STAYS AT 130MPH

[djembe22]

call me foolish but i had to find out if my 2002 R1150R would make the 150mph as indicated on the speedometer, it got to 130mph and no further.anyone knows why i can't get those extra
20 mph,,,by the way my experiment was done at a race track.

[Airman]

call me foolish but i had to find out if my 2002 R1150R would make the 150mph as indicated on the speedometer, it got to 130mph and no further.anyone knows why i can't get those extra
20 mph,,,by the way my experiment was done at a race track.

I think you did real well to get 130. I don't think mine would, and from what I read from others, 125 as indicated on the GPS is about it. I think the R1100S might make 150 as there's the fairing and more horsepower, but not the RR.

[NoRRmad]

Yeh, that 130 indicated is probably about 117 after correcting for speedometer error.

[Trout]

...anyone knows why i can't get those extra 20 mph

Sure. It's simple math. Top speed is a function of drag coefficient and horsepower and some other numbers. As the speed increases, the horsepower required to overcome the drag increases exponentially.

The drag coefficient on your naked R is way too high for the available horsepower. 120-130 is all she'll do.

[The Velvet Monkey]

...anyone knows why i can't get those extra 20 mph

Sure. It's simple math. Top speed is a function of drag coefficient and horsepower and some other numbers. As the speed increases, the horsepower required to overcome the drag increases exponentially.

The drag coefficient on your naked R is way too high for the available horsepower. 120-130 is all she'll do.

One of those other numbers is, no doubt, weight. There's no way that my R is going to haul my 300 pound ass to 130. I have had it up to 110-115, though, with room to go. I'll have to put my 120 pound wife on it to see its true potential.

[Dr. Strangelove]

Yeh, that 130 indicated is probably about 117 after correcting for speedometer error.

I had mine up to 130 on speedo, but 122 or gps.

There was room on the throttle for more, and I didn't look to see my rpms--how close I was to redline.
John

[Biff's R]

It is all aerodynamics, and HP. But aero is our main limiting factor. Weight doesn't make that big of deal compared to the aerodynamics of your body. Wide body means more drag.

[towerworker]

Bald guys go faster then those with a full head of hair. Better aerodynamics---less wind drag.

Wayne


And of course I represent the above axiom.

[riceburner]

ALL speedos are printed up to a larger number than the bike can achieve to prevent too much error creeping in.

it is EXTREMELY hard to get a speedo "off the end of the scale", without major mods to the bike.









That said - I've done it.
CBR400RRSP (Gull Arm BabyBlade - my mum's bike), we put a gearbox in the speedo drive to convert it to show miles instead of kilometres (it's a jap market import) and I once got if off the end of the scale. Double impressive given that the bike is standard and it was carrying all my bike tools in a set of panniers!!

[nonskid]

The only way you're going to get it to 150 mph is to go to your local airport, load the bike in a plane, climb to 5000 ft., open the door and SHOVE IT OUT!!! It should reach the 150 mph mark quite quickly. I wish manufacturers would use speedometers that didn't have unrealistic high MPH readings. My Miata speedo goes to 150 too, but I haven't found a plane big enough to see if it would really go that fast.