keyboardmonkey wrote:When I've taken the pannier rack off this is my little lot that goes in the underseat pack:
(Not pictured: spoke key, folding tyre that fits on the loops outside the seat pack and Smart light that slots on to a smaller loop)
underseat pack contents 640px.jpg
I think the same or similar contents have been mentioned by others upthread, but I'm not sure if anyone has included a replacement rear derailleur hanger.
I don't always have a rear derailleur
I think I spy hex bits and ratchet hex socket there. I feel they're underrated by cyclists. I also swapped out my flick-multitool in favour of a lighter ¼" square driver 20cm sliding bar and sockets (including 14mm to put cranks on enough to get home) and adapters for the hex socket to ¼" drive and vice-versa, so I have a couple of options for most annoying double-sided fixings like racks, guards, brackets or brake arms. The hex keys in the flick were already duplicated by hex bits. The two drivers and bits weigh less than the flick and extra small tools for things missing from the flick.
I think I also have a CT-5 mini chain tool, quick links (SS and 5-8 speed), small adjustable wrench, some cable ties, tape, tyre levers, patch kit and mini floor pump. Last addition to my pack was a pair of strong blue nitrile gloves.