unless your circumference is within 1-2% on the front vs rears, you will end up with drivetrain bind when in 4WD and things will not last long in this condition. Especially when riding in high grip conditions.......
example:
- 27" tire equals approximately 84.78" circumference.
- 28" tire equals approximately 87.92" circumference.
- This equals approximately 3.6% more on the taller tires which is too much of a difference.