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Michelin XPS Rib vs XPS Traction [message #309752] Tue, 01 November 2016 10:54 Go to previous message
TR 1 is currently offline  TR 1   United States
Messages: 348
Registered: August 2015
Location: DFW
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Senior Member
So I'm considering replacing my existing XPS Rib tires, as they are now a little over 10 years old. I'm very happy with the XPS Ribs in all areas except for traction off pavement. I'm also concerned with the XPS Rib if I ever encounter snow, as it is a summer tire.

I definitely want to stay with a steel sidewall tire, but the only tire that I can find that fits what I want is the XPS Traction... Basically, an all terrain version of the Rib. Unfortunately, it looks like Michelin is phasing this tire out, and the only size they have available that is close to ours is the 215-85-16. Weight capacity of the 215-85 XPS Traction is identical to the 225-75 XPS Rib at 2680. Looking at the specs on tirerack, the Section Width is also nearly identical to the 225-75-16 XPS Rib at 8.6" vs 8.7", but the diameter is a little larger at 30.7 vs 29.4.

I ran it through a gearing calculator, and it looks like this works out to a 3mph difference at 2500 rpm in 3rd, with the 3.42 final drive I have in my coach, which I think would be fine for my use.

However, does anyone know if there is clearance in the wheel wells to fit the increased diameter? Even better, is someone out there running this size tire? Or could anyone recommend an all steel tire that has a bit more traction off pavement than the XPS Rib?

Here are a couple links to the tires mentioned above...

http://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=XPS+Traction
http://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=XPS+Rib&partnum=275R6XPSR

Mark S. '73 Painted Desert, Manny 1 Ton Front End, Howell Injection, Leigh Harrison 4bag and Rear Brakes, Fort Worth, TX

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