That doesn't make sense. If locking up was an issue they wouldn't leave the 160 on the front would they? The only thing I can find is clearance issues with people using post-mount Spyre calipers.
^ This - 99% of your braking power is from the front, in fact under maximum braking force your back brake is useless as the rear wheel has effectively no contact with the ground (any more force and you start to endo/stoppie)
That doesn't make sense. If locking up was an issue they wouldn't leave the 160 on the front would they? The only thing I can find is clearance issues with people using post-mount Spyre calipers.