General SBK Discussion Thread

[nitrosatya]

but buddy you forget....the cbr600rr is also an inline 4...

Yes, i know.600s are screamers. Twins and inlines do emit very low bass.IMO bigger the explosion, deeper the bass.

low or high frequency?
i think the engine generates high frequency and the cans generate low frequency waves.
fell free to correct me if im wrong

Actually the engine with the cans will generate a sound comprising of a frequency range. Say from 20hz to 20khz. I think the output will change with respect to change in company.

And i think Kawasaki Ninjas sound the best!

[harshaguduru]

Yes, i know.600s are screamers. Twins and inlines do emit very low bass.IMO bigger the explosion, deeper the bass.



Actually the engine with the cans will generate a sound comprising of a frequency range. Say from 20hz to 20khz. I think the output will change with respect to change in company.

And i think Kawasaki Ninjas sound the best!

animal dont react to separately to 20-20000hz as it the human frequency
dogs are known to respond to ultrasonic as well as sonic waves.
i think the dog whistles used by trainers are >18000Hz
20hz is the tone of deep booming bass..
i really wonder if cans alone can go upto 20000hz because that is more like a shrill whistling sound?

[nitrosatya]

Yes certainly. I think the animals respond to sound below certain frequency.

[dextr]

Its a good thing that litre class superbikes are now available in India,though at a high price.But with these bikes comes the question of spares.Are the spares properly available in India??? Maybe the company will provide servicing and spares and all..Also some bikes are there which were imported before and can be bought second hand.What 'bout their spares??? Will Honda or Yamaha care for a bike that was imported and/or provide necessary spare parts or they just care for those bikes only which now they are selling?? In that case what are the other ways in which the bike can be maintained. I'm asking all these 'coz i wanna buy a Yamaha R1.But I am just worried 'bout servicing and spare parts...

[stewarch]

Its a good thing that litre class superbikes are now available in India,though at a high price.But with these bikes comes the question of spares.Are the spares properly available in India??? Maybe the company will provide servicing and spares and all..Also some bikes are there which were imported before and can be bought second hand.What 'bout their spares??? Will Honda or Yamaha care for a bike that was imported and/or provide necessary spare parts or they just care for those bikes only which now they are selling?? In that case what are the other ways in which the bike can be maintained. I'm asking all these 'coz i wanna buy a Yamaha R1.But I am just worried 'bout servicing and spare parts...

My experience with Yamaha in Mumbai to date is 'they will not service or even sell parts for grey imports'.

[dextr]

okay.. so can I get the spare parts and technicians if I buy a second hand imported superbike not from the showroom??say in Mumbai for example.Or is it just buy it fry it and then forget it.It is not like all the imported bikes are illegal.I think its a very important question.The question arises 'coz a second hand bike of '05 or ,06 model comes cheaper than those at the showroom and the difference is a LOT.
Only recently Yamaha,Honda and Suzuki started selling their superbikes in India.But there are many ppl here in xbhp who own such bikes from beforehand.I think they may have some answer for this.

[stewarch]

okay.. so can I get the spare parts and technicians if I buy a second hand imported superbike not from the showroom??say in Mumbai for example.Or is it just buy it fry it and then forget it.It is not like all the imported bikes are illegal.I think its a very important question.The question arises 'coz a second hand bike of '05 or ,06 model comes cheaper than those at the showroom and the difference is a LOT.
Only recently Yamaha,Honda and Suzuki started selling their superbikes in India.But there are many ppl here in xbhp who own such bikes from beforehand.I think they may have some answer for this.

My experierence is still NO. If the bike was not purchased thru Yamaha then they will not supply. I have R1 and have found no problems sourcing spares or even mechanics willing to work on the bike.

[dextr]

thnx.. thats all i wanted to know..whether alternative sources of spares and technicians are available or not ,apart from those in the showroom's workshops ..now i think i may go ahead with my plan of buying that second hand R1 I'm being offered...

[frank_dude_007]

i have a question , if i have relatives in america and they r willing to help me import a superbike , then how do i use there help in the best possible way i.e. how can i get the bike legally and somewhat cheaply(in terms of money only) imported ?

[kriss]

i have a question , if i have relatives in america and they r willing to help me import a superbike , then how do i use there help in the best possible way i.e. how can i get the bike legally and somewhat cheaply(in terms of money only) imported ?

Forget about it... I mean stay far away from that kinda thought.

[csgup1]

I think its more the fact that it displaces the grease that is packed with the orings in a new chain. it dosent change the shape but may affec chain life due to the low lubrication.

Its what people and some mechanics say in aus so im not a 100 percent sure. either way kerosene is cheaper anyway.

[frank_dude_007]

Forget about it... I mean stay far away from that kinda thought.

I wanted to know this because i was interested in Suzuki gsxr which is not legally sold here......

[wizv]

LITRE BIKE SHOOTOUT


Engine
Power, tractability, response, user friendliness
(Given the importance of this category, it’s double-weighted)
GSX-R1000 – 95%
ZX-10R – 91.25
CBR1000RR – 90
YZF-R1 – 87.5
We were expecting Yamaha’s new cross-plane crankshaft design to offer significant benefits in this critical category, but not all our testers were blown away by it. “I can’t say I really felt any difference from the cross-plane crank on the street, although I can hear what people like about the exhaust note,” said journalist/author Mark Gardiner after a ride.



On the other hand, Steve “Speed” Kelly believes the cross-plane engine enhances corner-exit speeds on the track. “All that hype about there being a connection between the throttle and the rear tire is true. If you want to able to spin up the rear tire exiting a corner, having the bike sliding around while you keep the gas pinned, no other literbike I've ridden before made this so easy. The grip and drive the R1 gives somehow allows you to just keep opening the throttle when on other bikes you'd be backing off for fear of highsiding yourself.”

Indeed, this is a much more pleasing engine than its former peaky powerplant, and its V4-like growl entices even elderly kids to twist the throttle to hear it rev. It’s an audio treat for ears that have grown accustomed to the familiar shriek of a typical four-cylinder motor. The cross-plane crank design results in odd vibrations for an inline-Four, delivering rough vibes at lower revs before magically smoothing out at higher rpm via a counterbalancer. It’s another sensation unique to the R1.
But, as we suspected at the Yamaha’s intro, this new motor is lacking a bit of the old bike’s revvy surge up top, peaking with just 146.1 hp at 11,800 rpm. This is the lowest output of all the literbikes, even less that the Ducati’s 150.4 hp, and it’s down from 2008’s 153.5 hp. Max torque is down incrementally to 73.1 ft-lbs at a relatively low 9000 rpm.
Overall, this is a very interesting and satisfying engine, but there’s no escaping the fact that it’s down about 10 ponies from the most powerful engines in this group. The R1’s missing top-end pull became evident when the bike was unable to make up ground on the V-Twin Duc down Willow’s front straight. While this speaks volumes about the 1198’s bodacious V-Twin, it also writes a less impressive chapter in the R1’s story.




At the other end of the spectrum is the mega-motored Kawasaki ZX-10R. It rules the roost with 155.9 hp, vigorously inhaling any straightaway in its trajectory. When twisting the Ninja’s throttle hard, you’d best be pointed in the direction you want to go, as you’ll be there in a nanosecond, especially if you keep the heavy-hitting mill spun up to exploit its 12,200-rpm horsepower peak.
As with all these bikes, electronic fuel injection assures prompt cold starts and mostly seamless acceleration. Throttle response from the ZX is immediate and incredible – newbs beware! – but power production is surprisingly soft in the midrange zone. The 10R’s mill has a stimulating rumpity vibration at low rpm, but it smoothes out nicely at cruising speeds.

Challenging the Ninja for the biggest dyno numbers is the all-new engine in the Gixxer Thou. It spat out 155.2 hp at its 11,700-rpm peak, and it pulls though the powerband in an impressively linear fashion. Torque production is second (third if you count the Duc) only to the amazingly strong CBR, and a GSX-R rider always has a deep reserve of power on tap.
On the track, the Gixxer feels noticeably stronger than all but the potent Ninja, and its throttle response also proves to be very manageable on the street. As usual, we barely experimented with Suzuki’s Drive Mode Selector, preferring to keep it in its full-power A setting. The Gixxer mill’s only shortcoming is some rough vibes coming through the frame at various revs, becoming obtrusive above 85 mph when the motor is spinning around 6000 rpm in top gear. Keep the speeds down to a more reasonable 75 mph and it’s smooth enough for a day-long sport-tour ride.
The CBR’s engine doesn’t post the biggest horsepower numbers, and it’s missing some fancy technology (engine-mapping adjustability, cross-plane crank, variable-length intakes) fitted to some others, but this is perhaps the best street engine of the group. Its midrange pull is simply outstanding, with major-league grunt available earlier than any other literbike. Its torque peak of 76.6 ft-lbs is not only the highest of the Fours, it also boasts a twist advantage over a 5000-rpm range



The double-R engine's only hiccup is a leisurely response at low revs, perhaps tuned that way to minimize harsh throttle reaction when tooling around town. Power peters out above 11,000 rpm, so there’s little sense in wringing it out to its 13,300-rpm redline, but this powerplant is nevertheless extraordinarily effective.

[fireblah]

In every street comparison I see the cross plane crank shaft at bottom...
Also 1000RR is no3 in engines... But as the article says, it has amazing pull in mid revs... which i simply love about it....
But again .. havent ridden any other superbike so cant compare .... Just happy to see 1000RR as among the best....

[wizv]

Transmission/Clutch
Clutch actuation, slipper, shift ease, precision
Riding Man