You're doing research on these tires, but don't list any of the tires' UTQG, speed, or load ratings? What are your data points...peoples' reviews and/or opinions? Kind of expensive tires to go on opinion.
- General G-Max: UTQG 500AA A; "W" speed rating (168mph), load rating 94
- Vredestein Hypertrac: UTQG 500AA A; "Y" speed rating (186mph), load rating 97
- Sumitomo HTR A/S: UTQG 540 A A; "W" speed rating (168mph), load rating 94
Ah ..... Mmmmm ...... I guess I have to comment.
First, the UTQG treadwear rating is based on a test against a control tire - the SRTT (Standard Reference Test Tire) - which is the same for ALL tests.
HOWEVER the rating can be understated, but not overstated, so some tire manufacturers will be conservative and slightly understate it, while others push to state the largest value they can. Additionally, the test is highly variable. I've estimated the variability as up to 120 points. (
Barry's Tire Tech: Tire Wear - Normal)
In my opinion 500 and 540 are essentially the same.
The same applies to speed ratings - some tire manufacturers prefer to have the lowest speed rating that meets the specs as stated by vehicle manufacturers. Others like to push the envelope and state as high as they can, thinking s some folks judge quality based on speed ratings.
In my opinion, the difference between a W and a Y speed rating might not be a difference at all.
Load Rating: In this case this is the difference between a Standard Load (SL) and an Extra Load (XL), not a difference in quality.
In my opinion, some tire manufacturers will unnecessarily use an XL when the market calls for a SL, thinking that there are folks who would judge an XL as a better quality tire. I obviously don't share that opinion.