315's vs. 295's

[pint]

I need new tires soon and am trying to decide between 315's and 295's. I've been running 295/75R16 Nitto TG's for 50k with good results. I plan to buy the same tire, just not sure if I want to go up a size? I really don't "need" 315's, but then I really don't "need" a Land Cruiser either! No hardcore rock crawling, just expedition type 4 wheeling. Other than the hit I will take in gas and acceleration, are there any other disadvantages to 315's? Any mods required to fit? I am running an OME medium lift with 865's, T-bars and Slee diff drop kit. Will probably do lockers and 4.88's later this year.

 

[Trunk Monkey]

The only issue I really see with 295s is that they're not as common a size as 285 or 315. Most places I've asked about them have to order them. Could be an issue if you have a non-repairable flat someone, no spare, etc.

 

[d0ubledown]

is there any suspension components near the sidewalls of your current setup? the 315's are wider of course...something to consider. some 315's are wider than others...

 

[Nickslexi]

Just my 2 cents here, but for expedition use, I'm not sure that you need 315's or lockers. I think your rig would be better suited to 285's... eaiser on the drivetrain and less money to put into it for gears, ockers etc. I say 285 and be happy with it....

 

[spressomon]

pint: As mentioned above: Go with the smallest tire size that gets the job done. I really wanted to stay with 285R75 16's but kept dragging both bumpers where I travel. I would not have gone to 315R75 16 if I had not needed them (for the record I am 100% pleased with my choice based upon where I drive this rig off-road). They're heavier, they use more gas (unless you convert to 4.88's), require front wheel spacers, require body lift to keep from rubbing front fender and rear inner fender walls...you get the picture I think.

If on the other hand you just have to have the look of 315's...check out the new size Toyo recently introduced in their OC MT: 285R75 18!

 

[pint]

I'll probably just stick with the 295's since I have a 295 Nitto unused spare. I realize 285's may make the most sense, I just think the 315's look killer! Very stupid I know, but I do stupid things regularly!

 

[tntoyota]

285R75 16's 315R75 16

285R75 18!

I think it would be easier to comprehend in std terms.

285/75x16
285 / 25 = 11.4
11.4 x 75% = 8.55
8.55 x 2 = 17.1
17.1 + 16 = 33.1
33/11.50x16's



315R75 16
315 / 25 = 12.6
12.6 x 75% = 9.45
9.45 x 2 = 18.9
18.9 + 16 = 34.9
35/12.50x16's



285R75 18
285 / 25 =11.4
11.4 x 75% = 8.55
8.55 x 2 = 17.1
17.1 + 18 = 35.1
35/11.50x18's



33's to 35's.... i hope you got some torque! ...slurp slurp slurp, chug chug chug

If that helps

 

[ginericLC]

And just so those of you who aren't aware there are huge variances in what a tire manufacturer calls a tire by size. Most of the major manufacturers come up a little short on height.

I'm running 315s right now and my next set will most likely be 285s. I'd like to get some power back, That extra 3/4-1" in height probably isn't going to get you any further down the trail. I also want to lose my front spacers.

 

[Boston Mangler]

I think it would be easier to comprehend in std terms.

I agree, Is there any easy to use chart of all of the conversion sizes anywhere?

Thanks

 

[ginericLC]

BFGoodrich Tires | All-Terrain T/A® KO | Tire Sizes & Specs

http://marktg.toyotires.com/file/18136.pdf

Goodyear Tires | Find The Right Tire | Display | Wrangler MT/R

Nitto Tire - High Performance Tires for Car and Truck Enthusiasts

TrXus MT / STS :: Interco Tire

Like I said earlier, metric sizes vary greatly from one tire manufacturer to another.
Almost all of them provide charts as to what each size is.

 

[ginericLC]

Metric Tire Conversion Chart

Arghhh! My posts aren't go through. I posted charts for BFG, Goodyear, Nitto, Toyo, and Interco. Each tire company posts a size chart for their tires. Most of them have weight too.

OK I guess it went through, above is a generic chart.