Going fishing on a bike

[ufkacbln]

The US fishing rod holder is an option, but there is a simple U lock bracket called the UGH from ABUS

Fits to the rack and then holds the U lock in place

Designed for the weight of a U lock a rod should not have any issues

 

[ufkacbln]

The other option more often used for crutches is a piece of PVC tubing with an end cap

This can then be fitted to the rack quickly and easily using a "P clip" , "U clip", or a piece of metal strip

Depending on clearance and the size of the tubing used, this can fit between rack and wheel enabling full use of panniers

 

[sidevalve]

Take up fly fishing. Not much kit required, 3 and 4 part rods readily available. As @Hugh Manatee says, a waistcoat or a small bag is all that's required .... And a hip flask :-)

Just take the flask !!!
Seriously strap the rod to the crossbar wind can make it a hell of a pain over your shoulder. When I used to go fishing I one day actually did a check to find what I REALLY needed and it wasn't much - just dump the stuff you don't need. Fasten the rod to the bar with either velcro straps or the old fashioned toe-clip type straps, no need for fancy clips [the Americans just love gadgets]

 

[Gravity Aided]

Yes.