Look at saddle selection and saddle angle (particularly if you're not able/willing/prepared to adjust anything else)....if you are rolling your pelvis away from perineum pressure then a flexed lower or even mid back will be making your neck extend more= more pain more early on in a ride.
Look at saddle selection and saddle angle (particularly if you're not able/willing/prepared to adjust anything else)....if you are rolling your pelvis away from perineum pressure then a flexed lower or even mid back will be making your neck extend more= more pain more early on in a ride.