Raceware - GoPro TT Extension Mount Mount Type_Junction Box 0 is the older version

0 is the older version with 2 screws

Perfect for long runs and powerful braking

It also fits the 820 as the 820 uses the same fitting as the 515

is a light 62mm clincher wheelset with an outstanding price / performance ratio

Raceware - GoPro TT Extension Mount Mount Type_Junction Box 0 is the older versiondescription All of the Raceware 3D Printed products are designed; manufactured and hand finished in the UK. GoPro TT Bar Mount All of the Raceware 3D Printed products are designed; manufactured and hand finished in the UK. The Raceware GoPro TT bar mount is designed to hold the camera or light below the TT extensions. The clamp is flexible enough to allow installation by opening the clamp to fit over the bars. They are made from 3D printed nylon and