BLACKBURN COUNTDOWN 1600 DIGITAL GAUGE FRONT LIGHT trek kids 1 x Bosch sprocket/chainring 20

1 x Bosch sprocket/chainring 20 teeth

so you're always in the right gear

1 Lock-On System

teeth large sprocket: 28T (2x10) / 25T (3x10)

12x148mm thru-axle

BLACKBURN COUNTDOWN 1600 DIGITAL GAUGE FRONT LIGHT trek kids 1 x Bosch sprocket/chainring 20Mountain biking at night can be a magical experience that transforms your familiar trails into an entirely different world. The Countdown 1600 has an easy to read backlit digital display that tells you exactly how many minutes of light remains in each of the 6 power modes. Keep the magic of the night ride alive by knowing exactly how much battery is left on each light level, so you're never stuck out in the dark. Features Power of 125 lumens