basically you can always go fast while aiming because your endurance does not drain (you gain endurance in fact)
tested this using minimal display bars mod

I believe this happens because you are in a game state that considers your character to be "not sprinting" (because he is aiming) which does not drain endurance but the shift function to go fast still works.


It would be good to fix this issue by somehow enabling endurance drain on this state.

DONT REMOVE the aiming function for the bicycle, justs fix the endurance drain. The feature to aim on the bicycle is a great feature that lets you both:
-see what is ahead
-always move to where you are pointing at (while you can hold ant direction key)

edit: i believe this also prevents gaining xp as long as you are aiming too

edit2: aiming with bicycle also levels nimble