BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

I'm 220, WFO I hit 125 speedo, 127 GPS, trying to keep up with a 'Busa and 2 CBR's

I kept them in sight.....

Comming back from the rally in lima on my "04" 1150r with city cases i hit 130+ indicated, i could not reach redline in 6th. That's with a cat-back exhaust system, k&n filter, eprom chip and high flow intake snorkle, stock it topped out at 115 without cases, i weigh about 185#.

96 mph on second gear with the "nitrous" on, I had to shut down, a police car was coming in the opposite direction.

96 mph on second gear with the "nitrous" on

Hey boxer! How's the bike running with the airbox removed and the larger fuel injectors? I saw the pics you posted when you started the project but haven't heard anything more about it, as a shade tree mechanic and constant tinkerer i'd be interested to know. By the way what exactly do you mean by "nitrous".

I think he's kidding ya... Nitrous stands for Nitrous oxide injection, instant HP from a bottle. 96 in second seems a bit much ...

BTW trick bike bro!

CH Racing M900 wrote:96 in second seeems a big much ...

Yeah, I think gearing and redline wouldn't let that happen!


But it sounded good.

I rarely if ever venture above 100mph as I'm not that comfy with high speed, plus its an instant ban here!

But my bike was playing up at WOT which turned out to be a coil/plug cap. I gave ita good blast to see if it would now pull some high revs in top gear? It did, I managed just on or just under, I wasn't taking my eyes of f teorad for too long, 130mph.

Probably never head up that way again though.

Mine '04, non-ABS, with just me on it (fully geared up at 220 lbs, about 6'4" with boots and helmet height counted, 6' even without), no other add-ons (no windscreen, no exhaust, no this, no that, no baggage other than a very small mag-tank-bag).

In other words, TOTALLY STOCK, about 2000 miles, decked out rider (specs above), and maybe 1/2 tank of gas.

I wanted to do one top speed test on it before I made any mods, so I did the following:

On the NJ TPK (I95), on a flat and level stretch on a Southern part of the highway where I know that there is a 4 mile run with no speed-trap potential, I pinned it and I couldn't get it past the mid 120's on the speedometer. There was almost no wind that day, and the ambient temperature was around 68F. I had the throttle pinned in 6th gear, was laying as flat as that tank would allow. I rode full throttle like that in 6th for about 60 seconds once I got up to that speed (I timed it on my watch), and during that time I made frequent glances at the speedometer and it fluctuated a bit in the mid 120's, with 124 seeming to be the most common, but it wouldn't seem to go any higher even though there were some RPM's left before redline on the tachy. The rev-limiter never kicked in. After a full minute of that and 2 miles past, I was running out of runway so I had to back down.

I'm pretty confident that my test results under those controlled conditions represent the stock capabilities of that bike.

I'm sure that a full system exhaust, selective weight reductions in addition (i.e., center stand), aerodynamic components, and a few other small things such as air filters, etc..., would allow the bike to hit the 6th gear redline which is probably actually in the 120's, as my 120's reading was based on the tach (not GPS) and therefore is probably about 8% high due to manufacturer's built-in error.

R4R&R wrote:

CH Racing M900 wrote:96 in second seeems a big much ...

Yeah, I think gearing and redline wouldn't let that happen!


But it sounded good.

I wound my bike up in 2nd today.... 70mph equates to the beginning of the redline - around 7,500 revs. To get 96 you'd have to be doing around 9K revs - so assuming the limiter allows this in 2nd - it might be possible.

I sometimes like to pull crank yankers on the posts, this being one.

96 in second gear, irregardles of "nitrous", is a physical imposibility. The bike is not geared to attain that speed as R4R&R so noted, the cam will not "breathe" at the required rpms and the engine will not take the rpms either.

Nitrous is "laughing gas" and liberates additional oxygen that will ghenerate additional HP if fuel is also added. Nitrous alone will hand granade the engine.........all the nitrous in the world will not help any of the obstacles addressed in the paragraph above.

BMW's will normally see an indicated 120+ to 130+....irregardless of what the literature says top speed is........on a fairly long straight and with the tune in top shape one might see a true 125 mph and not more, an extremely light rider tucked in might see an additional 5 mph.

In either case there isn't enough horsepower in 6th gear to hit the rev limiter.....if my memory serves me right, max attainable rpm at WOT should be between 5750 and 6500 once again depending on weight of rider and state of tune.

BTW....system cases act as winglets and their drag will knock some top end off. Did I redeem myself ?????

My turn:

I weigh 250+ lb.s with my gear on. I sit lower in the seat because I'm 5' 2" and had a lowered seat, I always ran my System Cases with either full size lids or City lids, I also had a little home-made top pack, and I trimmed the top off the windshield of my Givi A750 fairing. In addition, I ALWAYS carried lotsa weight in my bags and top pack, not to forget the additional weight of my ABS unit.

Top Speed?
I saw an indicated 143 mph with a VERY high wind behind me. Fortunately, I beat the storm to the shelter of my garage, as it was hot on my heels all the way home!

Our American bikes with it's taller 6th gear ratio, will top out reliably at a REAL 121 mph. The speedo will indicate somewhere between 129 & 132 though, as they are traditionally off by about 7%.

There was a small group of us on our R1150's converging onto Hollister from different directions a couple years ago. We all ran a variety of pipes, cat' eliminators, factory set-up, cat' code plugs (or none), cases, windshields/fairings/naked, etc. A couple of guys had GPS, Ed had a Sigma bicycle speedometer/computer on his bike, and one gentleman on his RT with GPS confirmed our findings.

Bottom line,
it didn't seem to matter if you crouched behind a fairing, sat up on a naked bike, ran with City or Standard lids on your cases, or even if you were a fat-phuck or pheather-weight........ we all topped out at 121 mph. On the other hand, I wonder what the elevation is out there in the desert around Mono Lake & Hollister?

Okay since I started it I figured I'd probably chime in with the last comment on top speed. A couple of days ago while coming home on Route 11 (real long 65mph staright highway) I cranked Chugger . I can tell you the conditions were almost perfect for a high speed run. No wind, slightly overcast and a little cooler. No weight in bags just me. Only mistake is that I left the GPS home. So what I'm about to tell you take it for what its worth catagorey on the speedo; the Rockster hit 132mph in 6th gear at 7,000 RPM's. I could not... I repeat could not tach into the redline at 7500 thus top speed 132mph would would be as Pat noted probably 121mph. NOw before everyone hips and hollars hurray I just want everyone to know that my friends R 1100GS ran by me on top end. Once I maxed my bike at 7,000 rpm in 6th I had no where to go and he really went by me. That sucks! I also put Chugger to the top end test and was POUNDED by a K 1100 LT. Now I know they really run well but geez I really am thinking about changing gear ratio or entire rear end. My Rock gets there pretty quick but it's the "there" top end result that is the problem. Maybe I can find a 350 Honda that I can stay with on top end? By the way the Rockster runs as good as any Rockster out there and I have road racing experience so it probably isn't the driver either. As Pat said thats just the way they are.

wardione.....verry intrresting!!!!

There are a couple of things I know.......

1) If you got to 7K and 132 indicated you were in that road for a long time, on a stock bike anything past 120 indicated in 6th gear comes past as the flow of molasses.....very slowly.

2) A 1100GS flew past you, was he going in the opposite direction? I'm not saying it didn't happen but is hard to swallow, the same with the LT, they run in the 112 mph range.....with all thaty weight and frontal area, that in itself is exceptional.

I want an ST like Deano. At Torrey he blew by me when I had WOT and an indicated 125 mph for a few miles. I bet his ST does 145.

The max speed i got on my rockster was 221 Km which is about 146 mph.

Have in mind that I have installed a K&N air Filter and a Laser Exaust with its Chip.

I was wearing my leather uniform and i was really hidding behind the tank

I am 25 years old i weight 70 KG and fear is not a factor for me

Anonymous wrote:i hit redline in 6th gear....im 180 lbs, layed out on the bike. 140 ish then.

Wow! You lost about 40 pounds while redlining the Rock?

OK, on good days, I weigh in between 145 and 150 stark nekkid. Under 5'6" in same bday suit. After reading the results from many of the 200+ pound riders, I'm a bit curious.

Alas, every attempt I kept getting pulled over.

221 km/hr is more like 137 Mph.....(100km/hr is 62.5 MPH, more or less) I started riding when speeds here were still under the Imperial system, and still have a bike with MPH's on the speedo

Boxermania, I was on that straightaway for about a mile and I couldn't get into the redline on top gear. Second you can bet the K1100LT will run by us on top end. Their top speed is at least 10-15 miles per hour greater than ours. Don't forget that is a touring geared bike, the Rockster has different gears for better acceleration at a small loss on top end. Yes I was surprised and disappointed my friends R 1100 GS did in fact get by me once I was around 110mph. It's probably the rear end gear. Now I walked away from him at 65mph up the 11omph. Once over 100mph he started creaping up. My other friend has a pristine K1100RS and I can tell you its a 140 (true) top end bike and I have zero change of staying with him. I am feeling about as bad as anyone about getting crushed on top end but it isn't me the dang Rockster just doesn't have the gearing to reach higher top speeds. Maybe CycleRob can shed some light on the differences in gearing.

I've consistently hit 134-135 stock bike. I weigh in at 230.