LT Tires on GX460
#62
Unsprung weight refers to the parts of the vehicle suspension that moves relative to the body of the vehicle, i.e., the parts that are not supported by the springs which carry the weight of the vehicle. The tires, wheels and suspension components that move when the vehicle hits a bump are considered unsprung and should be as light as possible, otherwise the vehicle experiences a noticeable "bounce" which the passengers feel as we ride over the road.
The tires you have installed on your vehicle are heavier then the OEM tires, i.e., they increase the unsprung weight. Does this translate into a rougher ride?
Regards,
SaniDel
P.S. Alloy wheels have become standard on modern vehicles for this reason in addition to appearance as they are lighter than the steel wheels they replaced, which reduces the unsprung weight.
#64
For those who pull trailers, add roof-top carriers or load their GX with lots of cargo or passengers it's a good idea. For those who only haul themselves ... I'm not convinced, but those larger tires sure look sweet!
Regards,
SaniDel
#67
Moderator
Thread Starter
I understand your comparison of more efficient design versus weight, but isn't there also an issue of unsprung weight?
Unsprung weight refers to the parts of the vehicle suspension that moves relative to the body of the vehicle, i.e., the parts that are not supported by the springs which carry the weight of the vehicle. The tires, wheels and suspension components that move when the vehicle hits a bump are considered unsprung and should be as light as possible, otherwise the vehicle experiences a noticeable "bounce" which the passengers feel as we ride over the road.
The tires you have installed on your vehicle are heavier then the OEM tires, i.e., they increase the unsprung weight. Does this translate into a rougher ride?
Regards,
SaniDel
P.S. Alloy wheels have become standard on modern vehicles for this reason in addition to appearance as they are lighter than the steel wheels they replaced, which reduces the unsprung weight.
Unsprung weight refers to the parts of the vehicle suspension that moves relative to the body of the vehicle, i.e., the parts that are not supported by the springs which carry the weight of the vehicle. The tires, wheels and suspension components that move when the vehicle hits a bump are considered unsprung and should be as light as possible, otherwise the vehicle experiences a noticeable "bounce" which the passengers feel as we ride over the road.
The tires you have installed on your vehicle are heavier then the OEM tires, i.e., they increase the unsprung weight. Does this translate into a rougher ride?
Regards,
SaniDel
P.S. Alloy wheels have become standard on modern vehicles for this reason in addition to appearance as they are lighter than the steel wheels they replaced, which reduces the unsprung weight.
Koz
#68
Moderator
Thread Starter
Koz
#69
The OEM "P" rated HPs are rated at a max 51psi and the "E" rated LT MS2s are rated at a max 80psi. Again, the funny/great thing about these tires is they ride better then the OEM in every aspect. The only difference I have not determined is gas mileage and how it handles the snow. It will take several tanks to determine the mileage and a winter for the snow. From the reviews I read I would think they will handle the bad weather much better too.
Koz
Koz
See pic. P Metric LTX MS2 in OE tire size 44 PSI max. Odd that the LTXs are rated less than the Latitudes.
I grabbed a Blizzak from the basement and put it next to the LTX MS2, Blizzak has more sipes per block and the blocks are arranged in a more asymmetric manner... LTX has deeper tread and the number of sipes per block is a bit more random but look noticeably burlier. Unless it gets stupidly cold in CO, I would be surprised if the LTXs don't perform as well as the Blizzaks.
In the rain they are noticeably better than both OE tires. We're supposed to get a few inches of snow starting tonight. I'll report back as to how they do.
Just put Blizzaks on my wife's RX. Season is upon us.
Last edited by tazdevl; 10-24-12 at 11:51 AM.
#70
Moderator
Thread Starter
Totally agree on the tires. Huge step forward. I actually enjoy driving the GX more.
See pic. P Metric LTX MS2 in OE tire size 44 PSI max. Odd that the LTXs are rated less than the Latitudes.
I grabbed a Blizzak from the basement and put it next to the LTX MS2, Blizzak has more sipes per block and the blocks are arranged in a more asymmetric manner... LTX has deeper tread and the number of sipes per block is a bit more random but look noticeably burlier. Unless it gets stupidly cold in CO, I would be surprised if the LTXs don't perform as well as the Blizzaks.
In the rain they are noticeably better than both OE tires. We're supposed to get a few inches of snow starting tonight. I'll report back as to how they do.
Just put Blizzaks on my wife's RX. Season is upon us.
See pic. P Metric LTX MS2 in OE tire size 44 PSI max. Odd that the LTXs are rated less than the Latitudes.
I grabbed a Blizzak from the basement and put it next to the LTX MS2, Blizzak has more sipes per block and the blocks are arranged in a more asymmetric manner... LTX has deeper tread and the number of sipes per block is a bit more random but look noticeably burlier. Unless it gets stupidly cold in CO, I would be surprised if the LTXs don't perform as well as the Blizzaks.
In the rain they are noticeably better than both OE tires. We're supposed to get a few inches of snow starting tonight. I'll report back as to how they do.
Just put Blizzaks on my wife's RX. Season is upon us.
The Blizzak's are better in snow and ice but the MS2s are better everywhere else. I can tell you the GX and 4Runner with full time 4WD can do pretty good on bologna skins (not in CO).
Koz
Last edited by Koz; 10-24-12 at 02:07 PM.
#71
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My original Michelin Latitude Tour HPs already need replacing (only 32,000!!) . I asked about the LTX MS2 and the tire place said they were not the correct speed rating and the only tire they could put on was the same ones (Latitude Tour HP). Any suggestions?
#72
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Check my post and pics at https://www.clublexus.com/forums/sho...5&goto=newpost.
I currently run Pirelli ATR's on 265/70R17, E rated of course. There are few E rated 18" all terrain tires that I would recommend. These tireswill give you a 32.8" diameter as opposed to the factory 30.5 diameter".
I also trailer a lot and have had no issues.
Hope this helps.
I currently run Pirelli ATR's on 265/70R17, E rated of course. There are few E rated 18" all terrain tires that I would recommend. These tireswill give you a 32.8" diameter as opposed to the factory 30.5 diameter".
I also trailer a lot and have had no issues.
Hope this helps.
#73
Yeah. Tell them they're full of it and get the LTX MS2s somewhere that knows tires. Want to bet they only have the Latitudes in stock right now?
LTX MS2s are T rated tires with a top speed of 118mph. Depending on which way the wind is blowing, the GXs top speed is governed about 110ish MPH. Anyone driving this SUV that fast probably should not be driving and should wear a helmet when they walk.
http://www.tirerack.com/tires/TireSe...60&diameter=18
Might want to let them know the GX comes with Bridgestone Duellers as an OE tire too.
#74
Moderator
Thread Starter
Check my post and pics at https://www.clublexus.com/forums/sho...5&goto=newpost.
I currently run Pirelli ATR's on 265/70R17, E rated of course. There are few E rated 18" all terrain tires that I would recommend. These tireswill give you a 32.8" diameter as opposed to the factory 30.5 diameter".
I also trailer a lot and have had no issues.
Hope this helps.
I currently run Pirelli ATR's on 265/70R17, E rated of course. There are few E rated 18" all terrain tires that I would recommend. These tireswill give you a 32.8" diameter as opposed to the factory 30.5 diameter".
I also trailer a lot and have had no issues.
Hope this helps.
Koz
#75
Moderator
Thread Starter
BTW - "T" rated tires are good up to 118 mph and I'm sure the speed limiter is set at less then that. Also, going over that top speed rating (118 mph) would have to be maintained for a period of time (10 or 20 minutes) before any problems could accrue. I once (young and dumb) had my cruise control set at 1 mph below the speed limiter (approx 115 mph) for a half hour with "E" rated LTs (brand new tires with 80 psi, on a blown PreRunner). You will not have any speed related problems with “T’ speed rated tires on the GX (in good condition)! If you plan on speeds over 80 mph, bump up the pressure to near max (Texas 85 mph speed limit).
Koz