Not heat.
It could actually be anything but the bottom bracket.
Swapped out seat post, saddle, wheel and skewer already so narrowing to BB area as only started after they took it out. Either way it's back in bring looked at. They are loving my hope freehub in the workshop...
Stem? Handlebar clamp? Pedals? Torqued all nut and bolt? Drivetrain indexed and adjusted? Inc. limited screw and trim?
@yeahdext started
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Not heat.
It could actually be anything but the bottom bracket.