Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 0 road tests and 567 + 54 owner reviews. How we score
Extensa HP II leads, 67–63 Narrow edge
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Tests – · 1 test Owners 59 · 567 reviews
Best test result: #3 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))
“G-max rs I put 7k miles on these tires and this is the front how many miles would you say I have before problems occur I plan on replacing in a few weeks Read more”
Tests – · none yet Owners 67 · 54 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) | ≈ 68 (est.) | ≈ 69 (est.) |
| Reviews found online | 69 | 70 |
G-MAX RS: 60% × 68.3 (est.) + 40% × 68.8 = 68
Extensa HP II: 60% × 68.6 (est.) + 40% × 69.5 = 69
No road tests of dry for G-MAX RS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for Extensa HP II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 68 (est.) |
| Reviews found online | 71 | 66 |
G-MAX RS: 60% × 71.1 (est.) + 40% × 71.4 = 71
Extensa HP II: 60% × 68.4 (est.) + 40% × 66.4 = 68
No road tests of wet for G-MAX RS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Extensa HP II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) | ≈ 51 (est.) | ≈ 65 (est.) |
| Reviews found online | 10 | 52 |
G-MAX RS: 60% × 51.2 (est.) + 40% × 10 = 35
Extensa HP II: 60% × 64.7 (est.) + 40% × 52.3 = 60
No road tests of snow for G-MAX RS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for Extensa HP II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) | ≈ 67 (est.) | ≈ 68 (est.) |
| Reviews found online | 62 | 64 |
G-MAX RS: 40% × 67.2 (est.) + 60% × 61.5 = 64
Extensa HP II: 40% × 67.8 (est.) + 60% × 64.4 = 66
No road tests of comfort for G-MAX RS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Extensa HP II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 66 (est.) |
| Reviews found online | 54 | 68 |
G-MAX RS: 60% × 66.5 (est.) + 40% × 54.2 = 62
Extensa HP II: 60% × 66.5 (est.) + 40% × 68.2 = 67
No road tests of noise for G-MAX RS or Extensa HP II. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 73 | ≈ 69 (est.) |
| Reviews found online | 65 | 74 |
G-MAX RS: 60% × 73.4 + 40% × 64.7 = 70
Extensa HP II: 60% × 69.2 (est.) + 40% × 73.9 = 71
No road tests of treadwear for Extensa HP II. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | G-MAX RS | Extensa HP II |
|---|---|---|
| Reviews found online | 63 | – |
| Category | General G-MAX RS | Toyo Extensa HP II |
|---|---|---|
| Relative Score | 63 | 67 |
| Dry | 68 | 69 |
| Wet | 71 | 68 |
| Snow | 35 | 60 |
| Comfort | 64 | 66 |
| Noise | 62 | 67 |
| Treadwear | 70 | 71 |
| Handling (owners) | 63 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
G-MAX RS
Extensa HP II
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community sentiment toward the General G-MAX RS is broadly positive, with users frequently praising its exceptional value and strong dry and wet traction as a budget-friendly ultra-high-performance summer tire. While often favorably compared against premium alternatives like the Michelin Pilot Sport 4S or Firestone Indy 500, some owners note compromises including elevated road noise and occasional handling inconsistencies on specific sports car platforms.
“G-max rs I put 7k miles on these tires and this is the front how many miles would you say I have before problems occur I plan on replacing in a few weeks Read more”
“Darn, no 255/45R18, so I won't get to try these on the E38 for my next set of summers (it'll probably be the Kumho Ecsta Sport or Bridgestone Potenza Sport instead, but Tire Rack no longer has the Bridgestones in 255/45 even though they're still listed on the Bridgestone site). It seems like tire availability in that size is dropping way off. Conti dropped it in the ECS02 and discontinued the General G-Max RS in that size, now it's gone in the Indy 500 V2. So to run either of those tires I'd have to buy different front wheels and move to square 275s instead of the 255/275 stagger I'm running now. PS4S comes in a 255/45, but I'd have to move up to 285/40 in the rear (from 275/40) and they're rather expensive.”
“I'm going to get the Firestones or General G-MAX RS tires when the previous owners Michelin all-season tires wear out. I want a summer performance tire. Leaning towards the Firestone since they have better dry performance than the Generals. The Generals do better in the wet according to the performance test they both were in.”
Based on 53 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · General G-MAX RS | B · Toyo Extensa HP II |
|---|---|---|
| Category | Summer tire | High Performance All-Season tire |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 48 | 62 |
| Rim diameters | 16″ – 20″ | 15″ – 22″ |
| Tread depth | 10/32″ | 9 - 10/32″ |
| UTQG | 360 - 700 A - AA A | 500 A A |
| Treadwear warranty | — | 45,000 mi |
| Sidewall | Black Side Wall | Black Side Wall |
| Max pressure | 50 - 51 psi | 50 - 51 psi |
| Sizes in common | 31 | 31 |
General G-MAX RS
Toyo Extensa HP II
Narrow edge: Toyo Extensa HP II — better snow and noise. Pick the General G-MAX RS if wet matters most to you.
Toyo Extensa HP II scores 60 vs 35 on snow.
Toyo Extensa HP II scores 67 vs 62 on noise.
General G-MAX RS scores 71 vs 68 on wet.
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General G-MAX RS, 71 vs 68 on our wet score.
Neither, by our numbers: 68 vs 69 on the dry score, within 3 points.
Toyo Extensa HP II, 60 vs 35 on our snow score.
Toyo Extensa HP II, 67 vs 62 on our noise score.
Neither, by our numbers: 64 vs 66 on the comfort score, within 3 points.
Neither, by our numbers: 70 vs 71 on the treadwear score, within 3 points.
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology
