About Sram 39T/130mm 11 Speed Chain Ring Black

Description

Genuine Sram replacement rings for Road and Sram Red cranksets Genuine Sram replacement rings for Road and Sram Red cranksets Not compatible with new Sram hidden bolt style cranks 110mm=Compact 130mm=Standard Road.

What is the purpose of chainring?

Oval chainrings maximize the part of the stroke where power is produced and minimize resistance where it isn't. As a direct consequence, Oval rings enhance a cyclist's ability to spin with a smoother power delivery and feel much easier on legs while climbing. Meaning you will go faster and get less tired.

About Sram Brand

SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1x12), DoubleTap, dedicated 1x11 mountain and road drivetrains and SRAM Red eTap.The company grew organically and through acquisitions to become a high-end cycling component brand, selling under the brands SRAM, Avid, RockShox, Truvativ, Quarq, and Zipp.