Tests – · none yet Owners 70 · 8 reviews
Toyo NanoEnergy R38 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Toyo NanoEnergy R38 vs Yokohama AVID Ascend — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 8 + 80 owner reviews. How we score
AVID Ascend leads, 72–70 Narrow edge
Add your size for an exact match
/R
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests – · none yet Owners 72 · 80 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
71
Dry
Level71Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) ≈ 70 (est.) ≈ 70 (est.) Reviews found online 72 74 NanoEnergy R38: 60% × 69.5 (est.) + 40% × 72.2 = 71
AVID Ascend: 60% × 70.1 (est.) + 40% × 73.5 = 71
No road tests of dry for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
No road tests of dry for AVID Ascend. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
-
72
Wet
AVID Ascend +274Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) ≈ 72 (est.) ≈ 73 (est.) Reviews found online 73 75 NanoEnergy R38: 60% × 71.7 (est.) + 40% × 73.2 = 72
AVID Ascend: 60% × 72.8 (est.) + 40% × 75.2 = 74
No road tests of wet for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
No road tests of wet for AVID Ascend. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
-
–
Snow
No comparison65Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) – ≈ 67 (est.) Reviews found online – 62 AVID Ascend: 60% × 67.3 (est.) + 40% × 62.2 = 65
No road tests of snow for AVID Ascend. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
-
69
Comfort
AVID Ascend +271Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) ≈ 69 (est.) ≈ 70 (est.) Reviews found online 69 73 NanoEnergy R38: 60% × 69.1 (est.) + 40% × 69.1 = 69
AVID Ascend: 60% × 69.8 (est.) + 40% × 73 = 71
No road tests of comfort for NanoEnergy R38 or AVID Ascend. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
-
–
Noise
No comparison70Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) – ≈ 67 (est.) Reviews found online – 74 AVID Ascend: 60% × 67.3 (est.) + 40% × 73.9 = 70
No road tests of noise for AVID Ascend. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
-
65
Treadwear
AVID Ascend +469Why this score
Source NanoEnergy R38 AVID Ascend Professional tests (TWG score) ≈ 65 (est.) ≈ 67 (est.) Reviews found online 65 71 NanoEnergy R38: 60% × 65.3 (est.) + 40% × 64.6 = 65
AVID Ascend: 60% × 67.3 (est.) + 40% × 71 = 69
No road tests of treadwear for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
No road tests of treadwear for AVID Ascend. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
-
71
Handling (owners)
AVID Ascend +374Why this score
Source NanoEnergy R38 AVID Ascend Reviews found online 71 74
Scores at a glance
| Category | Toyo NanoEnergy R38 | Yokohama AVID Ascend |
|---|---|---|
| Relative Score | 70 | 72 |
| Dry | 71 | 71 |
| Wet | 72 | 74 |
| Snow | – | 65 |
| Comfort | 69 | 71 |
| Noise | – | 70 |
| Treadwear | 65 | 69 |
| Handling (owners) | 71 | 74 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
70
/ 100
NanoEnergy R38
72
/ 100
AVID Ascend
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A NanoEnergy R38
Pros
- Reliable wet and dry grip with predictable handling limits
- Good value for money compared to premium brand alternatives
- Solid longevity and mileage, with respectable tread wear reported
Cons
- Slightly increased road noise reported by some users
- Limited size or availability challenges noted by consumers wanting replacements
Tire B AVID Ascend
Pros
- Exceptionally low road noise and quiet ride
- High level of ride comfort and shock absorption
- Strong wet and dry traction, inspiring confidence in heavy rain
Cons
- Isolated reports of premature tread wear or not meeting expected mileage
- Slightly spongy initial feel requiring a brief break-in period
- Occasional minor wheel slip during hard acceleration in wet or dry conditions
Specs side by side
| Attribute | A · Toyo NanoEnergy R38 | B · Yokohama AVID Ascend |
|---|---|---|
| Category | Summer | Premium Touring All Season tire |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Tread depth | — | 12/32″ |
| UTQG | — | 740 A A |
| Treadwear warranty | — | 75,000 mi |
| Sidewall | — | Blackwall |
| Max pressure | — | 51 psi |
Which one should you actually buy?
70
/ 100
Toyo NanoEnergy R38
72
/ 100
Yokohama AVID Ascend
Narrow edge: Yokohama AVID Ascend — better treadwear. It leads or ties in every category we score. Toyo NanoEnergy R38 rests on little evidence so far (0 tests, 8 reviews), so read this result as provisional.
Pick tire B
You want the longest tread life
Yokohama AVID Ascend scores 69 vs 65 on treadwear.
Tire A · Toyo NanoEnergy R38
Tire B · Yokohama AVID Ascend
TireWheelGuide may earn a commission from purchases made through these links.
NanoEnergy R38 or AVID Ascend?
Which is better in the wet, NanoEnergy R38 or AVID Ascend?
Neither, by our numbers: 72 vs 74 on the wet score, within 3 points.
Which grips better on dry roads, NanoEnergy R38 or AVID Ascend?
Neither, by our numbers: 71 vs 71 on the dry score, within 3 points.
Which is more comfortable, NanoEnergy R38 or AVID Ascend?
Neither, by our numbers: 69 vs 71 on the comfort score, within 3 points.
Which lasts longer, NanoEnergy R38 or AVID Ascend?
Yokohama AVID Ascend, 69 vs 65 on our treadwear score.
How do we compare tires?
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