>>980064i used general tech-y shirts for a while, but switched to a dedicated cycling jersey because:
1. Longer in the back so it covers you totally when leaning forward
2. Pockets in the back -- I have a saddlebag too but sometimes it's nice to reach into my jersey pockets for food when I don't want to stop
3. Dat zipper in the front for temperature control, idk maybe those arent only on cycling jerseys
YMMV