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No, I wouldn't run disc brakes on a fix. It's more the carbon rim thing. After the fucking ballache mine caused I'd go for simple, strong alu rims in 32h built by someone decent. Maybe I'd use Zipp or something decent but not cheap Chinese rims that only really work with tubeless.
I'm not sure I have anything to suit, I mean, I'm going to have a new bike and depending on what it is I may not be able to use some of my current wheels. I have two front wheels - SP dynamo, both CL disc, both 32h, one is QR, one is TA with QR adapter, one has DTSwiss 512db rim one has 65mm deep carbon clincher.
I also have a set of Ultegra hubs laced to HPlusSon thingie rims. They basically did PBP and went into the cupboard. 32h too. All built by @scherritI prefer dynamo, others (I'm looking at your @frank9755) prefer batteries. I love the fit and forget nature of dynamo and you can essentially ride yourself out of electrical trouble, if you fuck up and miss a recharging point. Basically one less thing to worry about/plan for which suits me. It was also my commuting bike and it's lovely not having to mentally remember when I last charged my light batteries... just roll...
Doing it fixed (at least that's the plan) so will essentially have 3 ways of slowing. I know everyone's on the disc hype, and my next geared bike will have them, but for this I can't find a fixed frame that will have a disc brake attachment and allow forward/backward movement of the wheel to tension the chain - as I'll be using different gears. I was looking into the Trek Crockett frame but not really sure if it's worth it just to improve the braking when it will suffice using the Dolan FXE. I hope.
Will hunt for one of those then.. unless you're selling any?
Dynamo hub really worth the extra faff and energy? Or will keeping batteries charged up be even more of a faff? Thanks for your priceless info!