Garmin Varia eRTL615 Ebike Rear View Radar with Taillight Model=Lightning Bolt Front }Shimano Ultegra R8000 Chainring -

}Shimano Ultegra R8000 Chainring - 53 Tooth 11-Speed 110mm BCD For 53-39T Combination

}Jagwire 4mm Sealed Alloy End Caps Bottle of 50 Black

Bearing Type Cartridge Color Black S

Brake Compatibility Rim Brake Color Black Defined Color Black Hub Drilling 36 ISO Diameter 406 / 20" BMX Manufacturer Spec ERD (mm) 391 Material 6061 Aluminum Rim Depth (mm) 17 Rim Material Alloy Rim Width (External) 36 Wheel Size 20"

Weight: 42 g

Garmin Varia eRTL615 Ebike Rear View Radar with Taillight Model=Lightning Bolt Front }Shimano Ultegra R8000 Chainring -See and be seen with Varia rearview radar Varia RCT715: Rearview radar with a built in camera that continuously records and automatically saves footage if it detects an incident Varia RTL515: Rearview radar and tail light Varia eRTL615: Battery free E Bike specific rearview radar and tailight It pairs with your Edge bike computer, other Garmin device or compatible smartphone to alert you of vehicles approaching from behind up to 153 yards (140 meters)