Bell: ALL-PURPOSE PERFORMER Fitness rides, adventure rides, family rides around the neighborhood...with its easy, approachable style, the Trace is an all-around performer that gives you lots of options. The Ergo Fit system offers a slim, easy-to-use dial with the option of integrated MIPS. plus No-Twist Tri-Glides provide smooth fit adjustment.But we didn’t stop there. We took it one step further by offering an LED version. We’ve incorporated a bright, 20-lumen rear LED into the retention system. It’s unobtrusive, highly visible and easily rechargeable with an included micro USB. That means you get comfort, style, performance, AND visibility for all your rides. CERTIFICATIONSCPSC Bicycle, CE EN1078VENTS16CONSTRUCTIONFusion In-Mold Polycarbonate ShellFIT SYSTEMErgo Fit LED™OTHER TECH AND FEATURESNo-Twist Tri-Glides™Sweat Guide™Rechargeable LED Lighted Dial (LED)Micro-USB Cord Included (LED)