Time Trial / Time Trialling / TT

Tad lower personally. 105 for me on Sunday I think.

This year I rode J2/9 (25) and J4/16 (50) x 2, all laps of the same circuit

J2/9: 56:23 104"
J4/16: 1:55:30 104"
J4/16: 1:52:27 106" (I pedalled harder as it was Nationals)

Depends so much on the course and your fitness

Same gear for a 50 as a 25?

Maybe. If you're going to do the old-school 50 time of twice your 25 plus 5min, then the slight cadence drop ends up being about right given the longer duration.