i hit 130mph

[modlife]

Mine... when the speedo says 80, I'm actually going about 72.  I know that because when I got pulled over for doing 72 my speedo said 80.  10% reduction is normal for most bikes.  TEN PERCENT of 130 is 13mph, you were doing 115-ish!

You're right with most bikes...

Doing the math it actually works out to be a little off for me...but not too much

@ 10800RPM in 5th assuming my tach is close to accurate and adjusting for my 15t sprocket - I would have been going ~115; about 4-5mph under what my speedo read(going that fast I'm sure I was off my a couple mph.
Assuming the same mathematical margin, when I hit 10,000 RPM in 6th(about where it stopped going any faster - I DID get to actually watch the speedo) I would have been doing ~128 actual. That's assuming my tach is pretty spot on.

Here's the math if you're wondering =

--Stock gearing--

top speed 5th gear @11,000RPM 124MPH
top speed 6th gear @11,000RPM 140MPH

add 6.6667% to MAX RPM for 15t sprocket (15/16) = 11733.73

124/11733.37 = x/10800; x=~114.5

140/11733.37 = x/10000; x=~128

[RobTheTyrant]

I don't disagree with your math... I just have a hard time believing the 140 part.  I've had mine, stripped down, faired, larger rear tire, stock rear tire, 15t sprocket and haven't seen more than 130.  I always assumed if I could but I'd never had that kind of space to do it.  The power on a GS falls off like crazy after around 9-9.5 grand anyhow, thus making your 10,000 in 6th part tough for me to swallow.  The tiny bit of power you're producing at that point would take a lifetime to climb much higher in 6th gear.

[modlife]

I don't disagree with your math... I just have a hard time believing the 140 part.  I've had mine, stripped down, faired, larger rear tire, stock rear tire, 15t sprocket and haven't seen more than 130.  I always assumed if I could but I'd never had that kind of space to do it.  The power on a GS falls off like crazy after around 9-9.5 grand anyhow, thus making your 10,000 in 6th part tough for me to swallow.  The tiny bit of power you're producing at that point would take a lifetime to climb much higher in 6th gear.

the 140 is theoretical with stock gearing (23/27; 0.851:1)

I know it can't hit 11,000 RPM in 6th

You're right about the climb from 9-10k RPM too...it took forever. Savannah HWY in Alabama is slightly "rolling" hills too so I'm certain it helps a little. My major point is that with a small rider(I'm 145lb, 5'8", full face helmet) 110 is actually really easy to cross...I guess my ~35sec is actually 0-~114.5 though, not 0-~120

I'm willing to bet that the test riders that put the GS500 at 108-113mph top speed probably did it on a track and weigh considerably more than myself

[frankieG]

i agree that rider weight is a significant factor

[Jlittle]

ok ok, ill take one for the team by doin 130 indecated by the speedo past the police speedtrap and see what they say.

[speeddemon190]

well im 5'-7" and wiegh 115lbs. with -1 in the front, i pass one of those digital speed signs everyday on my way to work, i kept my speedo at 50, and every time the digital said i was doing 45mph  which is roughly 10% off, so if you think about it 130 on the speedo means  i would actually be doing about 113mph. personally i find it hard to believe it would be possible to hit 130 on the gs, and if you did, that would be one really long stretch of highway

[spc]

Those little trailers they set out that show you your speed just blink if your over 120........................

[speeddemon190]

right i know, i was just using that to show my actual speed and what my speedo said. ive never went past one faster than 120. i just kept the speedo at 50 and watched what the little radar screen said i was actually going

[spc]

A cop I know  said that most of the radar based units won't get a good read over 120, but laser will pretty much clock anything man-made that moves.

[ohgood]

So I'm cruising at 87 mph today, in a 35. My carbs are gunked, my valves clackin, my chain is loose. The wind shifted and I hit 88.8 mph and the flux capacitor engaged, next thing I new I was trading in my "Vintage Suzuki Internal Combustion Engined Motorcycle" for a new Toyota Hybrid cold fusion Star Cruiser. You know, with all the chrome. And the teleporter option for the pillion. Guess the dealer was so excited to have 3.5 gallons of the last vintage gasoline in the universe or something.

I realized I left a cake in the oven, had to turn around, and shaZam!, here I am.

But man, there for a nano second I DID HIT 130 ON MY GS DAMMIT !

[speeddemon190]

lol thats great

[GeeP]

A cop I know  said that most of the radar based units won't get a good read over 120, but laser will pretty much clock anything man-made that moves.

My guess is it stops at 120 to keep squids from playing "run up the meter".   

[spc]

Ehhh, when you think about it, that's kinda smart.

[Affschnozel]

Lets just raise the speedo needle , so when it stands still it actually shows 5 mph 

Then you'll be able to say  GS went off the scale 

[sledge]

The law here in the UK states vehicle speedos must not under-read, but can over-read by up to 10% max, assuming the same applies in the US. 130 -10% (13) = 117mph. On a long flat straight road, with a light rider, a bit of tailwind and some needle bounce you might see an indicated 130, but I cant see it actually doing a genuine 130......personaly I wouldnt want to do that sort of speed on a stock GS5.

[RobTheTyrant]

I'm 5'7" and I maybe weigh 145 with ALL my gear and I've never seen more than a 125-ish indicated and I've got some pretty good stretches of flat smooth road to roll down.  I s'pose if you could get it to around 110-120 and then got a little downhill roll it could be possible... however, I'm still skeptical until I see something of the sort.

[Affschnozel]

So, who lives around salt flats ?   

[Toogoofy317]

I wanna know just where in the hell you're doing this "130" in Orlando I-4 has so much construction going on I don't enjoy going the posted 55! And we wonder why our insurance is so high. I'd bet you probably don't have any. And when you wreck It will be us paying more taxes for your dumb azz! Go find a track get the official time we will believe ya.
Mary

[V-John]

Even in my V-Strom forums, it's been said over and over that Suzuki speedos are off. The DL1000 is averaged about 11-12% off. I think the 650 was 8-10%. My speedo is right-on at 55, but at 70 I was reading 77. Still, you were hauling some serious ass!

[coll0412]

Not a fat chance you where doing 130 on a stock bike. I turn into Turn 1 at Brainerd with 9.5K on the tach which is about 120MPH(stock gearing). The straight on Brainard is about a mile long, and I come onto the straight about 70-80MPH and it takes the entire length of the straight to get to 120MPH. Rider weight is not actually that big of a factor, but actually there is a massive amount of wind resistance at that speed. In fact once I got out of a tuck and sat up, I almost got ripped from the handlebars at that speed.