Portland Design Works Boxy E Bike Headlight 700 350 Lumen ModelNumber=K2626 Color Black Ring Position Type Chain Color Black Ring Position Type Chain Retaining Single Ring Tooth Count 50 Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Maximum Head Circumference 58 Gender Age Adult Minimum Head Circumference 52 Color Velvet Black Size Medium Visor Included No Multi Impact No Weight 270 Helmet Style Road Helmet Style Tri TT Defined Color Black } TECH SPECS padding: 8px