View Full Version : 1990 ProStar 190 Trailer Tires

11-13-2006, 03:18 PM
I have a 1990 ProStar 190 with the MasterCraft trailer. A previous owner put automotive tires on it. I would like to replace the automotive tires with trailer tires. Does anyone know what size tires came on these trailers originally? How about load rating/class etc? Any help would be much appreciated.

11-13-2006, 03:55 PM
I beleive the correct tire size is 215/70R14 Load Range C. I would use Goodyear Marathons, I have yet to have a blowout with them.

11-13-2006, 04:05 PM
Prefered tire is the "GoodYear Marathon" [ST = Special Trailer],
According to MC Parts Dept.
ST-215-75-R14 for 14" wheels and ST-225-75-R15 for 15" wheels.

11-13-2006, 04:18 PM
Thanks guys. It has 205/70R14 car tires on it now. I am not sure if I could fit anything taller w/o stiffer springs or adding lift blocks as suggested in other posts on this site. There has to be less than 2 inches from the top of the tire to the fender. I imagine the springs have sagged over the years. I blew out one of the car tires and it caused some serious fiberglass damage to the trailer. Luckily the boat was fine. I have a buddy who suggested the Goodyear tires to me as well, so I will make them my top choice. Hope your winter goes by quick!

11-13-2006, 04:24 PM
Don't let anyone talk you into Carlisle tires before you check National Safety Board complaints. Then decide for yourself.

11-13-2006, 04:29 PM
Yeah, a buddy of mine blew out 2 brand new Carlisle tires in the SAME trip from OH to TN a few years back. Hearing about that was enough to make me say "no thanks". This is my first time using this forum. I can't believe how fast you all are getting back to me. I really appreciate it.

Bruce Carr
11-13-2006, 04:35 PM
Before you buy the ST-215-75-R14 tires, make sure you have the width under the fender for them. My '91 MC trailer would only accomodate ST-205-75-R14 tires without rubbing the fender. YMMV

11-13-2006, 09:41 PM
I hate to be the one to bring up negative info on Goodyear Marathon tires, but I lost two due to blow-outs on my trip to Dale Hollow this summer. The tires were purchased last year by the previous owner, I think in October and were inflated to the proper 50 psi. They had less than 2000 miles on them when they shredded. Fortunately, I got home before the third tire shredded. It had less than 300 miles on it and was buldging badly. I had all three replaced with Carlisle trailer tires. Now, I read this thread and I'm wondering about that decision.:confused: