[Partial QUOTE=xenologer;14890468]Multiple possible solutions are becoming apparent.... also, found a seatclamp cable hanger online that appears possibly as much as 1cm shorter than what i had
http://www.google.com/products/catal...77144792875188 this might buy just enough room for cantilever brakes' straddle wire need to order one and find out... [/QUOTE]
That is really a short one and surely should solve the stated problem. To be safe it could be combined with the wide staddle also. If you are not running a fender, it is a good idea to use an old reflector mount or similar attached to the brake bridge to catch the straddle wire should the clamp bolt fail and let the straddle wire drop down.