So what limits TOP speed ??? - Suzuki GSXS1000 Forum
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post #1 of 21 Old 03-05-2017, 11:25 AM Thread Starter
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Question So what limits TOP speed ???

had the bike flat out twice ...same result 156 @ 11200 or so revs and even with an X-TRE it made no difference.
So i'm wondering what is the limit?

Gearing?
Speedo setpoint?
Revs?

Not overly worried but would love to know
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post #2 of 21 Old 03-05-2017, 11:49 AM
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The ecu flash offers top speed limiter removal and there is a video on youtube showing top speed after ecu flash of gps geniune 165mph . 172mph on the speedo
https://youtu.be/TcgGJRoMJqo

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post #3 of 21 Old 03-05-2017, 12:54 PM Thread Starter
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So looks like its RPM then as he's pulling over 12k...good to know ...thanks
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post #4 of 21 Old 03-05-2017, 09:17 PM
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I can't imagine going that fast on a motorcycle. ONE little thing goes wrong and you're sausage. Good to know it's capable, though.

--Gary

2016 GSX-S1000F, Red/Black
2014 V-Strom 1000
2012 DR650
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post #5 of 21 Old 03-05-2017, 11:54 PM
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Originally Posted by G-Dub View Post
I can't imagine going that fast on a motorcycle. ONE little thing goes wrong and you're sausage. Good to know it's capable, though.
As long as you don't hit anything. You could lay it down and probably walk away from it. Guys on the race track do it all the time. But on the street with cars/obstacles present I would generally agree with you.
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post #6 of 21 Old 03-06-2017, 12:37 AM
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I just changed tires and apparently the stock Dunlops are a smaller diameter than most "premium" replacements. My speedo shows 86 mph at 6000 rpm or 14.33 mph per 1000 rpm. Assuming bike has suds to pull redline in 6th (seems like they do), then at 11750 rpm that would equate to a top speed of 168 mph. I enjoy the gain in handling (Metzeler R01) and increase in range (taller tire=taller gearing for a bit more mileage) more than an increase in top end. Anyway, there are faster bikes out there if that's what one is after, right?

Last edited by rickster; 03-06-2017 at 12:44 AM.
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post #7 of 21 Old 03-06-2017, 08:15 AM
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Garage
The secondary throttles start to close which restricts revs + power at full chat.
ECU flash apparently stops this happening hence the vid showing more revs

Certain people are like slinky's, no apparent use but always bring a smile to your face when you push them down the stairs
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post #8 of 21 Old 03-06-2017, 11:26 PM
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My lack of balls is the only thing that limits the top speed on my bike... :-)
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post #9 of 21 Old 03-06-2017, 11:51 PM
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My lack of balls is the only thing that limits the top speed on my bike... :-)
I prefer to think of it as an awareness of one's mortality.
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--Gary

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post #10 of 21 Old 03-07-2017, 02:10 AM
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I had a different reason when I tried to get the Hayabusa up to the possible 313 kph.
At 200 kph, I said I don't want to die never knowing and at that speed your dead anyway if it goes pair shaped.

Only got to an indicated 250 kph at 7500 rpm. That was enough as even with the full face helmet on the tank and close to the screen as possible; the vacuum behind the helmet caused the helmet to get sucked backwards and the strap was really choking my breathing.

On the Busa, 7500 rpm is nowhere near the power band with 4000 odd to go, but left it too late to wind it on further in 6th gear.
So the moral of the story is go hard early and of course like me only on a 'private' road.

Rob.
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