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  1. ksurfier

    20" Inch YOKOHAMA GEOLANDAR CV 4S | 275/60R20 - 116H - 660AA - 3PMSF

    Yes, this tire seems perfect for northern latitudes. I just had the second tire rotation @16k miles and the they are wearing evenly with 7/32 remaining. Should get 30k miles easily and 35k if I watch and rotate carefully, not bad… I’d like to see results of this tire paired with Atomic Wheels...
  2. ksurfier

    1,000 mile efficiency report on Nitto Terra Grappler G3

    Any update on efficiency? Which version do you have?
  3. ksurfier

    Anyone down to trade their 20" for 22" wheels?

    While the trade is unlikely, you could likely buy some Atomic Wheels 20” and then sell your 22s for nearly the same price. As a benefit, if you get the lightweight rims you should be able to get really good MPK/efficiency with the right tires. At least you don’t have the 21s. Also, you could...
  4. ksurfier

    20" Inch Goodyear Territory AT 275/60/20 Factory AT tires + saving $

    Taking into account the temperature, pressure, humidity, elevation, R1T (3% more efficient than R1S), your values are making sense to me now. Look forward to your longer term efficiency, likely to increase as temps warm up (but then decrease when it’s hot enough for AC). Unfortunately...
  5. ksurfier

    20" Inch Goodyear Territory AT 275/60/20 Factory AT tires + saving $

    We can use the 5.75 mile trip to get the upper bounds for your MPK, the trip was an average speed of 21 mph, relatively flat so we don’t need to factor in steep hills. Assuming minimal impact from higher elevations and only about 0.15 - 0.2 total adjustment is needed. That means your MPK <60...
  6. ksurfier

    20" Inch Goodyear Territory AT 275/60/20 Factory AT tires + saving $

    At extreme low speeds many of us also see these high efficiency MPKs…your 30 miles indicates 3.08 MPK at 43 MPH. It’s not clear how much of those 30 miles you used conserve…what’s clear is that your efficiency continues to be an extreme outlier. What is your long term MPK with the GYs? Based...
  7. ksurfier

    20" Inch Quad MPK Poll: 60 mph and 60°F

    Got it, at this point 33 of 34 results seem reasonable, for your retest, anything under 10 mph should be fine…
  8. ksurfier

    Switch to Michelin Defender LTX M/S2 from Pirelli Scorpion 275/55 R21

    Unfortunately no, there are people who have gone nearly 40k and then of course those that changed them out with less than 10k…majority here say they are too loud after ~15k plus or minus…
  9. ksurfier

    20" Inch LTX MS/2 or Goodyear Territory - Help me decide

    The Defenders have a mileage warranty, GYs do not…
  10. ksurfier

    20" Inch LTX MS/2 or Goodyear Territory - Help me decide

    Big question: Do you want need snow cert 3PMSF? If so then Goodyear… Subjective scores priorities would be in order: 1. Noise/Comfort - Defender by a point or two 2. Efficiency - Defender by a hair (tbd) 3. Off road ability (gravel/dirt, fire roads, light North Georgia trails) - Goodyear...
  11. ksurfier

    20" Inch Goodyear Territory AT 275/60/20 Factory AT tires + saving $

    - Are you comparing QM R1S to QM R1T? I believe the R1T is at least 3% more efficient than the R1S…then there is driving style (fast/heavy on the throttle vs slow). Could be a number of factors…unfortunately my concern with GYs is that they will wear quickly and not make it past 25k miles...
  12. ksurfier

    Are big wheels not just for toys? Any advantages for big tires / wheels?

    Test drove a Kia many years ago, it bounced around like a clown car…thinking that they must be better by now… Filling up the wheel well may have some aero benefits…but as far as performance goes, ideal tire is 18” (at least for F1), so likely just for locks and maybe some efficiency benefits:
  13. ksurfier

    20" Inch Quad MPK Poll: 60 mph and 60°F

    some explanations could be that the lower ranges were cold-soaked batteries that needed extra kWh to warm up. Surprisingly the type of road can make a considerable difference (concrete is harder than asphalt and results in about 0.3 increase in MPK compared to asphalt). Wind speed and air...
  14. ksurfier

    20" Inch Nitto Terra Grappler G3 tires available

    May as well inflate those tires to 48 psi cold, right?
  15. ksurfier

    20" Inch Poll for Dual/Tri-Motor Vehicle Efficiency at 60 MPH in 60°F

    This poll has limited participants, hopefully more can vote so we have better representation: However so far this implies following ranges: Standard Dual: 225 miles (real world tested at 240 miles at 70 mph) Large Dual: 310 miles (conflicting info on actual range) Max Dual: 336 miles (real world...
  16. ksurfier

    20" Inch Quad MPK Poll: 60 mph and 60°F

    At this point the poll results are a mean of 2.2 MPK with acceptable data range of 1.63 to 2.63. Only 1 outlier (2.9) observed (result of AW lightweight rim and Goodyear tires?) The mean of 2.2 MPK results in ~285 miles expected range. Daytripping, did you actually see a significant change in...
  17. ksurfier

    Deal Alert: 275/65R20 Cooper Discoverer AT3 XLT - $219 ea

    Pretty impressive if you can get 60k! What’s your MPK? If it’s anywhere close to 2 then that’s very impressive…
  18. ksurfier

    22" Inch 22" replacement tire feedback please - Bridgestone Dueler A/T ASCENT

    If you are ok with getting lower efficiency (and $600 per tire) then the following tire would be great: TOYO OPEN COUNTRY A/T III EV - 34” - LT285/55R22 (58#) 35” - LT305/55R22 (57#) Otherwise, prob. best to sell the 22s and buy a set of 20s from Atomic Wheels…
  19. ksurfier

    Issues with Michelin Defender LTX MS/2

    It’s not the overall tire width, it’s the tread width which is less than 8”…my guess is that the installer really has to know how to properly balance the tire since it will be more sensitive to weight imbalance. There could also be variance in the tire construction that could cause potential...





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