Bridgestone Battlax Hypersport S-21 Rear Tire

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Rating 4.95 of 5 (8 Reviews)

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Bridgestone Battlax Hypersport S-21 Rear Tire

 

To develop the Battlax S21, Bridgestone engineers took the renowned wet performance of S20 EVO and combined it with new, innovative features to improve dry performance and extend mileage. Additionally, stability, handling and cornering have all been improved through a modified pattern that enhances tread rigidity and contact patch performance.

 

Upgraded on dry:

  • The front tire is designed with a smaller crown profile for better handling and precision through corners without losing the superb neutral feeling, together with a triple-layer compound and high-stiffness bead fillers for optimum damping and stability.
  • The rear tire has a larger crown profile which together with the optimized belt construction and groove positioning, upgrades the rear feeling and increases cornering stability. Less slip in the contact area reduces wear, adding to mileage.
  • Both front and rear have a new shoulder compound, developed with Bridgestone's advanced expertise at the molecular level, which provides a larger micro contact patch for higher grip, more confidence and faster cornering in wet and dry.
  • Many of the improvements brought to S21 were achieved using Bridgestone's new ULTIMAT EYE indoor testing facility - the first tire to benefit from this technology. ULTIMAT EYE visualizes the contact behavior of a tire under different speeds and conditions, analyses contact patch pressure distribution, and helps find the optimal combination of compound, tread design, construction and profile.

Faster through corners:

The performance of the new Battlax radial has been verified on the track in wet and dry conditions. Testing by Bridgestone versus S20 EVO shows the advantage of greater stability with S21 clocking significantly higher cornering speeds at entry, keeping a sharper line and leaving with faster acceleration, trimming average lap times by almost two percent. Overall S21 represents a real step forward in dry performance - particularly cornering stability and handling. What's more, all these improvements delivered up to an additional 30 percent increase in mileage.

 

  • Item # 79587
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**Closeouts are limited to stock on hand**

Product Reviews 1 - 8 of 8

Overall Rating: 4.95 of 5

(8 Reviews)
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What Other Riders Are Saying...

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Much better then BT015

So far this tire has been great even through the scrub in period of 100miles I can feel the road much better and this tire responds much better in the corners where as with the BT015 I got slippage on heard bank cornering at high speed This tire grabs all the way to the shoulder and I'm getting down and dragging pegs so I'm impressed and wet grip is awesome I will buy again Can't say for ware but we will see so far with 500 miles and some hard track time this tire still looks new we will see how it holds up next summer as riding season is almost done up here.

Lance - October 11, 2016

(Buffalo, WY)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Great replacements for Q3s

Great tire. Leaned to the edge with confidence in the dry with good feel overall. Got about 3.5k miles on a rear that saw track time and plenty of twisty roads and hard acceleration. Wet traction is good on a straight line and very slow leaning, I'm too much of a chicken to take any considerable lean angle in a wet road. The only downside with the S21 is that if you mount your own tires, they are super stiff to mount.

Cuban - August 17, 2016

(Richmond, VA, VA)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Front and rear

Only tires I run on my Ducati 1199. Good for corners and last longer on street riding.

Cameron - August 11, 2016

(Junction city , KS)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Great tire

I have a 2011 Ninja 1000. I was looking for something that would have corner and stopping grip and these tires were on the money. I ride as sporty as it gets without dropping knees to the pavement and haven't had an slips yet. Only have about 500 miles so I can't say if they're going to go the distance.

Michael - July 20, 2016

(Atascadero, CA)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Bridgestone Battlax Hypersport S-21

This has proved to be an excellent tire choice for my Kawasaki ZX10R. The ride and handling seem to be superior to the BT-016 that were replaced. It is not possible to rate Tread Life or Wet Traction. I haven't had them long enough for the former. Nor have I been caught out in the rain for the latter. The review responses should be N/A for these. I'll leave them as 5 Star as my experience with Bridgestone tires (Motorcycle and Automotive) has shown them to exhibit excellent tread wear. I'll have to take a leap of faith on the wet traction. (I don't do a lot of rain riding)

Dorian - July 20, 2016

(Columbia, MD)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Excellence Tire

Have not driven in the wet conditions with it but the bike turns in so much better from the previous generation S-20.

BJ - June 24, 2016

(Cincinnati , OH)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Freaking Awesome Tire

I have had the Pirelli Diablo Rosso 2s, Metzler M5s, and the Michelin PP2CTs on my current bike and have never felt the confidence I do with the S21s. From the scrub in process to having over 1k on the tires, these S21s grip the road and give me feedback from the road that gives you confidence in your riding. Give these tires a chance and you will be glad you bought them.

Jacob - June 1, 2016

(Memphis, TN)

Stability

Cornering

Dry Traction

Wet Traction

Tread life

Best I've used so far

Bought them for my first track day as a replacement to BT16 pro. I can honestly say so far they are the best I've used; tried BT16, Diablo rosso corsas "JUST AS GOOD", BT16 pros, S20 evos, Metz M5 and Q2s. For sure my zx10r love this one outstanding grip at the track and off so far, not many miles yet but they are looking as good as new. Better grip than my BT16 pros and for the looks are going to last longer than the S20 evos; best of both worlds will buy them again. Not seen rain yet but as a floridian I'll get some soon I'm sure; if only they are half as good as on dry I'll be happy.

ernesto - April 11, 2016

(Cape Coral, FL)