Max safe highway RPM - Wrist Twisters
 
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post #1 of 13 Old 07-10-2008, 06:00 PM Thread Starter
 
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Max safe highway RPM

I just joined the 919 club with a very clean 04 model bike. I sold my motard because I ride to much highway but love the naked feel.

I love the bike so far and have a 17t front on the way.

I have searched alot on the site and there is a ton of good info here but i have not found what i am looking for.

So what is the max RPM you would run you bike for a 150 mile trip on the interstate and not have any concerns about the engine?

i just did the trip with stock gearing at 5000-5500 RPM.

Thanks in advance!

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post #2 of 13 Old 07-10-2008, 06:09 PM
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i would have no problem running my bike at about 8-9k for 500 miles. well beside the crappy gas mileage. wont hurt motor though

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post #3 of 13 Old 07-10-2008, 06:10 PM
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As long as the engine isn't in the break in period you should be good to go.

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post #4 of 13 Old 07-10-2008, 08:44 PM Thread Starter
 
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I have read everywhere this motor is bulletproof. I guess I will just have to test it!

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post #5 of 13 Old 07-10-2008, 09:20 PM
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I went down one on the front sprocket and ended up on the interstate yesterday and did 120 mile trip home. I was in a hurry to make it to work on time and was averaging 115mph the lowest i saw on the interstate was 95. the high being max speed when i got pissed off at a stupid cage that thought it was fast. I don't remember my exact RPMs but it was well over 6,500 on average id have to guess closer 7,500 RPMs

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post #6 of 13 Old 07-10-2008, 09:58 PM
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Quote:
Originally Posted by zookmor View Post
I went down one on the front sprocket and ended up on the interstate yesterday and did 120 mile trip home. I was in a hurry to make it to work on time and was averaging 115mph the lowest i saw on the interstate was 95. the high being max speed when i got pissed off at a stupid cage that thought it was fast.
Ah, the voice of the reasonable rider.

j-ville-stang:
No need to test it. From the number of blown up 919 motors I've read about on this and several other forums (that's zero, by the way), when they say it's bulletproof you can most certainly believe it, and testing it is more likely to get you into an accident, arrested, or otherwise noticed by all the wrong sorts for all the wrong reasons. In answer to your question my '02 serves as a 105 mile a day commuter with stock gearing and spends much of that time at 5,000 rpm and a little more. From the feedback from the motor I'd say it's yawning at that speed. Just keep the oil changed and stay on top of the general maintenance items and it will last long enough to put in your will, that is if gasoline is still available.

Habitually riding like zookmor claims (and I absloutely believe him) and the odds are within a year the perfectly fine motor will reside in a thoroughly trashed bike. Trust me on this -- I've seen it literally hundreds of times.

Rob

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On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
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post #7 of 13 Old 07-11-2008, 06:58 AM
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redline?

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post #8 of 13 Old 07-11-2008, 07:19 AM
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dirty crime?

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post #9 of 13 Old 07-11-2008, 08:28 AM Thread Starter
 
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thanks for the info. I keep my hard riding on the track or in the trees!

what i ment by testing it was I expect to put a very large number of miles on this bike so we will see how long she will go.

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post #10 of 13 Old 07-11-2008, 09:51 AM
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i'm drag racing mine with one hurt cylinder: known cylinder wall damage, low compression, and maybe more. i'm running an alleged 65-70 shot of wet nitrous, and last weekend i ran my quickest run ever, after 4 years of drag racing this bike. motor's never been touched. 2 consecutive years i drag raced each season on the same oil all year.

i believe the answer to your question is,
"bouncing off the rev limiter"

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post #11 of 13 Old 07-11-2008, 10:13 PM
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BMW says 75% of redline for 12 hours.
If you tried that in La, you'd be dead after the 5th deer, 6th cell phone teen, and 3rd log truck. And that doesn't even count the guy that was drunk driving the riding mower down town.

[
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post #12 of 13 Old 07-12-2008, 03:47 AM
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So the consensus is, no matter what your gearing is, you can still ride well above highway speeds indefinitely with about zero ill effects. Word.

Be safe, and remember when it gets hot outside, more and more cagers will start to get unruly. They start to get hot and uncomfortable, so they drive faster and more erratic. More people trying to save gas by not using AC too, so I think it'll be even worse this year.

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post #13 of 13 Old 07-12-2008, 07:28 PM
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i am with the others, no harm. honda knows the average speed of the interstate system in the united states and would not produce a bike that was uncapable to safely travel at those speeds. nor produce a bike that won't last long doing so. just crank it up and enjoy.

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