90
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
88/100
13 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated May 2026
Avon Spirit ST vs Pirelli Diablo Rosso III — Compared (May 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
VS
82
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
83/100
9 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Avon Spirit ST — better wet, treadwear and dry. Pick the Pirelli Diablo Rosso III if comfort and handling matter most to you.
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Category breakdown
5 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
Spirit ST leads by 4
Why this score
| Source | Spirit ST | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 94 | 90 |
Wet
Score (0–100)
Spirit ST leads by 21
Why this score
| Source | Spirit ST | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 98 | 77 |
Comfort
Score (0–100)
Diablo Rosso III leads by 3
Why this score
| Source | Spirit ST | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 85 | 88 |
Treadwear
Score (0–100)
Spirit ST leads by 10
Why this score
| Source | Spirit ST | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 85 | 75 |
Handling
Score (0–100)
Diablo Rosso III leads by 3
Why this score
| Source | Spirit ST | Diablo Rosso III |
|---|---|---|
| Tyre Reviews owners | 87 | 90 |
Scores at a glance
| Category | Avon Spirit ST | Pirelli Diablo Rosso III |
|---|---|---|
| Relative Score | 90 | 82 |
| Dry | 94 | 90 |
| Wet | 98 | 77 |
| Comfort | 85 | 88 |
| Treadwear | 85 | 75 |
| Handling | 87 | 90 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Neutral
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Recomputed
Headline score
90
/ 100
Tire A
82
/ 100
Tire B
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Avon Spirit ST is widely regarded as a high-performance sport-touring tire that offers exceptional grip and stability across diverse weather conditions. While most users praise its longevity and value, experiences are polarized, with some riders reporting significant issues regarding handling feedback and high-speed vibrations on specific heavy motorcycles.
Pros
- Excellent wet and dry weather grip
- High durability and resistance to squaring off
- Strong value proposition compared to premium competitors
- High stability under heavy loads and two-up riding
Cons
- Reports of vague steering feedback and reluctance to turn on certain bikes
- Inconsistent quality control leading to high-speed vibrations for some users
- Poor customer support resolution for warranty claims
- Extremely short tread life reported by a minority of users
Observations
- Users on heavy touring bikes like the BMW K1600GT reported significant high-speed vibration issues.
- Riders of mid-sized motorcycles like the Yamaha 700 noted improved stability and predictability compared to previous tires.
- Heavy-duty touring and two-up riding configurations consistently reported positive results regarding tire longevity and load stability.
The Pirelli Diablo Rosso III is widely regarded as a high-performance sport tire that excels in providing predictable grip, excellent feedback, and confidence-inspiring wet-weather handling. While users consistently praise its agility and performance on twisty roads, there is a notable divide regarding tread longevity, with some riders experiencing rapid wear compared to more specialized track-focused or touring alternatives.
Pros
- Exceptional dry grip and predictable handling at various lean angles
- Improved wet-weather performance compared to more aggressive track-oriented tires
- Fast warm-up times providing immediate confidence
- High level of rider feedback and stability under heavy braking
Cons
- Inconsistent tread life, with some users reporting premature rear tire wear
- Potential for rapid degradation under aggressive riding styles
- Isolated reports of structural issues such as delamination
Observations
- Sportbike riders (Ducati 959 Panigale, Yamaha R1) report high satisfaction with the tire's ability to handle aggressive cornering and track-day usage.
- Users transitioning from touring-oriented tires (e.g., Scorpion Trail) to the Rosso III note a significant increase in agility and cornering capability, though at the expense of touring longevity.
Specifications
Specs side by side
| Attribute | A · Avon Spirit ST | B · Pirelli Diablo Rosso III |
|---|---|---|
| Category | Summer Premium Touring tires | Summer Max Performance tires |
| Vehicle type | Motorcycle | Motorcycle |
Final verdict
Which one should you actually buy?
90
/ 100
Avon
82
/ 100
Pirelli
Winner: Avon Spirit ST — better wet, treadwear and dry. Pick the Pirelli Diablo Rosso III if comfort and handling matter most to you.
Pick tire A
Your priority is wet-weather safety
Avon Spirit ST scores 98 vs 77 on wet.
Pick tire A
You want the longest tread life
Avon Spirit ST scores 85 vs 75 on treadwear.
Pick tire A
You want the most grip on dry roads
Avon Spirit ST scores 94 vs 90 on dry.
Pick tire B
You want the most comfortable ride
Pirelli Diablo Rosso III scores 88 vs 85 on comfort.
Tire A · Avon Spirit ST
Tire B · Pirelli Diablo Rosso III
More comparisons
Also compared with
Avon Spirit ST also compared with
Pirelli Diablo Rosso III also compared with
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.