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Modified JK TechTech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.
PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM
Better question is why does a 35x17 tire cost more than a 35x15? 17" tire is LESS rubber...
Could be the bead structure, it will be approx 6" longer and may require more reinforcement due to total force on it at any given pressure. Just a guess