Available 
Diablo Rosso III 120/70 ZR17 58W
from £116.80-£118.82.
£116.8-£118.82
Tyre sizes tracked: 120/70 ZR17 58W
Pirelli Motorcycle tyre
Scorpion MX 32 80/100 D21 51M review
Pirelli Scorpion MX 32 80/100 D21 51M is a specialist front motocross tyre for medium-soft terrain, so exact fitment matters more than hype. Confirm the current sidewall or bike placard before ordering, and check live stock, price and delivery on the retailer page.
Car Part Specialist may earn a commission if you buy through links on this site.
Last verified: 2026-09-07
Quick verdict
Pirelli Scorpion MX 32 80/100 D21 51M is a front motocross tyre aimed at riders who need an exact size match and a medium-soft terrain focus. The tracked price range of £85.18 to £151.54 looks competitive against the market median, but the key check is still whether 80/100 D21 51M is the correct front fitment for your bike. Because owner-review evidence is thin, treat this as a shortlist comparison, not a strong consensus verdict.
Available tyre sizes and prices
Scorpion MX 32 80/100 D21 51M is listed with 5 tyre size options from £85.55-£127.33. The visible tyre sizes include 80/100 D21 51M, so use the table to compare the option that matches the exact size, colour, format or specification you want. Always confirm the final checkout price, delivery charge and stock status on the retailer page.
| Tyre size | Season | Price | Stock | Last checked | Link |
|---|---|---|---|---|---|
| 80/100 D21 51M | Check retailer | £86 | In stock | 2026-09-07 | View |
| 80/100 D21 51M | Check retailer | £86 | In stock | 2026-09-07 | View |
| 80/100 D21 51M | Check retailer | £89 | In stock | 2026-09-07 | View |
| 80/100 D21 51M | Check retailer | £127 | In stock | 2026-09-07 | View |
| 80/100 D21 51M | Check retailer | £102 | In stock | 2026-09-07 | View |
Key product details
These are the retailer details worth checking first for Scorpion MX 32 80/100 D21 51M: Brand: Pirelli; Type: Motorcycle tyre; Tyre Sizes tracked: 80/100 D21 51M; Price range: £85.55-£127.33. Treat them as a quick fact sheet, then use the retailer page to verify any installation, warranty, delivery or model-number details before buying.
| Brand | Pirelli |
|---|---|
| Type | Motorcycle tyre |
| Tyre Sizes tracked | 80/100 D21 51M |
| Price range | £85.55-£127.33 |
| Owner rating signal | Not enough owner-review data yet |
| Last checked | 2026-09-07 |
What the product page evidence confirms
The retailer page could not be read directly, so the safest confirmed details come from the product title, tracked listing data and manufacturer technical information. What is clearly identified is Pirelli, motorcycle tyre, size 80/100 D21 51M, front position in the Scorpion MX32 Mid Soft family, plus MST and NHS-related markings in the supplied technical data. Check the retailer for the latest live price, stock status and delivery charge before ordering.
What the wider evidence suggests
Pirelli positions the Scorpion MX range as a motocross and off-road family, and the MX32 Mid Soft is described as competition-focused for medium-soft terrain such as mud, grass and soil. That makes this tyre much more specific than a general-purpose option, so the value is in use-case match rather than broad versatility. Public owner-review coverage for this exact 80/100 D21 51M size is limited, so the strongest evidence here is specification and intended use rather than long-term ownership commentary.
Buyer trade-offs to compare before buying
The main trade-off is exact fitment versus broader off-road flexibility: 80/100 D21 51M is a front size confirmed in Pirelli’s technical data, but it only makes sense if it matches your bike’s current sidewall or placard. The second trade-off is terrain focus, because this Scorpion MX32 Mid Soft leans toward medium-soft motocross conditions rather than harder ground or mixed-use riding. Finally, check whether the MST/NHS marking is what you need, then confirm final checkout price, stock and delivery on the retailer page.
Price and value benchmark
At the tracked starting price of £85.18, this sits below the comparable-product median of £114.96, so the listing is not overpriced on position alone. The wider tracked range of £85.18 to £151.54 shows that variant pricing can move a lot, which usually means shoppers should compare the exact size and spec rather than assume every option is close in value. It feels best judged on correct fitment and terrain match, not on price in isolation.
How it compares with nearby alternatives
There are 5 tracked variants for this product, which is more choice than the usual peer listing, so comparing sizes within the Scorpion MX family matters. Nearby alternatives in the tracked set include Scorpion MX 32 70/100 D19 42M and Scorpion MX 32 120/80 D19 63M, which are same-family comparison options rather than direct swaps for every bike. Compare the exact tyre size, the front or rear role, and the intended terrain before choosing, because these are not like-for-like replacements.
How to read the review evidence
Review evidence for Pirelli Scorpion MX 32 80/100 D21 51M is thin, and the visible public commentary is mainly launch or media coverage rather than a large body of owner reports. The retailer page was not directly readable, and the tracked rating details shows no meaningful owner-review count, so any displayed rating should not be treated as strong proof of real-world satisfaction or durability. Use the visible review context as supporting background only, and lean more heavily on the confirmed Pirelli specification, the 80/100 D21 51M front fitment, and the medium-soft MX32 Mid Soft terrain focus.
Who it suits
This tyre suits riders looking for a front motocross option with a clear Pirelli competition pedigree and a medium-soft terrain bias. It is also a sensible shortlist for buyers who are price-conscious but specification-aware, because the tracked price sits below the comparable median while still coming from a specialist off-road family. If your priority is exact size fitment, Scorpion MX 32 80/100 D21 51M is worth comparing closely.
Who should avoid it
Avoid this tyre if your bike does not call for 80/100 D21 51M at the front, or if your current fitment and placard point to a different size. It is also a poor match if you need a different terrain focus or a product where long-term owner-review evidence is plentiful. Do not generalise road use, wet-road behaviour or longevity from motocross-focused sources here.
Load, speed and marking checks
The 51M marking on Pirelli Scorpion MX 32 80/100 D21 51M tells you the load index and speed rating to compare against your bike’s requirements, while MST and NHS-related markings indicate motocross-specific fitment that should be checked against intended use. Those details matter because a tyre can look similar in size but still differ in marking and purpose, even within the same Scorpion MX32 family. Confirm the sidewall on your current tyre, the bike placard and the retailer description before you buy, especially if you need the front 80/100 D21 size rather than another MX32 variant.
Value conclusion
On value, Pirelli Scorpion MX 32 80/100 D21 51M makes sense if the fitment is correct, the front position matches your bike, and you ride medium-soft motocross terrain. The competitive tracked price is a plus, but live stock, delivery and final checkout cost still need checking before purchase. If the size or terrain focus is wrong, a cheaper alternative is not good value; if it matches, this is a credible specialist buy.
Good alternatives to compare
The closest alternatives to compare with Scorpion MX 32 80/100 D21 51M include Diablo Rosso III 120/70 ZR17 58W, Scorpion MX 32 70/100 D19 42M, Scorpion MX 32 120/80 D19 63M. Use these cards to check whether a nearby model gives you a better price, a more suitable specification or a clearer match for your space and budget.
Available
Scorpion MX 32 70/100 D19 42M
from £83.25-£101.35.
£83.25-£101.35
Tyre sizes tracked: 70/100 D19 42M
Available
Scorpion MX 32 120/80 D19 63M
from £90.61-£117.01.
£90.61-£117.01
Tyre sizes tracked: 120/80 D19 63M
Retailer details used
Last checked 2026-09-07. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
More tyres to compare
These related guides and reviews can help you compare nearby options before buying.
Questions about this tyre
Is the Pirelli Scorpion MX 32 80/100 D21 51M the correct front fitment for my bike?
Only if your bike calls for 80/100 D21 51M at the front. Confirm the current sidewall on your existing tyre or the bike placard before ordering, because fitment should not be guessed from the name alone.
What does 80/100 D21 51M mean on this motocross tyre?
80/100 is the size, D21 refers to the 21-inch rim, and 51M is the load index and speed rating. In the supplied technical data this size is also listed with MST-related marking, so it is worth checking the retailer description carefully.
Is this tyre suitable for medium-soft terrain only, or more general off-road use too?
Pirelli positions the MX32 Mid Soft for medium-soft motocross conditions, including mud, grass and soil. That makes it a specialist off-road tyre rather than a broad all-rounder, so compare it with other Scorpion MX options if your terrain is harder or more mixed.
What should I check about MST/NHS markings before buying?
Check whether your bike and intended use call for an MST or NHS-marked motocross tyre. On this Pirelli Scorpion MX 32 80/100 D21 51M listing, those markings are part of the technical detail, so they should be matched to the bike placard and retailer description before checkout.
How does the listed price compare with other tracked variants?
The tracked price range for this product is £85.18 to £151.54, and the starting price sits below the comparable-product median of £114.96. That makes the listing look competitive, but the exact variant and live checkout total still matter more than the headline starting price.