SRAM EX1 - The Ultimate E-MTB Drivetrain
SRAM EX1 E-Bike Upgrade Kit | Groupset 1x8
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 purpose-driven shifts and providing the best gear range for mid-drive 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 whole new level of mountain biking.
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EX1 is the world’s first drivetrain system specifically developed for the unique demands of the E-MTB. The group’s heart is the EX1 cassette, which allows optimal steps between cogs for better shifting and the best gear range for mid-drive E-MTBs. With a motor you just don't need all the nuances of gears found in 9-12 speed drive trains so SRAM made bigger steps, beefier cogs, and spaced the cassette to the outside to improve chainline in the lower gears. All of which make for a much improved drivetrain for E-MTB's.
Each EX1 component is engineered to complement the system, resulting is quiet operation, intuitive shifting, greater durability, and surprise! - even increased battery life. EX1 takes electric mountain biking to a new level.
Please Note: The Sram EX1 Cassette fits onto a standard Shimano/SRAM cassette body and not an 11 spd driver body.
XG-899 Cassette features
EX1 Rear Shifter features
PC-EX1 E-MTB Chain
Designed to handle the higher torque loads that E-MTB's have to endure while still running smooth and quiet. When paired with the SRAM EX1 XG-899 8-speed cassette it handles the big steps between cogs with ease. Nickel-plated outer chain plates and chrome hardened pins help with chain durability.