Post by
MinisterofDOOM »
https://forums.nicoclub.com/ministerofdoom-u16506.html
Thu Dec 18, 2008 9:08 pm
As far as longevity, that's entirely dependent on the tire itself. 20'' vs 18'' means very little compared to the other aspects of the tire.
Ride quality will definitely be better with 18'' than with 20'' tires. Tire sidewalls help suspension absorb bumps. Since 20'' tires will have to have less sidewall than 18'' tires, there's less shock absorbtion through the tires. You'll feel the road more through the 20''s. For better and for worse.
Definitely don't let tread life alone scare you away from 20'' tires if they're what you really want to go with, though. A high quality 20'' tire will last as long as a high quality 18'' tire.