Got Ricksons? Slow down!!!

[CCahill]

I,m on the hunt for some 19. 5's for my truck, and I've noticed most of the tires available for these rims, are speed rated to 75 MPH. Seems low, considering how some of us drive.
Any thoughts on this?

Colin

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2001 Quad,4x4,AT,4. 10LS,LB,Loaded enough,stock,mostly... . 65 Chevelle sedan, Hella nice driver, 53 Nash Rambler Convt,1 of 653 built,[not a Metro], GM drivetrain, injection, and auto/od
Specialized FSR PRO Stumpjumper,Cannondale F2000, Loaded
MTD Lawn tractor with flames
12' fishin' boat, loaded. .

 

[DOWG]

I just spoke with the good folks at Rickson and they said the speed rating must be considered in tandem with the maximum load rating for the tire. I have over 30,000 miles on my 19. 5 Bridgestones and I drive 80 mph occasionally with no problem.

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1998 Driftwood Extended Cab,Short Box,12 Valve,4X4,Auto,Dunrite TC,3. 54,Banks Plate,AFC Spring Kit,Isspro EGT,Rickson 19. 5's,Abbott EPRA, Rancho Shocks,Heim Trackbar,Mag-Hytec transmission Pan & Pumpkin Cover,Amzoil Synthetic's,Ranchhand Bull Nose Front Bumper, Headache Rack,Tool Chest,Side Steps,Rear Bumper and 100% Stock Airconditioning.

 

[Jeff Clark]

The Michelin's on my 19. 5 Alcoa's are rated for 65mph. I drive 70-75 consistently with the occasional 100mph jaunt. Haven't had any problem but I imagine the speed rating is for the truck the tires are intended for and not something as light as our trucks.

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98. 5 3500 QC 4x4, Driftwood/Mist Grey, 5 spd, 3. 54, 19. 5 Alcoa's, Ranchhand bumpers, DeeZee toolbox, "Physcotty Air", TST PowerMax2, VA, 275's, Autometer Gauges, Centerforce clutch, Upgraded fuel lines (JRE and Aeroquip), MagHytec Diff Cover, PacBrake, Cowl Induction Hood

"If it ain't broke, it ain't a Dodge"

 

[DMC]

Don't be to concerned about the speed unless your running on questionable tires. And exceeding the load range.
I have had alcoa/Michelin on class 8 auto-transporter hold up very well up to 120 MPH.

Steer Axle 13000. Drive Axle 34000. Trailer Axle 33000.

The main thing to look out for is cracks in the tire near the rim. Also if you plan on driving fast, inrease tire pressure. I used to run 110 Psi in a 100 Psi rated tire on the steer, 105 on the drive axle, cold, as an example. I would recommend 5 Psi over max on passenger type tires. They will actually run cooler. I wouldn't run fast on any tire that I had any doubt about. If you ever run a tire low on air very far, you've probably ruined it and your riding on borrowed time and it probably won't be convenient when it finally blows.
Many times when I was running out west people that didn't watch their tires religously would be in the break down lane very often. The major cause of tire failer is underinflation X Speed/Load = Heat

Happy Trails

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D McGrady 1996 Club Cab 6BTA 5. 9 12 Valve All Stock Except K&N and Wrangler A/T 305/70/16 136 K and going strong.

 

[rich m]

Originally posted by Jeff Clark:
The Michelin's on my 19. 5 Alcoa's are rated for 65mph. I drive 70-75 consistently with the occasional 100mph jaunt. Haven't had any problem but I imagine the speed rating is for the truck the tires are intended for and not something as light as our trucks.

ditto the Goodyear Unisteels... I've never even seen a speed rating, but they still look new after 40K+ of my driving... same habits as Jeff, apparently #ad




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mildly BOMBed 98. 4 1B7KF23D4WJxxxxxx-- BD's #5 plate and 210HP injectors--BD Brake and the associated transmission bomb goodies (except for TC,currently), 4" open exhaust (short),Psychotty, camper shell, Warn front receiver, G159Unisteels on Rickson 19. 5's. . CD player is bone stock, so are the seats. PrimeLoc, also remote spin-on filter for the auto trans... Pyro,Boost and Trans temp from Isspro,
Westin nerf rails(black),MagHytec Cover on the Dana 70. (tire hangs a little further aft for clearance)
bent welding rod to hang celphone on dashboard...
240HP on Dynojet from 75-105mph drumspeed.
calculated 721 lbft @ 1800rpm

 

[fest3er]

Originally posted by CCahill:
I,m on the hunt for some 19. 5's for my truck, and I've noticed most of the tires available for these rims, are speed rated to 75 MPH. Seems low, considering how some of us drive.

As always, use caution, keep your tires properly inflated, and inspect them often.

I've currently got 40K miles on my TY303s. A lot of that mileage has been highway, running 75 or better for hours at a time. I haven't yet had any signs of tire problems.

Fest3er