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I knew they were too skinny (it was purely road setup apart from the tyres and flat pedals) but I didn't even think I'd be racing so it was too last minute to swap the bars (and I'm kinda trying to avoid buying new shit for every race - run what ya brung). But I never felt limited with the tyres only the gears and the bars pissed me off (oh and the levers but they're always annoyed me)
hippy-
Off road it’s nice to be able to loosen my grip as the road get rougher due to the extra leverage of the wider bar.
Previously ridden on 42cm which was fine except I find myself gripping the hood/drop more to keep the bike stable.
I’d recommend go a bit bigger, 42cm cowbell or 44cm Cowchipper if you’re coming from 38cm roadie.
Plus; more space for handlebar bag is super nice.
edscoble
Going from 39cm to 44cm wide bars was probably the best upgrade I've ever done to improve my bike (maybe after better tyres).