Digital Edition Subscribers: Read Roadracing World Magazine Now >
Roadracing World.com - An Online Service of Roadracing World Magazine
SHARE:
Apr 9, 2014

Bridgestone: COTA's Right-Handers Are Tougher On MotoGP Tires Than More Numerous Left-Hand Turns

The start of the 2013 Red Bull Grand Prix of The Americas.

Bridgestone MotoGP™ Preview - Round 2: Americas, Austin

Bridgestone slick compounds available: Front: Soft & Medium; Rear: Soft, Medium & Hard (Asymmetric)

After a successful debut event last year, MotoGP™ returns to the Circuit of The Americas in Austin, Texas with legions of American fans set to be thrilled after an intense season opener at Qatar.

The Circuit of the Americas packs every type of corner into its 5.515 kilometres making it one of the more technical venues on the calendar. Elevation changes, the longest straight in MotoGP™, and a combination of slow and fast corners makes the circuit a real challenge for the riders and tyres. The fast, sweeping corners require high levels of edge grip, while drive grip from the centre section of the tyre is also important as there are many hard acceleration zones at this track. The riders approach a top speed of almost 350 km/h down the 1200 metre-long back straight, so excellent front tyre stability is required for the hard braking zone into turn twelve.

Overall, the layout of the Circuit of The Americas places similar loads on both shoulders of the rear tyres, yet the presence of high speed right-hand corners at turns sixteen to eighteen and turn six, means the temperature of the right shoulder of the rear tyre reaches a higher level than the left side, even though there are more left-hand turns. Consequently, asymmetric rear slicks with slightly harder rubber on the right shoulders are offered for this circuit.

Open class and Ducati riders will be offered the soft and medium compound asymmetric rear slicks, while the Factory Honda and Yamaha riders can utilise the medium and hard compound rear. With front-end feel important through the faster sections of the track, the front slick options for this circuit – the soft and medium compounds – are selected for the best combination of grip and stability.


Hiroshi Yamada - Manager, Bridgestone Motorsport Department

“Last year’s inaugural MotoGP round at Circuit of The Americas was a resounding success, both on and off the track so I am very happy to be returning to Austin. North America is one of our most important markets so being able to support MotoGP as Official Tyre Supplier at such a fantastic venue is of great value to Bridgestone. The season opener at Qatar was incredibly close in terms of the competitiveness amongst the riders, and I hope that this weekend’s action proves to be just as thrilling for the fans. This circuit has a real mix of corners and presents some good overtaking opportunities and now that all the teams have last year’s data to build upon, I expect to see the riders pushing hard from the first practice session.”


Shinji Aoki - Manager, Bridgestone Motorsport Tyre Development Division

“This year will be our second visit to Austin’s Circuit of the Americas and the impressive layout of this track presents quite a challenge for tyre development. COTA is run in a counter-clockwise direction and the track is technical with a mix of tight, slower corners and faster, more open sections. These features combine to place a great importance on front-end feel, as maintaining good corner speed is important here. Therefore our front tyres need to provide good grip characteristics with plenty of stability. The rear tyres must also provide good drive out of the slower corners. The fast right-hand corners are quite severe on tyres, so at this circuit we provide asymmetric rear slicks with slightly harder rubber on the right shoulder.”