17.5" Tires?

[DieselPower]

Back when I worked for a GM truck dealer most of the tires I saw on the W4 and W5's (just rebadged Isuzu NPR's) had 17.5" tires on them. Like LRH said, they are very common on low cab forward trucks.

 

[Eagleview]

17.5" tubeless tyres/tires replaced the old tube type 15" tyres on low loaders/lowboy's . The biggest reason for the change was to create a bigger air gap between the brake drum and the rim . Red hot brake drums , 3/4" away from the tube was causing blowouts . Now there is a good air gap on the same axle/brake drum setup . Going tubeless also had obvious benefits .

 

[LRH]

Back when I worked for a GM truck dealer most of the tires I saw on the W4 and W5's (just rebadged Isuzu NPR's) had 17.5" tires on them. Like LRH said, they are very common on low cab forward trucks.[/QUOTE

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That must have been a few years ago; as now they jump from the 16" directly to the 19.5". I have seen a few older ones with the 17.5's, and see references for wheels occasionally. Must have scared some folks, so the US spec model Isuzu's (Japan built Diesels and US assembled 5.7/6.0 gasoline) no longer show them as standard, nor as an RPO. A local junkyard has an old wrecker chassis (GMC W4 or W5) with the 17.5,s. I have also noticed that UPS has used/specified them on some chassis. Nissan UD still spec's them for US.

 

[Builder]

I have never seen them but that does not they are not out there. To be honest I have never seen anything but standard 8, 12, 13, 14, 15, and a few 16" rims and tires on trailers.

Chris

Those are lightweight trailer tire & rim sizes.

Usually when a ".5" like a 14.5", 17.5" or 19.5" trailer tire size is designated, it means serious use and heavy duty.

http://www.econolinetrailers.com/Tilt-Trailers.asp

 

[Diamondpilot]

Those are lightweight trailer tire & rim sizes.

Usually when a ".5" like a 14.5", 17.5" or 19.5" trailer tire size is designated, it means serious use and heavy duty.

Econoline Trailers - Tilt Trailers - Utility Trailers - Equipment Trailers - Gooseneck Trailers - Flatbed Trailers - Industrial Trailers - Hydraulic Trailers - Dual Tandem Trailers - Trailer Parts - Trailer Sales and more.

Learn something new everyday. All I ever deal with is boats and utility/dump trailers with 3.5K, 6.0K, and 7.0K axles. Just curious, what is the GVWR of that trailer you have and is it singles or dually? I am guessing you use it to haul you Case BH and if its like my neighbors I think it weighs about 16,000#.



Chris

 

[wushaw]

My house/fifthwheel has Goodyear G114 215/75XR17.5 H, max load is 4805 @ 125psi. They seem to be good tires, they will dry rot before I will ever wear them out.