News Approved

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 ???

• 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.

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.

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.

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.

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?

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...

Ok Samarth, thank you for the info again.

@ Sunny: [Quote:a mechanism that helps the car not to lose its trajectory and the steering remains still responsive, even during hard braking.. Commonly seen in luxo cars, latest Indian example is Tata Aria.Quote]


This is known as ESP (Electronic Stability Programme). In a way, it acts like traction control. However, we cannot take it as a TCS for four wheel. It's something different from it.