Yokohama Y742S Tire Review (1 Viewer)

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Yokohama Y742S Tire Review (photos work now!)

I posted this over at Expo Portal, but thought some of the 40/45/55/60 guys over here might be interested:


This is not much of a "review" yet, just initial impressions after about 400 miles. I'll add info as I get more miles on the tires...

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I do land surveying work 5 days a week and sell land out in the boonies on weekends. The surveying truck gets 500+ highway miles for every 50 off-pavement miles. The land-sales FJ80 probably runs about 200 highway miles for every 100 off-pavement miles, and does it in a lot rougher country. All of that is to give some background and give you guys some idea of how these tires will be used.

These 742's replaced a set of Yokohama Geolanders in 285/75R16, which were really too large for this truck, but wore extremely well and lived through almost 50,000 miles without a single flat. The only tires we've had on these surveying trucks that have done that well are Toyo M-55's that a coworker has put about 40,000mi on. I'm with Redline in not liking the shallow center treads on the M-55's though. My buddy's center tread looks like a solid zigzag now, rather than two rows of individual lugs. When I saw a photo of these 742's on the net, I was thinking: "M-55ish aggressive AT tread, no shallow center lugs, Yokohama quality, almost $100 per tire lower price than M-55's, and it sucks that the largest size is 235/85R16."

I've been thinking about replacing the 255/85R16 Toyo M/T's on my FJ80 with a set of these Yokohamas, so when the boss decided to "overhaul" the surveying truck instead of buying a new one, I figured I could use that truck as guinea pig... with the boss' money.

My initial impressions/observations: The tires ride nice on the highway, but have a noticeable howl that seems to start as a growl at about 30 mph and rise in pitch (but not volume) until it becomes almost un-noticed at 70+ mph. Similar sound to the M-55's on my coworker's truck.

Sucks that 235/85R16 are the largest size. Did I say that already? I'd LOVE to have a set of these tires in 255/85R16 for my Cruiser, but it took Discount Tire a week to round up a set of 742's, so I doubt there's any plans on the horizon for Yokohama to market these and start making more sizes. I really like the tread design, though. Seems a good no b.s. aggressive AT style that would be hard to beat for the actual use that most of us put tires to. I guess mud-terrains sell better, though.

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Sucks that 235/85R16 is the largest size though.

FJ80 shown below for size comparison between the 255 M/T's and these 235's.

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Still like these tires? How do they feel on the highway? Stable?

I want to go to 16" rims on my 40, use the rims you have on that 80. Do you like those too?

Was looking at this tire as a good aggressive tire for all types of wheeling. Will have many miles of pavement and gravel roads, general driving, and I want a good stable tire.

How do they do in loose sand, dirt, mud?
 
They're stable on the highway, but they seem louder (or at least more annoying) than my Toyo M/T's on really smooth pavement. On 90% of the pavement around here, they're not annoying at all, but when you hit that smooth stuff that looks like concrete, they really howl. Weird. I guess part of it could be that there's less engine & wind noise in the Chevy than there is in my 80, so I just notice it more.

I haven't really run them much off the highway, but they seem to do fine on rough, rocky, gravel roads and seem to grip well on the little bit of light mud and wet pavement I've driven them on.

They seem like a no-bull hard use tire, but I don't think I'll be getting another set, simply because of the noise and the fact that they are so hard to get. Next set of treads on my 80, I'm probably going to drop down a size to 235/85R16 (32-inch) and either go with another set of Toyo M/T's or maybe Toyo M-55's.

70-Series wheels: I have nothing to complain about with these wheels. Built like anvils, and look "right" on my truck. Just be aware that these are 16x6 wheels made for 7.5r16 or 235's, so even going up in width to a 255/85R16 is stretching it a bit. No funky wear with my 255's, but 265's would definitely be too wide for this wheel.
 
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Update:

I just got home from a 700 mile round-trip... These tires are noisy as hell. I would definitely not recommend them unless you're looking for a vintage look on an old Cruiser or Rover, or maybe if they're going on a diesel that might drown out the whine.

... just annoying.

Toyo M-55, here I come!
 
Not exactly on those tires, but I use y735Bs on my 60 with split ring 16". It's a similar tire though. Sounds less whiny than your tire by the description you gave and the 1000miles I've used mine. They come in 7.50 R16 too.
 

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