Is there any technical reason why any 120/70-17 tire with a "58V" or higher load/speed rating couldn't be used on an LT (like maybe a Shinko Raven 120/70ZR-17 58W)?
If you want to put a tire on the LT, there is no reason any 17" tire can't be put on......But, If a person values their life, they should consider that the LT is a heavy weight in the motorcycle world, and being a performance touring bike, it is in a world of its own when it comes to tires that are designed and rated for the unique demands put on them by the LT. A few dollars extra to insure you are riding on a tire that will give you the optimum in performance and safety, just has to be worth it. I personally don't understand the concept of fighting the facts, some tires are rated for use on the LT and some simply are not. If you do a search of the forum, you will find the tire subject has been beaten to death, of course there is always the LT rated tire that is preferred over another LT rated tire, but I think you would find that just about every LT rider won't deviate from tires that are rated for the bike by the manufacturer... :soapbox: :rant: :deadhorse :bike:Beemerick said:Is there any technical reason why any 120/70-17 tire with a "58V" or higher load/speed rating couldn't be used on an LT (like maybe a Shinko Raven 120/70ZR-17 58W)?
Dean,deanwoolsey said:You need a belted tread, reinforced sidewall for the LT. Unless the actual load rating is equal to or higher than the Metzeler, don't do it. Here are the 880 specs. Note that it is a load capacity "C" rated at 963 pounds.
CAPACITIES AND CONSTRUCTION
Load Capacity/Inflation Pressure: 963 lbs./50 PSI
Load Range: C
Bias or Radial Ply: Bias
Tread Plies/Material: 5 Polyamide
Sidewall Plies/Material: 3 Polyamide
DOT Approved for Road Use: Yes
Tube or Tubeless: Tubeless-Can be used with a tube
Here's the Shinko:
120/70ZR-17 W (168 mpn) 58 (520 lbs)
I can't guarantee it will kill you but there is a strong likely-hood you will experience a tire failure at speed if you try it.
First off "C" is a load range and not a load capacity. Second, I believe the data you've provided above is for the Metzeler ME880 160/70-17 rear tire, not the 120/70-17 front.
For the LT, BMW calls for a rear tire with load rating of (at least) 79 which equates to a load capacity of 963 lbs, and a front tire with a load rating of (at least) 58 which equates to a load capacity of 520 lbs.
I am not asking for opinions on brand X, Y, or Z. My question is: technially speaking, other than size (120/70-17) and load/speed rating (58V), is there any additional qualifying spec?
Flame shield up...
At ease, teufel hunden. Although "Danger" is my middle name, I do not wish to be unsafe; that's why I'm asking...gunny said:Go ahead if that's what you want to do.
Won't find one on my LT. I value the hide on my butt too much to be scrimping on a tire. Especially one made in China, that's just wrong.
Again, the question was not about opinions on "unknown" or "known-good" brands. The question was: Are there additional tire specifications other than SIZE (120/70-17), LOAD/SPEED RATING (58V) that an LT front tire must meet?Rocketsled said:I guess the question I'd have is: How much money are you saving? $60? $80? Is it really worth that, considering you're meddling with 50% of your traction budget?
There was a lot of that going on over in the Honda forums...going Darkside with Auto tires in back. Yeah, you could double or triple the mileage, but the savings wouldn't cover the insurance deductible and I just can't see how the differing profile could help ANYthing with handling.
Sure, I could see jumping to another, unknown brand if known-good wasn't available...but that's not really the case here.
On the front tire as long as the ratings are equal or better it's not a problem. There are a LOT of front tires available that meet the minimum rating for the LT. I've thought about using the softest compound available for the front & then soaking a rear tire to soften it's compound to match the front just to see what it would feel like on the switch backs in the mountains. My guess is that type of combination would be completely worn out in two days of riding. But it would be fun .Beemerick said:Is there any technical reason why any 120/70-17 tire with a "58V" or higher load/speed rating couldn't be used on an LT (like maybe a Shinko Raven 120/70ZR-17 58W)?
No doubt, and if ALL of the specifications are met, then it should be peachy...but if the criteria is saving money, then it's not like there's a lot to be saved, based on the consequences of failure.Beemerick said:Again, the question was not about opinions on "unknown" or "known-good" brands. The question was: Are there additional tire specifications other than SIZE (120/70-17), LOAD/SPEED RATING (58V) that an LT front tire must meet?
Also, installing a motorcycle tire that meets (or exceeds) ALL OEM specs is NOT REMOTELY SIMILAR to installing a car tire on a motorcycle.
Spending more money does not guarantee there won't be a failure as I have had tread bubbles on an ME880 front and I have seen(not mine) tread delam on a rear ME880.Rocketsled said:No doubt, and if ALL of the specifications are met, then it should be peachy...but if the criteria is saving money, then it's not like there's a lot to be saved, based on the consequences of failure.
I'm the first guy to admit there's frequently a LOT of improvements in tires, often for less money (specifically from buying tires for the Vettes), and honestly, I missed the part about it being for the front tire. And yet.