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@greeno
Grateful for any input on this.
From googling I see TRP 8.4 mini brakes were intended for campag and sram setups, and then they bought out the 9.0's for newer shimano levers due to different pull ratios.
Does anyone know which set requires more pull? I assume the 9.0s require less pull, otherwise they wouldn't have had to bring a new version out as the 8.4s would have still done the job. Is that sound logic and correct?
Used to use tekro mini-v's on my old cyclocross which were amazing, but when I had to replace my levers with newer Tiagra 4700, I never got them to work very well. Therefore looking to try some TRPs and am wondering which will be more powerful. I'm less concerned about clearance.
Does a longer brake arm require more or less pull, and in theory which should be stronger?? I don't quite get the physics.
Ta.