Pirelli diablo Rosso III or Bridgestone S21 - KTM Forums: KTM Motorcycle Forum
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post #1 of 30 (permalink) Old 07-05-2016, 08:44 AM Thread Starter
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Pirelli diablo Rosso III or Bridgestone S21

I'm just past the 3year mark on my Duke 690 and will be replacing my OE single compound michilen pilot powers.

I really like this tire but I like to replace my tires within 3 years regardless of wear as rubber does age and harden.

Metzler M7RR is a great street performance choice and I believe OE on the Duke but there are some new street performance tires out.

Has anyone tried the Pirelli Diablo Rosso III or Bridgestone S21?

Locally I can't find a set of Pirellis (they have a front tire - rear is unknown when to be available) and the S21 is to be available later this month.


I've heard the Rosso III is and improvement on the already stellar M7RR.

Feedback appreciated!
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post #2 of 30 (permalink) Old 07-05-2016, 11:01 AM
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Yes what I have read about the Rosso III looks to be a great tire that will have better wet and dry performance than the Rosso II.
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post #3 of 30 (permalink) Old 07-05-2016, 11:46 AM
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I've yet to hear a bad thing about the S21's. I have a set of the S20 EVO's on another bike and I LOVE them. They are super sticky and the S21's are supposed to be more sticky and have 30-40% better life! That and the price would steer me to the S21's over the Pirelli's....

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post #4 of 30 (permalink) Old 07-05-2016, 11:49 AM
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I've had both, and S20's... All very good. Used both on road and track.
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post #5 of 30 (permalink) Old 07-06-2016, 12:32 PM Thread Starter
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A friend just picked up a new yamaha R1 M and it had Bridgestone RS10 tires..super sticky. He stated when they are up for replacement he will get the S21.
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post #6 of 30 (permalink) Old 07-06-2016, 12:42 PM Thread Starter
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Looks like availability of a rear 160/60 of the Diablo Rosso III is unknown here in Canada.

Ill see if the S21s come in soon as promised.

Part of the reason of me going for the Rosso III or S21 is that they are new so no chance they have been stored improperly for 2+ years.
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post #7 of 30 (permalink) Old 07-24-2016, 12:54 PM
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I just ordered as set of Michelin Pilot III's, dual compound and NO RELEASE AGENT so they should be sticky out of the box!!!

More details when I get home next week and spoon the rear on!
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post #8 of 30 (permalink) Old 07-24-2016, 01:38 PM
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I just put my s21 rear on. My q3 of front still has some life so I'll have to wait til I have a set on. I'll report back when after my next trip to the canyons.
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post #9 of 30 (permalink) Old 07-24-2016, 10:15 PM Thread Starter
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Thanks everyone for your feedback!

The S21 nor the Diablo Rosso III won't be available until next month.

I did some research and the Conti Attack SM also seem to be hand made in Germany and warm up quickly. They also don't need a "break in"...or so they claim.

The don't make a tire larger than 160/60. Interestingly the attack SM is only "H" rated - up to 210km/hr which is fine for me. In short the attack SM is for lighter bikes like ours (as wiwee stated). I was surprised my sizes were available so I ordered a set!
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post #10 of 30 (permalink) Old 07-25-2016, 03:37 PM
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Quote:
Originally Posted by 2cati View Post
Conti Attack SM also seem to be hand made in Germany and warm up quickly. They also don't need a "break in"...or so they claim.
When I bought my first set of them I assumed the BlackChiliCompound and not break in was just marketing talk.
Turns out it's sticky and good to go for real.

Loving the new R
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