longer distances on the road past dark

if i'm going to put in a few 50 milers after dark i will need;

• headlight, white (blinky or more)
• food and water back-up
• extra clothes

i guess i'll re-mount the rack and panniers, roadside repair could be tricky if i do anything other than fix a flat, even then i'll need to be well out the vehicle right of way and carry sufficient light for the repair