Alex EM30 Disc Rear Wheel Shuffle 1x kits are designed for

1x kits are designed for use with rear derailleurs or internally geared hubs only

Smooth shifting action of the rear derailleur thanks to its superior construction and materials

And the technology that has been packed in makes it SRAM's longest-lasting chainring set yet

The 10-Series uses economical bearings

Maximum control through intuitive shifting with 1x7 wide range gearing

Alex EM30 Disc Rear Wheel Shuffle 1x kits are designed forDesigned for ebike or adventure touring, these wheels are built to withstand heavier loads and greater torque. Built with stainless steel 14 gauge spokes. 30mm inner width to accommodate 2. 4 2. 8 tires. Made with components rated by their manufacturer as suitable for e bike use 32 Spokes