The soon-to-be-announced recall affects only a limited number of units, but centers around the gearbox on some R1’s having components of inadequate strength, which could cause the transmission to seize under extreme shifting, and thus result in a crash.
Why did the factory Yamaha team head to the Motorland Aragon circuit to join Honda and Suzuki at a private test? Was it perhaps to give Jorge Lorenzo and Valentino Rossi their first taste of the seamless gearbox Yamaha have been developing, to counter Honda’s advantage?
That is the question which many fans have been asking, and in recent days – and weeks – I have been inundated with questions about the seamless gearbox. Well, question, singular, actually, as it all boils down to just the one: When will Yamaha finally start to race their seamless gearbox?
It is a question I have been trying to pursue since the start of the season, since rumors first emerged that they may have used the gearbox at the first race of the year. All inquiries I made, at all levels of the Yamaha organization, received the same answers: Yes, Yamaha is developing a seamless gearbox, and is testing it back in Japan. No, Yamaha has not yet raced it, and has no plans to race it. And no, it is not yet ready to be tested.
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.
With Honda’s electric motorcycle racing effort thinly disguised as the Mugen Shinden and getting a tremendous amount of attention, the motorcycle racing press missed the very subtle joint-entry by Zytek Automotive and Bournemouth Kawasaki Racing into the 2012 TT Zero. Already incorporating one of the most advanced technology groups in electric and hybrid automotive technology, as well as one of the top Isle of Man TT racing teams, the Kawasaki-Zytek ZX10ev race bike also benefits from another important element: the backing of Kawasaki Motors UK.
Using one of Zytek’s 100 kW (134 hp) permanent magnet oil-cooled KERS motors for its power plant, the Kawasaki-Zytek ZX10ev has the added benefit of a six-speed gearbox, which like the bike’s chassis, is a recycled component from the Kawasaki Ninja ZX-10R donor bike the electric racer is built from. Using the firm’s automotive racing experience to its benefit, Zytek’s motor design has previously been used on the company’s Hybrid Le-Mans 24 hour race-winning car, and uses technology similar to Zytek KERS system used in the 2009 Formula 1 Championship.
Powering the motor will be four 15Ah LiFeP04 cylindrical cell battery packs, which have been located in the ZX-10R’s fuel tank, airbox, radiator, & exhaust for a total of 11.8 kWh in energy storage. “The shape of the Ninja ZX-10R frame is designed to curve around a conventional engine, and does not lend itself naturally to the fitment of a battery,” said Zytek Project Manager Des Hill. “We have ended up filling the area normally use by the tank, air-box, radiator and exhaust with four sculpted packs. In total we have 240 power cells carefully distributed around the bike.”
Teased, delayed, and dismayed, fans of the Empulse should be able finally to get their hands on the Brammo Empulse in 2012, as the Oregonian company has been busy finalizing the Empulse’s design and technical specifications for its street bike release. Rumored to incorporate the six-speed SMRE-designed integrated electric transmission (IET) found on the Brammo Engage and Brammo Encite, a video has cropped-up that shows a test mule Brammo Empulse with the IET gearbox fitted to it. Naturally one of the testing requirements is a fat parking lot burnout.
Ducati Corse continues to battle a war on two-fronts: both by trying to market itself out of an otherwise disastorous MotoGP season, and also to rapidly develop and search for answers to the lackluster Ducati Desmosedici GP11. The latest news out of Bologna now leans more towards this latter effort (or is it the prior?), as Ducati Corse has announced that it will bring a version of its 2012 chassis to Assen for Valentino Rossi to use in the Dutch TT.
The Ducati Desmosedici GP11.1, as they’re calling it, features a modified motor, and will debut Ducati’s next-generation gearbox: the Ducati Seamless Transmission (DST). Ducati hopes bringing out the new chassis, which has already been given the nod by both Rossi and teammate Nicky Hayden, will not only help turn around the season’s results, but also expedite development for the Ducati Desmosedici GP12. Along with a new carbon chassis, the GP11.1 features an inverted swingarm design, which sees the rear shock mounted higher-up with a special rear-subframe assembly.
Hero Motors has just inked a deal with BMW that sees the Indian motorcycle manufacturer building gearboxes for the Bavarian brand not only in the Indian market, but also worldwide. The five to eight year deal will see Hero building gearboxes for BMW on a variety of motorcycles, and we presume scooters, though which models exactly remains to be seen.
The news is a boon for the Indian motorcycle manufacturing industry, as it adds further credence to the country’s technical prowess. The deal is also beneficial for BMW as well, as the German company will not only be able to build its bikes for cheaper, but we’re sure BMW is gaining a foothold on the lucrative Indian market from the transaction as well. BMW currently imports fully-built motorcycles into India, but with this news, we see that business practice changing in the near future.
British transmission gurus Xtrac is better known for its history in Group A rally racing, and more recently for its work with the Lotus, Virgin, and HRT Forumla 1 teams (resume clients also include teams from IndyCar, Touring Car, Rally, GRAND-AM, and the 24 Hours of Le Mans); but with its latest announcement, Xtrac could add a new bullet point to its laundry list of achievements.
Recently pulling out of stealth mode its newest piece of gearbox madness: the Instantaneous Gearchange System (IGS), Xtrac’s race-bred driveline technology promises to be a lighter, cheaper, and less complex alternative to dual-clutch transmissions (DCT), which have popped up on the Honda VFR1200F & Honda Crosstourer Concept, and is rumored to hit the Honda CBR1000RR and Yamaha R1 in the coming models years. The key to IGS resides in the fact that the gearbox can simultaneously select and engage two gears at the same time, while employing only one set of drive gears, thus resulting in gear changes that have zero power loss to the wheels.
As we edged closer to the official unveiling of the 2010 Honda VFR1200F, more details about the bike are starting to emerge. This latest detail confirms the rumor that the new VFR would be fitted with a dual-clutch transmission, making it the first motorcycle to incorporate such a gearbox design.
Similar to the DSG clutches found on Audi and Volkswagon cars, the Honda dual-clutch transmission will incorporate two clutches that alternate what gears they actuate, making for rapid shift times. Click past the break for pictures, video, and more on the VFR1200 transmission.