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 Supercorsa — 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
66
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
69/100
12 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Avon Spirit ST — better wet, treadwear and dry. It leads or ties in every category we score.
Read full
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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 8
Why this score
| Source | Spirit ST | Diablo Supercorsa |
|---|---|---|
| Tyre Reviews owners | 94 | 86 |
Wet
Score (0–100)
Spirit ST leads by 53
Why this score
| Source | Spirit ST | Diablo Supercorsa |
|---|---|---|
| Tyre Reviews owners | 98 | 45 |
Comfort
Score (0–100)
Spirit ST leads by 7
Why this score
| Source | Spirit ST | Diablo Supercorsa |
|---|---|---|
| Tyre Reviews owners | 85 | 78 |
Treadwear
Score (0–100)
Spirit ST leads by 26
Why this score
| Source | Spirit ST | Diablo Supercorsa |
|---|---|---|
| Tyre Reviews owners | 85 | 59 |
Handling
Score (0–100)
Spirit ST leads by 6
Why this score
| Source | Spirit ST | Diablo Supercorsa |
|---|---|---|
| Tyre Reviews owners | 87 | 81 |
Scores at a glance
| Category | Avon Spirit ST | Pirelli Diablo Supercorsa |
|---|---|---|
| Relative Score | 90 | 66 |
| Dry | 94 | 86 |
| Wet | 98 | 45 |
| Comfort | 85 | 78 |
| Treadwear | 85 | 59 |
| Handling | 87 | 81 |
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.
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Recomputed
Headline score
90
/ 100
Tire A
66
/ 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 Supercorsa is widely regarded as a high-performance, race-oriented tire that excels in dry, spirited riding and track environments. While users consistently praise its exceptional dry grip and precise handling, the consensus highlights significant limitations regarding longevity and safety in wet or compromised road conditions.
Pros
- Exceptional dry weather grip and cornering stability
- Precise steering feedback and handling characteristics
- Highly effective for track-day use and aggressive riding
- Strong performance on high-quality, clean tarmac
Cons
- Extremely short tread life, particularly on high-torque motorcycles
- Poor performance and lack of confidence in wet or damp conditions
- High price point relative to the rapid rate of wear
- Susceptibility to road debris and surface imperfections
Observations
- Users on litre-class sportbikes report significantly faster tread wear, with some reaching the wear bars in under 2,000 miles.
- Owners of middleweight sportbikes (e.g., Daytona 675) note that the tire's lack of siping makes it feel unstable on uneven or debris-strewn public roads.
Specifications
Specs side by side
| Attribute | A · Avon Spirit ST | B · Pirelli Diablo Supercorsa |
|---|---|---|
| Category | Summer Premium Touring tires | Summer Trackday and Competition tires |
| Vehicle type | Motorcycle | Motorcycle |
Final verdict
Which one should you actually buy?
90
/ 100
Avon
66
/ 100
Pirelli
Winner: Avon Spirit ST — better wet, treadwear and dry. It leads or ties in every category we score.
Pick tire A
Your priority is wet-weather safety
Avon Spirit ST scores 98 vs 45 on wet.
Pick tire A
You want the longest tread life
Avon Spirit ST scores 85 vs 59 on treadwear.
Pick tire A
You want the most grip on dry roads
Avon Spirit ST scores 94 vs 86 on dry.
Pick tire A
You want the most comfortable ride
Avon Spirit ST scores 85 vs 78 on comfort.
Tire A · Avon Spirit ST
Tire B · Pirelli Diablo Supercorsa
More comparisons
Also compared with
Avon Spirit ST also compared with
Pirelli Diablo Supercorsa 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.