The cable to the switch is quite long, I have the light mounted on the standard brake hole and the cable is wrapped around my steerer twice to take up the slack.
One thing worth noting is that you can't charge if you're powering the light, so night riding (something I'd imagine you'll do a lot of on endurance races) will have to be prepared for with day-time charging. Not particularly difficult to arrange, but worth bearing in mind.
The cable to the switch is quite long, I have the light mounted on the standard brake hole and the cable is wrapped around my steerer twice to take up the slack.
One thing worth noting is that you can't charge if you're powering the light, so night riding (something I'd imagine you'll do a lot of on endurance races) will have to be prepared for with day-time charging. Not particularly difficult to arrange, but worth bearing in mind.