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170 Montauk trailer tire/wheels
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ContinuousWave Whaler Moderated Discussion Areas
ContinuousWave: Post-Classic Whalers
170 Montauk trailer tire/wheels
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| Author | Topic: 170 Montauk trailer tire/wheels |
| WT |
posted 08-02-2010 06:42 PM ET (US)  
Has anyone replaced their original sissy-sized 175/80/13 trailer tire/wheels for a larger size tire/wheel? And did you find a new fender that would accommodate the new setup or did you use the old fenders? Thanks, Warren |
| SC Joe |
posted 08-03-2010 09:29 AM ET (US)
I measured for larger, more accessible to purchase sized tires when mine needed replacing. It appeared that I definitely would need new fenders...and that seemed like more re-engineeri.g than I cared to do for a simple galvanized trailer. I just bought higher quality radial tires. |
| Chuck Tribolet |
posted 08-03-2010 10:36 PM ET (US)
What's the weight rating on the original tires? What's the weight of your rig? It's not about have good-looking Macho Honker Super Skidmores, Chuck |
| SC Joe |
posted 08-03-2010 11:36 PM ET (US)
Now that I think about it, the tires that came on my trailer were ST185/80 D13, load range "C", not 175's. I chnaged them to ST185/80 R13, load range "C". ST175/80 D13's do not have the correct weight rating for the 170. Are you sure you have the correct tire size? |
| WT |
posted 08-03-2010 11:59 PM ET (US)
I have Carlisle Radial Trail ST175X80X13, my spare tire is also the same tire. Maximun load capacity of the tire is 1,360 pounds. http://www.carlisletire.com/products/trailer/radial_trail/index.html Goodyear Marathon Radials are also rated at 1360 pounds. http://www.goodyear.com/rv/products/marathon.html My 170 Montauk tipped the scales at 2800 pounds. Looks like my tires are stressed. Warren |
| WT |
posted 08-04-2010 12:20 AM ET (US)
Actually my 170 Montauk can easily weigh 3000 pounds when I trailer 250 miles round trip from Sacramento to Bodega Bay. http://continuouswave.com/ubb/Forum8/HTML/003773.html I estimate that I tow my rig about 2000-3000 miles per year up semi-steep grades and sometimes gravel roads. Warren |
| Jefecinco |
posted 08-04-2010 09:29 AM ET (US)
Trailer tire diameter can be important for those who tow heavier loads for longer distances. Thirteen inch tires make more revolutions per mile than 14s or, even better, 15s. Clearly the wheel bearings are stressed to differing levels due to tire size. However, increasing tire size can lead to unintended consequences such as increased ride height and changes in boat launching and retrieving characteristics. As mentioned earlier fenders must usually be replaced or relocated and it's not always easy to change fender mounting locations. Perhaps it is worth increasing tire size to reduce tire and hub operating temperatures and wear when towing long distances or to increase ride height to solve other problems. Because for most of us trailer tire wear is a non-factor because our tires should be replaced for age reasons long before tread wear is an issue the cost will almost never be paid back, although avoiding a hub failure while traveling is worth a considerable amount. Perhaps buying a spare hub with bearings installed to carry along would be the better solution to hub heating issues. Certainly the cost and effort would be far less than would be that of increasing tire size. Butch |
| SC Joe |
posted 08-04-2010 11:13 AM ET (US)
At some point someone changed those tires out. Karavan and whoever the trailer manufacturer was before them put the larger 185's on it. Also, personally I would steer clear of Goodyear marathon and Carlisle tires. I have read too many horror stories of both brands blowing, even when new. My current trailer has 4 carlisle tires and I plan to replace all four of them soon. |
| SC Joe |
posted 08-04-2010 11:22 AM ET (US)
Oddly enough, Karrier brand Load Star tired have a good reputation..but they came on my trailer and wore quickly in odd patterns, as well as had cracking sidewalls on one tire. It may have just been my tires, I don't know. I do know these are readily available on eBay in a ST185/80 D13 load range "D". This would have the necessary load rating you need at 1725 per tire. |
| WT |
posted 08-04-2010 12:42 PM ET (US)
Here are a few pictures. http://img.photobucket.com/albums/v665/warrent/ Montauk%20170%20trailer%20tires/DSC_3769.jpg http://img.photobucket.com/albums/v665/warrent/ Montauk%20170%20trailer%20tires/DSC_3761.jpg http://smg.photobucket.com/albums/v665/warrent/ Montauk%20170%20trailer%20tires/ I'm not sure if I can squeeze the 185's under the fenders. Warren |
| SC Joe |
posted 08-04-2010 01:25 PM ET (US)
Those tires do look very close to the fenders. Have the springs been change out? |
| Barney |
posted 08-06-2010 09:54 PM ET (US)
Mine are 185's like Joe's. I thought your trailer was the same as mine, Jim |
| WT |
posted 08-06-2010 10:33 PM ET (US)
My Boston Whaler dealer says the trailers for 170 Montauks come with 185/80/13 now. My trailer/boat was bought in early 2004. I think I will try to squeeze in 185/80/13 when I change tires. The 10 mm difference is only .4 inches or .2 inches on each side of the rim, so I think 185's will fit on my trailer. I called Karavan Trailers and they said my trailer is rated for 2,791 pounds of both trailer and boat. It looks like I sometimes exceed that weight. Anyways, I think the message is for the guys on this site to check the load capacities of their trailers and tires. I had always guessed I had a wimpy trailer. Warren |
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