Hey Octopus, thanks for the write up. I've done a lot of long rides but never on a fixed gear. I'm thinking about trying some SF rando brevets (200k and 300k) on a fixed gear this year, and your tips are very helpful. I'm doing an 85 mile hilly fixed gear ride next Monday, after which I'll have a better idea about whether it's possible.

Do you have any tips for small riders? The hardest part of riding a fixed gear uphill for me is losing power. I weight 125 lbs and I normally climb fast but spinning a high cadence, around 70+ rpm. I find it challenging to stay on top of a gear like 42x16 on steeper climbs, I kind of bog down and go anaerobic from the muscle strain. I don't have huge leg muscles like other long distance fixed riders I've seen. Any tips are appreciated. Thanks!