Pirelli offers first public glimpse of wider F1 tires for 2017

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Pirelli has revealed its new wider tire models for the 2017 Formula 1 season, harking back to the rubber used in the 1970s and 1980s.

As part of the overhaul being undertaken on the technical regulations for next year, Pirelli was asked to produce wider and more durable tires, and received 25 days of testing to prepare for their implementation.

At an event in Monaco on Saturday morning, Pirelli offered a public glimpse of the new tires for the first time, fitted to a show car.

The Italian supplier also released an accompanying video and statement explaining the changes.

“Pirelli has already begun track testing tires in the current size but with constructions and compounds for 2017, using cars that are two or three years old,” the statement read.

“From roughly the beginning of August, current or 2015 cars will be tested on track equipped with the first prototype F1 tires in the new size. And we’re talking about a considerable increase: the front tire grows from 245 to 305 millimeters wide (which is nearly the same width as the current rear) while the 2017 rear grows from 325 to 405 millimeters.

“The diameter stays more or less the same, with a slight increase from 660 millimeters to 670 millimeters (the same as the current rain tire diameter, except with a slick rather than patterned surface). The wheel size remains the same as it has always been: 13 inches, giving Formula 1 a unique look that it doesn’t yet want to renounce.

“Nonetheless, as a showcase of what is possible, Pirelli has already successfully demonstrated 18-inch tyres on track and remains open to investigating even larger sizes in future.

“In order to give an idea of the scope of the changes without getting too bogged down in mathematics, the front tire will become nearly 25% wider, while the rear tyre becomes more than 30% wider. There will be a corresponding increase in the tire footprint: the amount of tire that is physically in contact with the ground at any given point.

“This is where the extra grip comes from, enhancing each car’s ability to put its power down onto the ground, leading to more performance through corners as well as under acceleration and braking.”

Ferrari reserve driver Jean-Eric Vergne completed a test with the new compounds earlier this month at Fiorano using a 2014-spec car.

The Frenchman was impressed by Pirelli’s developments, telling NBC Sports that he thought 2017 would be “great” for F1 tires.

The wider tires will undoubtedly help F1’s drive to make the cars look more aggressive, while the additional grip will contribute to the multiple second gain in lap time that is coveted.

Houston Supercross by the numbers: Five riders begin to gap the field

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Chase Sexton stumbled in San Diego and Eli Tomac had a hard fall in Anaheim 2, but the Monster Energy Supercross numbers for Houston suggest they will continue to be the ones to beat in Houston. To do so, they will have to turn back challenges from another pair of riders who have swept the top five in the first three rounds and another with a worst finish of sixth.

Houston Supercross numbers
Cooper Webb’s ability to close races makes him a Houston favorite. – Feld Motor Sports

Despite an accident in his heat in San Diego that sent him to the Last Chance Qualifier (LCQ), Sexton recovered to score a top-five that weekend. His podium finish in Anaheim 1 and overall win last week in Anaheim 2 makes him one of the three riders with a perfect top-five record. He is joined by Cooper Webb, who finished second in the first two rounds and fourth last week, and Ken Roczen, whose consistency in the first three races contributed to him grabbing the top spot in this week’s NBC Supercross Power Rankings.

There are reasons to believe Webb and Roczen can keep those streaks alive.

Webb is the only multiple winner at Supercross’ current Houston stadium. His pair of wins came in 2019 and 2021, the same year he won his two 450 championships.

Clinton Fowler points out this week, that Webb has carried that strength into 2023. Webb had a late surge in Anaheim 1, advancing from fifth to second in the final six laps. In San Diego, he set his ninth fastest lap with two to go and his eighth fastest on the final lap. He posted his fastest lap of Anaheim 2 on Lap 12 while the rest of the field did so on Lap 6 on average.

By comparison, Tomac set his 14th fastest lap on the final circuit in route to winning the Main at San Diego while he was trying to keep Webb at bay.

With a sixth at San Diego, Dylan Ferrandis barely missed sweeping the top five in his first three races as did Tomac with a sixth last week at Anaheim 2.

This will be the 46th year Supercross has visited Houston and with 55 races the city is tied for the second-most with Detroit. Jim Pomeroy won the first race in the Astrodome in 1974. Webb won most recently in 2021 in the final race of three held there that year as the series executed a strategy of racing in residencies to limit travel during height of the COVID-19 pandemic. Tomac and Justin Barcia also won in Houston in 2021.

Two privateers have started the season on a high note.

Joshua Cartwright and Joshua Varize have each made the last two Mains. Cartwright finished 18th in San Diego and 21st last week in Anaheim 2 – all while working fulltime as a Business Intelligence Analyst at the University of Texas, Dallas. Varize earned a top-15 (12th) in San Diego and was 21st in Anaheim 2 in his third season on a 450.

Michael Mosiman scored his first 250 win last year in San Diego. – Feld Motor Sports

The numbers show none of the active 250 Supercross East riders have won in Houston, so no matter who steps on top of the box, there is going to be a fresh face. That is not surprising since most of the top competitors have not raced at this venue yet.

Michael Mosiman has a pair of top-fives there, however. His best finish was a second in the second 2021 race. Garrett Marchbanks scored a top-10 in his rookie season of 2019 in Houston.

In the 250 East division, Hunter Lawrence is one of the favorites to win the title now that Christian Craig has moved to 450s. Last year he had four wins and nine podiums, but failed to set a fast lap in a race.

The other 250 riders with 2022 wins this week are Mosiman, who earned his first Supercross win last year in San Diego, and Nate Thrasher, who became the fifth new class winner at Daytona.

Jeremy Martin will attempt to extend a record this week in Houston. His division leading SuperMotocross podiums number 65. He has 26 wins in the combined sessions, which ranks fourth all time.

Last Five Houston Winners

450s
2022, no race
2021, Race 3: Cooper Webb
2021, Race 2: Eli Tomac
2021, Race 1: Justin Barcia
2020, no race
2019, Cooper Webb
2018, Jason Anderson

250s
2022, no race
2021, Race 3: Colt Nichols
2021, Race 2: Jett Lawrence
2021, Race 1: Christian Craig
2020, no race
2019, Dylan Ferrandis
2018, Aaron Plessinger

By the Numbers

Anaheim 2
San Diego

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