SRAM XG-899 飞轮组 8速 11-48 齿 black

SRAM EX1 E-bike cassette MTB sprocket set

Ever since the first, totally rundown and old bicycles of American newspaper boys were modified for mountains, gravel and forests, mountain biking has been about defying tradition and improving driving. And every new driving style needs a perfect solution. EX1 is the world's first propulsion system designed to meet the unique needs of e-mountain bikes. With the proven SRAM 1x ™ technology as its DNA, the EX1 cassette is the heart of this group. It allows optimal gear shifts for more targeted gear shifts and the best gear ratio for mid-range e-MTBs. Each EX1 component was designed to be the perfect complement to the system. The result is smoother running, intuitive switching, longer battery life and more resilience. EX1 opens the door to a beautiful new world of mountain biking.

Highlights:

• Cassette made of hardened tool steel
• E-bike specific gear ratio for mid-engines
• Improved chain contact
• Symmetrical shift geometry for fast, precise shifting
• Gears: 8-fold
• Teeth Pinion: 11-48t
• E-BLOCK ™ technology
• Pinion gradation: 11, 13, 15, 18, 24, 32, 40, 48
• Application: E-bike
• Recommended Chain: SRAM PC EX1 (not included)
• Weight: 559g (manufacturer)

technologies:

E-BLOCK ™

The E-BLOCK switching technology is a fundamental new development for derailleurs. On the E-BLOCK ™ cassette, the chain has a fixed link position on each pinion. The pinions are designed to work with inner and outer links. This allows optimum switching performance inwards and outwards. The result is precise and robust shifting in any situation, even with full engine assistance.

Delivery:

• 1x SRAM EX1 8-speed cassette E-bike MTB sprocket set 11-48_ teeth black