G'day Fellas, first post this forum.
Have any of you blokes run 285 75R 16s on 10" Rims?
I'm well aware of makers rim size specs for differing tyre sizes, just want to know if any of you blokes have done this and what was the result?
Was it a case of..as we Aussies say 'No worries mate
or was it
Don't do dat stuupid!!
I'm running Toyo OPAT AT 305 70R 16s on the 10" Rims at present as it is within Toyo spec for these tyres. No worries and I've been reasonably happy with the size and performance.
However; at my next tyre change, I'd like to come down a size in tread width without loosing diameter (33" looks better in the wheel arch than 31").
But don't want to go to the extra expense of getting 8" rims as well as tyres, and the 285 75R 16s are the same 33" Tyre due to width to wall height ratio differences.
I know it doesn't sound a lot but just the 20mm difference in tyre width x 4 wheels is 80mm (3.2") more tread on the terra firma adding to rolling resistance.
However if you take the difference between the stock 265s and you have 40mm x 4 tyres giving 160mm more rolling resistance. For you blokes, it's 6.3" of extra tread on the road above stock specs for gear changes, diff ratios ect...
I know the extra 2" in diameter will also be adding to the maths.
But with Diesel generally between US$4.30 to US$6.10 a Gal Downunder in Aussie and if you go far enough Outback it can be well in excess of US$7 a Gal. So any gain is worth at least thinking about.
Now back to my original question: Can any of you blokes see or have experienced any adverse effects put on a 285 75R 16 tyre on a 10" Rim.
I'm considering the Michelin LTX AT2:
LT285/ 75 R 16 Rating 126R (E) Dia 834mm(32.8 inch) Width 286mm(11.25 inch). Recommended Rim Width 7.5 -- 9.0".
What will that extra half inch a side (1" overall) above manufactures recommendation do to the tyre on a fully loaded truck towing a 3,300kg Trailer?
Aussie spec Brazilian built 2005 (US 2003) F-250 Superduty 4x4 7.3Ltr Powerstroke:
Donaldson (AIS) Intake with Zoodad, AIH deleted, DIY CCV & catch can, 26” x 3½” Cummins straight through muffler, MBRP Black Tip, Foil Delete, Old Man Emu (OME) HD rear spring set, Front leveler spring, OME Nitrocharger Dual Tower shocks front, OME Nitrocharger shocks rear, Tough Dog Steering Damper, ARB Air Lockers Front & Rear, V10 Tranny cooler in series with Stock Tranny cooler, Deep Tranny Pan, Extra Cooling rear diff cover, ARB HD Front Diff cover, ARB Bull Bar, Kymar Dual Spare Wheel carrier & Rear bumper, Edge Evo with Dash Pod & EGT pyro, Long Range Fuel Tank, OEM Style paint matched wheel arch flares, VMS in Dash GPS Street & Off Road Navigator, Toyo OPAT AT 305 70R 16” on 10” Rims.