Nathan Neutron Fire Runners' Headlamp Apparel_Men's Cycling Vest quieter rotor with best-in-class heat

quieter rotor with best-in-class heat management

equipped with a Shimano GRX 11-speed drivetrain

39T MAX FRONT DIFFERENCE 16 CABLE ADJUSTER X COLOR SERIES COLOR AVERAGE WEIGHT 200g

BB386 bottom bracket shell

6 inches (271 mm)

Nathan Neutron Fire Runners' Headlamp Apparel_Men's Cycling Vest quieter rotor with best-in-class heatBring added safety and color to your night run with the lightweight and powerful Neutron Fire. The primary LED kicks out a crisp 115 lumen spotlight, while the two side strobes offer RGB Light red, green, or blue LED's for added visibility. Lightweight, low profile runners' headlamp 5 lighting modes: low, medium, high, sprint, strobe RGB Light red, green, & blue LED options for side strobes 115 Lumens LED spotlight Replaceable AAA batteries.