NEW Shimano STEPS RT-EM600-M Disc Brake Rotor with Integrated Speed Sensor Magnet - 180mm, Center Lock, For eBike, Silver type_groupset-build-kits-gruppos Front Axle: 15 x 100mm

Front Axle: 15 x 100mm (non-boost)

It detects cars approaching from behind and provides audible and visible alerts when paired with your compatible Garmin smartwatch

Chain can be wrapped around the seat post for easy and compact transport

370 based hub with Shimano HG11 freehub body

NEW Shimano STEPS RT-EM600-M Disc Brake Rotor with Integrated Speed Sensor Magnet - 180mm, Center Lock, For eBike, Silver type_groupset-build-kits-gruppos Front Axle: 15 x 100mmShimano STEPS RT EM600 disc brake rotors for speed sensor systems provide consistent and powerful braking on rugged mountain bike trails. Using Shimano's Ice Technology, the rotor significantly reduces heat build up in the brake system to ensure consistent high performance braking even on the steepest downhill stretches Center Lock lockring design offers fast and easy installation For rear only with magnet bracket For narrow type brake pad only