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Why don’t people use time trial bikes for these races?
Definitely doable but a few problems I considered:
possibly limited position (my Shiv would work but some bikes not tall enough to allow sustainable position)
limited tyre clearance - fat tyres really help on ultra races
they're often smaller or odd shaped so fitting 'luggage' becomes a problem
they're covered in proprietary bits and bobs so if something fails it's gonna be very difficult to fix (tricky cable routing etc)
gains aren't actually that big, especially once you cover the aero frame in luggage
Interesting to read that Abdullah didn’t bring sleeping gear, Just water, emergency bivvy and repair kit.
Why don’t people use time trial bikes for these races? It seems those Titanium bikes with relaxed geometries are just a trend?