fireblah

-- 2012 Yamaha YZF-R1For the 2012 season Yamaha will introduce an uprated YZF-R1 featuring a range of important MotoGP inspired engine and chassis changes which are designed to elevate the performance and enjoyment of this unique race-proven motorcycle to another level.
Since its launch the latest-generation R1 has set new standards for engine and chassis performance on the road and track, winning the World Superbike Championship at its first attempt in 2009 with Ben Spies.
Powered by a 998cc in-line 4-cylinder engine equipped with an innovative crossplane crankshaft, the latest-generation R1 delivers a truly special blend of linear power combined with superior traction and outstanding cornering performance.
Unlike conventional 180º - 180º - 180º - 180º crankshaft designs – which feature con rods and pistons moving up and down in pairs – the R1’s crossplane crankshaft features an uneven 270° - 180° - 90° - 180° firing interval which gives each piston and con rod its own individual and separate movement. The combination of an asymmetric firing sequence with the staggered con rod layout makes for a stronger low to mid-range pulse, as well as a more linear torque output for higher traction – and as a bonus the rider can enjoy a truly unique exhaust note!
On the road or track the R1 rewards the rider like no other large-capacity supersport machine, and for even more highly purified excitement the 2012 R1 is equipped with an advanced Traction Control System (TCS) for wider ranging controllability in a variety of conditions.
As every rider knows, a feeling of total confidence in your machine’s abilities is one of the most important qualities that any bike can offer, and the new TCS inspires a high level of trust in the new R1’s roadholding performance. By monitoring and controlling rear wheel spin, the new TCS creates a special bond between the rider and machine, enabling the owner to exploit the enormous potential of this outstanding motorcycle.
In addition to the new TCS, the latest R1 benefits from an optimised engine control unit for improved corner exits and stronger low to mid-range performance.
A reshaped front cowl enhances the bike’s pure race-bred looks, while a newly-designed YZR-M1 style handlebar crown and reshaped footrests make for an even greater feeling of rider-machine unity.
- New 6-mode Traction Control System
For the 2012 season the R1 is equipped with an advanced new 6-mode TCS (Traction Control System) which has been developed using feedback gained from the winning Yamaha YZR-M1 MotoGP racer.
The new Yamaha TCS constantly monitors sensors in the front and rear wheels, and when any rear wheel spinning is detected the system alerts the ECU which instantaneously adjusts the degree of throttle opening, fuel injection volume and ignition timing. With six settings plus an ‘off’ mode, the R1’s new TCS can be adjusted to suit differing rider requirements, as well as a wide range of surface and weather conditions - and when used in association with the existing three-mode Variable Map Function, the 2012 R1 offers a total of twenty-one engine set-up options.
The R1’s crossplane crankshaft engine has already established an enviable reputation for its high levels of linear torque output, and the addition of the new MotoGP-developed TCS allows the rider to exploit the bike’s already high levels of traction to an even greater degree. The benefits of the new TCS are particularly evident on winding roads, where the new system enables and encourages performance-minded riders to bring out the full performance of this remarkable motorcycle.
As well as enjoying their bikes on the public highway, a significant proportion of R1 owners are also exploring the bike’s potential in the controlled environment of race circuits, and it is on the track that the TCS gives a real quantifiable advantage. By fine-tuning the system to suit the prevailing conditions, R1 riders can optimise the bike’s linear torque characteristics and are able to push harder on the circuit for improved lap times. As well as the undoubted technical advantages it offers, the R1’s TCS is also designed to reinforce confidence, allowing the rider to perform at an even higher level on the circuit.
- Optimised ECU
In order to achieve a new level of driveability, the 2012 R1 also benefits from the fitment of a new re-mapped ECU. The revised mapping covers the degree of throttle opening for the YCC-T (Yamaha Chip Controlled Throttle), as well as the fuel injection volume and the ignition timing functions. These changes to the ECU improve low to mid-range controllability and out-of-the-hole performance – which, in the real world, equates to stronger acceleration when powering out of slow corners, and better roll-on acceleration when overtaking.
- New YZR-M1 style handlebar crown
Another YZR-M1 inspired feature on the 2012 R1 is its new handlebar crown, which is based on the design featured on the Yamaha MotoGP factory race bike. Manufactured from gravity-cast aluminium, this high-specification component underlines the machine’s quality feel and appearance.
Also new is the special relief pattern cast into the handlebar crown’s back face, which helps deliver an outstanding balance of rigidity to complement the handling characteristics of the compact short-wheelbase chassis.
- Newly-designed footrests
For 2012 the footrests have been redesigned, and they now feature a modified tread pattern of cast aluminium protrusions which deliver improved feel and fit. This revised design enables the rider to shift their feet easily and quickly for more efficient body weight transfer when cornering.
- New-look low-drag front cowl
A new-look front cowl is introduced for 2012, and as well as giving the R1 a more menacing ‘glare’, the latest low-frontal-area design offers improved aerodynamics. Compared to the existing model, the section beneath the two ‘eyes’ of the headlights has been opened, and a sharper line is created above the ‘eyes’.
The central nose portion of the cowl sits higher than the existing model, and the surfaces either side of the nose portion have been reshaped. Although relatively subtle, the combined effect of these changes is to refresh the face of the 2012 R1, while at the same time reducing drag.
- LED position lamps and linear illumination
The new cowl is equipped with LED position lamps, and a new reflective finish is incorporated in the lower edge of the twin headlight assemblies to give an ‘eye line’ illumination effect when the position lamps are on. Together with the newly designed cowl, this linear illumination makes for a dramatic look, especially during night time riding.
Hexagonal silencer tail caps
The latest R1 benefits from new hexagonal silencer tail caps for an even sharper and lightweight look, while new protectors fit tightly around the silencers to give a more compact looking tail.



source: mcn.com

__________________
May the torque be with you..
My first F1 @ Sepang

MG

News Approved

__________________
Join xBhp On



My photography page: Gourab Das Photography

sunny_

OT: @Thread Starter, You own a Busa, right? Were you alongwith 2 R1's, 1 with stock exhaust and the other one with an Akrapovic, riding on the Kol-Delhi NH2, few days back (I guess, in Septmeber) during evening ???

princesirohi

• looks good
• i think a similar thread exists earlier too.
• a linear torque curve does help in improving traction because power flows smoothly without sudden jerks or sags.

__________________


Tyre Sizes _ Spark Plugs

Pirelli & Michelin Tyres for Indian Bikes

Motorcycle Headlight Focus

ASHTAVINAYAK & SHIRDI BIKE TOUR WITH WIFE

R-series

TCS only works while accelarating, while ABS works while braking. So I don't see whats the link between the two. They obviously don't work together. They are completely independant of one another.

If your accelarating too hard the TCS will come into picture when the wheel spins too fast than the bikes movement. while ABS comes in

when wheel spins slower than the bike's movement.

__________________
Just because you haven't seen it doesnt mean its impossible...expect the unexpected.

fireblah

No I do not own a busa. Yes you saw our group at NH-2.
I thought 2012 R1 is same as 2011, but it seems they have done something . would be interesting for new buyers. God knows what linear torque does. What R1 needs is ABS, TCS is okay, but braking on R1 is quite bad with no solid feel.

__________________
May the torque be with you..
My first F1 @ Sepang

Samarth 619

Yes, it was there, since the 2009 model. MCN may have mentioned this to confirm that it still exists.

A linear torque output has torque increasing gradually as the rpm rises. So, the rider usually manages the bike's throttle more confidently, thus increasing grip. Such a bike can be ridden to its limits easier than other "non-linear torque" bikes.

On the other hand, if your torque goes up and down erratically as rpm rises, the rider has to manage the throttle accordingly. And while accelerating, if the rider gets too much torque, he might lose traction (grip).

The article never said it will prevent "skidding". It will prevent "wheelspin".

Let's take a case: You're accelerating your R1 on a road gradually. But your road gets muddy/ watery immediately and your rear tyre doesn't get grip to move the bike forward... So, the rear tyre will spin faster than the speed of the bike and you lose traction/ grip. This is called wheelspin.

Its rare with our Indian bikes but with a P220 you might do a wheelspin. When you accelerate if the surface below suddenly has lesser grip, your tyre might lose grip & slip.

TCS measures the speed of bike compared to the speed of the wheel, and cuts throttle when wheelspin is detected. This happens in microseconds, so its very effective.

sunny_

When are you guys again planning to hit that highway... I'm addicted to the sound it produced I didn't stopped those guys, for photos or chats anything 'cause all I wanted was to listen to that sound when it accelerated and zoooooom and then again I use to catch them in the truck traffic this loop continued few times when they changed their way Scared them away. Tell them not to be afraid, I'm not gonna do that again. I'm a nice human being
Really, R1's brakes are that bad?

Samarth 619

It can't be exactly straight in a Petrol engine as far as I have seen. It is comparatively "straighter" than earlier versions and some other bikes.
Exact straight torque line can be achieved only in electric vehicles, and that too curves down at the end of rpm range.

Actually, it doesn't have to be straight. It should be regular, not twitchy or changing rapidly...
RPM is always on the X-Axis, and Horsepower/ Torque on the Y-Axis on a graph. See this graph for example:



See how torquey Ducati gets from 5500 to 6500 that too immediately? This extra boost means that the rider should control his throttle between this zone... or let TCS do the job.

Anyways, this is all OT, so we might meet on another topic in "General Biking Discussions" or an other section...

sunny_

Ok Samarth, thank you for the info again.