How long is the cable between the light and the generator on a Flex Mount (SL500)? Mille Stech Jensen August 28, 2017 07:00 Updated The cable for the front light is 60 cm, and the cable for the rear light is 50 cm. Related articles Can I mount a Flex Mount (SL500) light on an oversize handlebar (31,8 mm)? How much light does GO emit? Data Sheets SL500 Series I bought a Hub Light for V- Brakes (SL100), but I have disc/roller brakes. Is it possible to upgrade my Hub Lights to fit disc/roller brakes? Comments 0 comments Article is closed for comments.