Dynamo Lights

Not sure if this is the right place for this, but the only thing I'm not loving about my dynamo setup is the cable running along the top tube. My frame is Reynolds 725, drilling it should be OK, especially near the ends of the tube, right?

Righto, first post*. May as well jump right in eh.

I would say no to this plan. A way you could do it that I've seen done a fair bit is to add a bottle cage boss to the down tube near the head tube and routing the cable down to the BB. If you have a decent enough hole between the DT and the BB, this should be pretty easy. From here you can either drill a hole out of the BB, maybe between the stays, or maybe route along a chainstay. I'd recommend reinforcing the exit point on the stay somehow if you were to do that, but the first option would probably be easier. You could then run the cable up under the fender to a fender mounted light.

Wire pass-through between fender and downtube by somervillebikes, on Flickr

Taillight hot wire entering fender from bottom bracket. by somervillebikes, on Flickr

• - I'm here sniffing out a freight forwarder