HG sprockets ensure fast and responsive indexed shifting. HG sprockets have specially positioned shift ramps and tooth profiles that improve chain control during shifting. Fast, fluid and silent shifting is the result. Conventional sprockets cause the chain to ride up and over the gear teeth before engaging the sprocket. HG sprockets guide the chain quickly and directly to the next sprocket without override.

Models:

11-21:
- Gradation: 11-12-13-14-15-16-17-18-19-21 t
- Manufacturer Part Number: I-CS790010121

11-23:
- Gradation: 11-12-13-14-15-16-17-19-21-23 t
- Manufacturer Part Number: I-CS790010123

11-25:
- Gradation: 11-12-13-14-15-17-19-21-23-25 t
- Manufacturer Part Number: I-CS790010125

11-27: sold-out
- Gradation: 11-12-13-14-15-17-19-21-24-27 t
- Manufacturer Part Number: I-CS790010127

11-28:
- Gradation: 11-12-13-14-15-17-19-21-24-28 t
- Manufacturer Part Number: I-CS790010128

12-23:
- Gradation: 12-13-14-15-16-17-18-19-21-23 t
- Manufacturer Part Number: I-CS790010223

12-25:
- Gradation: 12-13-14-15-16-17-19-21-23-25 t
- Manufacturer Part Number: I-CS790010225

12-27:
- Gradation: 12-13-14-15-16-17-19-21-24-27 t
- Manufacturer Part Number: I-CS790010227