Ever since the first beat-up old newsboy bikes were modified to ride in the dirt, mountain biking has been about defying convention and finding new ways to make the ride better.

And each new style of riding requires a perfect solution. EX1 is the world's first drivetrain system specifically developed for the unique demands of the E-MTB. With proven SRAM 1x technology as its DNA, this group's heart is the EX1 cassette, which allows optimal steps between cogs for more purposedriven shifts and providing the best gear range for midshipmotor E-MTBs. Each EX1 component is engineered to perfectly complement the system, and the result is quiet operation, intuitive shifting, increased battery life and greater durability. EX1 opens the door to a brave new world of mountain biking. 


SRAM X-Sync Sprockets - Built with the needs of E-MTB riders in mind, and incorporating the same X-Sync chain management technology found in every SRAM 1x drivetrain, EX1 offers 14-, 16- and 18-tooth sprockets for Bosch motors.  Proven SRAM technologies adapted for the demands of midship-motor E-MTBs

Please note: This item is only compatible with SRAM EX1 E-MTB components.

X-SYNC - SRAM X-Sync provides the highest level of performance and durability. The SRAM X-Sync tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-Sync chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-Sync rings are an integral part of the SRAM 1X drivetrain.

Material: Aluminium

Chainwheel, number of teeth: 14,16,18

Fitting for derailleur: SRAM EX1 E-MTB

Direct Mount Standard: Bosch

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