The Pirelli Diablo Powercruiser is the first cruiser tyre ever to wear Pirelli's racetrack-bred Diablo name, and it does exactly what that badge promises: it brings genuine sportsbike grip, turn-in and wet-weather confidence to cruisers and baggers. Launched at Daytona Bike Week in 2025, it trades roughly 10 percent of the Night Dragon's mileage for a big step up in dry grip, wet traction, comfort and handling. If you ride a new-generation Harley-Davidson or Indian and you want your bike to steer and stop like it weighs 100 kg less, this is the tyre we now recommend first. Here is the full picture, including every size available in NZ.
In this article
- What is the Pirelli Diablo Powercruiser?
- What is it like to ride on?
- Powercruiser vs Night Dragon: which should you fit?
- What sizes are available in NZ?
- FAQ
What is the Pirelli Diablo Powercruiser?
The Diablo Powercruiser is Pirelli's answer to a simple shift in the cruiser world: the bikes got sporty, and the tyres needed to catch up. Modern baggers and power cruisers make serious horsepower, run modern suspension, and get ridden hard. The King of the Baggers race series has turned that into a full-blown movement.
So Pirelli built the Powercruiser off its sportsbike knowledge rather than its classic cruiser range. The centre tread uses the lightning-bolt "flash" pattern lifted straight from the Diablo Rosso IV, one of the best sport road tyres on the market. The shoulders are effectively slick for maximum contact at lean. The compound is enriched with silica plus a blend of resins and plasticisers, so it warms up fast and keeps working in the wet. Radial sizes get zero-degree steel belts, and the dual-compound rears pair a harder centre for wear with softer shoulder rubber for cornering grip.
The profile is the other big story. Compared with the flatter shapes traditional cruiser tyres use, the Powercruiser runs a rounder, more pointed profile closer to a sport-touring tyre. That is what makes these big bikes turn in quicker and hold a line with less effort.
What is it like to ride on?
The international press tested the Powercruiser on a Harley-Davidson Street Glide at the Tail of the Dragon in the US, and the findings line up with what we hear from riders here: quicker steering response, noticeably better stability under braking, and a more compliant carcass that soaks up bumps better than the rubber these bikes come with. Testers were grinding bags through corners with the tyre still hooked up and composed. Pirelli's engineers are upfront that peak mileage sits about 10 percent below the Night Dragon; that is the price of the softer, grippier package.
Here in the workshop we have been fitting plenty of these since they landed, and the pattern is clear: it is the new-generation bikes they suit best. Riders on 2024-on Road Glides and Street Glides, new-gen Sportsters and Indian's big twins are the ones asking for them, and the feedback after the first decent ride is consistently "the bike feels lighter". If your cruiser is the kind that gets ridden properly, not just polished, the Powercruiser matches how you actually use it.
Sportsbike grip for cruisers and baggers. Full NZ size range in stock, fitted while you wait at our Takapuna store.
Powercruiser vs Night Dragon: which should you fit?
The Night Dragon has been our default Pirelli cruiser fitment for years, and it is still a great tyre. The honest comparison looks like this:
| Diablo Powercruiser | Night Dragon | |
|---|---|---|
| Best for | Sporty riding on modern cruisers and baggers | High-mileage touring and classic cruisers |
| Dry grip and turn-in | Excellent, sportsbike-derived | Good |
| Wet grip | High-silica compound, strong | Good |
| Comfort | More compliant carcass | Firmer |
| Tyre life | Very good (about 10% below Night Dragon) | Excellent |
| Profile | Rounder, quicker steering | Flatter, more traditional feel |
The short version: if you ride a modern performance cruiser or bagger and corners are part of the fun, fit the Powercruiser. If you are racking up big touring kilometres on a classic-style cruiser and outright mileage is the priority, the Night Dragon still earns its keep.
Still the pick for big touring kilometres on classic-style cruisers. Long wearing, V-twin proven.
What sizes are available in NZ?
Cycletreads stocks the full NZ range of the Diablo Powercruiser. Fronts run from 16 to 21 inches, rears from 16 to 18 inches, covering the current Harley-Davidson, Indian and metric cruiser platforms plus custom fitments up to a 260-section rear.
Front sizes:
| Size | Spec | Price (NZD) |
|---|---|---|
| 100/90-19 | 57H TL | $242.90 |
| 110/90-19 | 62H TL | $285.00 |
| 130/60-19 | 61H TL | $439.90 |
| 130/60-21 | 63H TL | $512.90 |
| 130/90-16 | 73H Reinf TL | $342.90 |
| 150/80-16 | 71H TL | $439.90 |
| 160/60-18 | 70V TL | $449.90 |
Rear sizes:
| Size | Spec | Price (NZD) |
|---|---|---|
| 150/80-16 | 77H Reinf TL | $454.90 |
| 160/70-17 | 79V Reinf TL | $427.90 |
| 180/70-16 | 77H TL | $425.90 |
| 180/70-16 | 77V TL | $509.00 |
| 240/40-18 | 79V TL | $599.90 |
| 260/40-18 | 84V TL | $599.90 |
Prices current at August 2026. Not sure which size your bike takes? Call us or check your current tyre's sidewall, and see our guide on how to choose motorcycle tyres for the basics.
Frequently asked questions
What bikes does the Pirelli Diablo Powercruiser fit?
It is built for performance cruisers and baggers: Harley-Davidson Street Glide, Road Glide, Softail and new-gen Sportster models, Indian Chief, Sport Chief and Challenger, and metric cruisers in compatible sizes. Fronts span 16 to 21 inches and rears 16 to 18 inches, so most modern V-twins are covered.
Is the Diablo Powercruiser better than the Night Dragon?
For sporty riding on a modern cruiser, yes: it grips harder in the dry and wet, steers quicker and rides more comfortably. The Night Dragon still wins on outright tyre life, so high-mileage tourers may prefer it.
How long do Diablo Powercruiser tyres last?
Pirelli's engineers put peak mileage about 10 percent below the Night Dragon, which is one of the longest-wearing cruiser tyres around. The dual-compound rear uses a harder centre strip precisely so the sportier rubber does not cost you serious life. Exact life depends on your bike, load and riding style.
Are Diablo Powercruiser tyres good in the wet?
Yes. The silica-enriched compound and the Rosso IV-derived flash tread pattern in the centre of the tyre are designed for fast warm-up and water evacuation. Wet grip is one of the biggest steps up over traditional cruiser rubber.
Should I replace front and rear tyres at the same time?
Ideally, yes, as a matched pair. Mixing a new sporty front with a worn traditional-profile rear (or vice versa) compromises the handling balance the tyre was designed around. If budget forces a choice, talk to us about the right order for your bike.
Ready to give your cruiser sportsbike grip?
Full NZ size range in stock, fitted and balanced while you wait at our Takapuna store. Open seven days.
Shop Diablo Powercruiser →CT Price Promise. 100% authentic, NZ-supplied stock. Staff who actually ride.