Tag

seamless transmission

Browsing

Ask Jorge Lorenzo if there is one thing which the Yamaha needs to allow him to compete with the Hondas, and he will tell you it is a seamless gearbox. The system used by HRC on the Honda RC213V allows the riders to shift gear while the bike is still leaned over, without upsetting the machine. It is an important factor in the Honda’s better drive out of corners, as Dani Pedrosa, Marc Marquez, Stefan Bradl, and Alvaro Bautista can shift gear earlier and make optimum use of the rev range to accelerate harder.

That Yamaha is working on a seamless gearbox is no secret, with Yamaha’s test riders currently racking up the kilometers around tracks in Japan, testing the reliability of the maintenance-intensive system to the limit before using it in a race. Recently, however, Spanish magazine SoloMoto published an article suggesting that Yamaha has already been using its new seamless gearbox since the beginning of the season.

In evidence, the magazine pointed to an apparent difference in fuel consumption between the factory Yamahas and the satellite bike of Cal Crutchlow. While both Cal Crutchlow and Valentino Rossi made mistakes at Qatar, only Rossi was able to recover, and then battle with Marc Marquez for the podium. The theory put forward by SoloMoto was that the smoother transition between gears gave both better drive and lower fuel consumption, as the ignition is cut for a much shorter period, wasting less of the limited gasoline the MotoGP bikes are allowed.

My own enquiries to check whether Yamaha was using a seamless gearbox or not always received the same answer: no, Yamaha is not using the seamless gearbox. The reason given was simple: with Jorge Lorenzo defending his title and Valentino Rossi in the race for the championship, they simply cannot afford to have a single DNF down to a mechanical failure of the new-fangled seamless gearbox. The risks involved were just too great, especially when taking the reduction in engine allowance into account, with just five engines allowed all season, down from six in 2012.

To test this denial, I went out to the side of the track on Friday morning at Jerez to record the bikes as they went by. I sat at the exit of Turn 10, Peluqui, and recorded the bikes as they accelerated towards Turn 11. It is a spot where they change gear once, before braking briefly for Turn 11 and then powering on to Turn 12 and the final short straight and hairpin.

Two championships could be settled at Phillip Island on Sunday. Marc Marquez looks certain to wrap up the 2012 Moto2 title in Australia, as the Catalunya Caixa rider needs just 2 points to put the title out of reach of Pol Espargaro. Marquez’ chances of wrapping up the Moto2 title with a win look slim, though. Pol Espargaro has been in a class of his own at Phillip Island, his love for the circuit showing through in the way he has been riding.

The only man to get near to Espargaro all weekend has been Scott Redding, as Phillip Island is one place where Redding’s size is less of a handicap. With few places where hard acceleration from low speed is required, Redding can rely on his natural speed to get around the track. Despite still being the youngest rider ever to win a Grand Prix – a title he is likely to hold in perpetuity, since the minimum age went up to 16 – Redding is still winless in Moto2. If he can follow the pace of Espargaro, Phillip Island could well provide him with a real shot at his first win.

The MotoGP title may not be settled in Australia, though. Jorge Lorenzo leads Dani Pedrosa by 23 points, and just needs to finish ahead of the Honda man to wrap up the championship at Phillip Island. The odds of that happening looked much better on Saturday, Lorenzo taking 2nd spot in both the morning’s free practice and qualifying in the afternoon, finishing ahead of Pedrosa in both sessions.

But Lorenzo may yet have to leave the box of championship t-shirts in the flight cases, as a closer look at the race pace between Lorenzo and Pedrosa gives the advantage to the Honda man. Lorenzo is lapping consistently in the high 1’30s and low 1’31s, but Pedrosa has been reeling off strings of high 1’30s in race trim.

Well, 2011 as a year is finally over, and for the motorcycling community it was quite a year. As we begin 2012, we here at Asphalt & Rubber are of course not immune to the desire to summarize and highlight the passing of 2011. So we accordingly assembled 11 of the most important events that shaped motorcycling this past year and changed the way the sport, the industry, and the community will grow in the years to come.

Picking only eleven moments in a single year is no easy feat, though some of the events in our selection are obvious choices because of their magnitude. However, some of the less obvious picks (and we are sure there will be suggestions for alternatives in the comments), stem from the theory that 2011 saw moments whose importance has yet to be fully appreciated at this point in time. Enjoy and a Happy New Year to our loyal A&R readers.