Originally Posted by
scorpiox
... drilling holes into the top tube
Sight unseen - I may be off. But drill through the head tube (as per last post). Go around the steer tube, and take it out right before the seat joint.
I assume you can't take it down the down tube under the BB and to the chain stays. Thought I'd mention.
Do you plan on the housing going in side the frame? Think about smaller holes and stops. There are also stops used for this (for bigger holes) so look for them.