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how do you remove speed governor

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31K views 70 replies 35 participants last post by  biffa  
#1 ·
does anyone know how to remove or bypass the speed governor on a 2004 R1? I have topped my bike out numerous times and it is always 186mph exactly, every time. As I approach top speed it feels like the bike looses a bit of power. So I went to the dealership and was advised that all liter class bikes are governed at 300kph (roughly 186 MPH) due to European restrictions. Which really makes the bike comparisons in the magazines totally pointless. However, re-gearing the bike made no change in top speed and before I spend any money in performance mods I need to know if the governor can be by-passed or removed. Thanks for any help.
 
#3 ·
What sucks even more for you is that if the speedometer says 186 mph, your actual speed is likely only 170-175mph...

- BA
 
#4 ·
fireguy911 said:
does anyone know how to remove or bypass the speed governor on a 2004 R1? I have topped my bike out numerous times and it is always 186mph exactly, every time. As I approach top speed it feels like the bike looses a bit of power. So I went to the dealership and was advised that all liter class bikes are governed at 300kph (roughly 186 MPH) due to European restrictions. Which really makes the bike comparisons in the magazines totally pointless. However, re-gearing the bike made no change in top speed and before I spend any money in performance mods I need to know if the governor can be by-passed or removed. Thanks for any help.
:corn

and WELCOME noob!! :beer
 
#5 ·
well, in an article I read (road racing world I think) they verified top speed with radar gun at 184 mph. Not too far off from the indicated speed of 186. I wonder why none of the magazine articles ever mention that all the test bikes were governed at the same speed? A Conspiracy perhaps?
 
#6 ·
Re: Re: how do you remove speed governor

r1-superstar said:
:corn

and WELCOME noob!! :beer
:iamwithst
 
#7 ·
I can see even more flames coming....... hell it's hot already :2bitchsla
 
#10 ·
fireguy911 said:
well, in an article I read (road racing world I think) they verified top speed with radar gun at 184 mph. Not too far off from the indicated speed of 186. I wonder why none of the magazine articles ever mention that all the test bikes were governed at the same speed? A Conspiracy perhaps?
Back in 2000, all four Japanese Sportbike manufacturers settled on what is called the "Gentlemen's Agreement." No one will produce a stock OEM Motorcycle that will exceed 186mph.
 
#11 ·
unofficial high-speed moratorium put into effect in 2000 with a lid of 300kph/186mph rumored to be the "gentlemen's agreement" among the major bike manufacturers (much like the 155mph top speed limit agreed upon by most European car makers).
 
#12 ·
:boom
 

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#13 ·
I had mine removed here in Reno. I did not do it so I'm not sure. Dyno stated top speed of 218.8 but I have not had it on the street. Cold and snow has stopped me. List of mod's below (I think)
 
#15 ·
fireguy911 said:
well, in an article I read (road racing world I think) they verified top speed with radar gun at 184 mph. Not too far off from the indicated speed of 186. I wonder why none of the magazine articles ever mention that all the test bikes were governed at the same speed? A Conspiracy perhaps?
No conspiracy :2bitchsla Your speedo will only go up too 186 so will the ZX-10 and CBR1000. Now your speedo is off by about 15%. So you think your going 186 but like someone else said it's more like 170-175 MPH. The tests they did in some of the mags are correct. They did the top speed test with radar. Just because your speedo says 186 it doesn't mean your still not accelerating.
Why is 180 MPH plus not enough for you??!!
 
#16 ·
YamahaR1Av8r said:
I had mine removed here in Reno. I did not do it so I'm not sure. Dyno stated top speed of 218.8 but I have not had it on the street. Cold and snow has stopped me. List of mod's below (I think)
r1-superstar said:
:bs :corn
Could this be a possible top speed with no wind resistance on a dyno?
 
#18 ·
Bluepelican31 said:
Could this be a possible top speed with no wind resistance on a dyno?
Yes.


Just get yourself a Yellow Box and calibrate your speedo properly. Your bike isn't going to go over 186 mph anyway, but your speedo is optimistic, like people have said, so when you're at 186, you're not really going that fast. The Yellow Box will fix that.
 
#19 ·
YamahaR1Av8r said:
I had mine removed here in Reno. I did not do it so I'm not sure. Dyno stated top speed of 218.8 but I have not had it on the street. Cold and snow has stopped me. List of mod's below (I think)

:lol They must be brother's :lol


Do a search and then come back and flame yourself! lmao......
 
#20 ·
r1-superstar said:
Back in 2000, all four Japanese Sportbike manufacturers settled on what is called the "Gentlemen's Agreement." No one will produce a stock OEM Motorcycle that will exceed 186mph.
To my knowledge Triumph did not sign that agreement. At this
time they are working on a prototype sportbike that will exceed
the 186mph mark. When that bike comes out I'd look for the
others to follow agreement or not.
 
#22 ·
r1-superstar said:
Triumph is not made in Japan.:2bitchsla
True, but recently someone posted a link to the new honda, that will reportedly smoke a busa and a zx12, the article said that it's top speed will be in excess of 200mph.

Their used to be the a similar agreement with PWC, however the manufactures kept going edging a little closer the the line, then slightly over the line, until finally Kawi blew it out of the water. Since then the other manufactures have followed suit.
 
#23 · (Edited)
To make a bike that tops out at.......say........150 MPH go 180 MPH, you can do some relative mods to achieve this.

Take a bike that tops out at 175 - 180 MPH, to get it to go 200 MPH is a hell of a lot more work.

The window of performance increase is exponential above 175 MPH.

The 200 MPH mark is alot harder to get to because of the brick-wall effect a motorcycle has. Its basically an aerodynamic disaster. Sure, our bikes may look sleek and slippery, but in all truth, they are not as aerodynamically efficient as many think.

Quite a few years back Cycle World, or one of the other US magazines took a 1986 Honda VFR750(bone stock), ran it on the salt flats all day long and could only get about 158 MPH or so.

They then took a shell of an airplane motor(basically a big cone), and fit it around the bike. No other mods to the bike, and it ran 180+ I believe. I may be a little off on the actual MPH amounts, but you get the picture.

The 200 MPH mark is quite a golden goal for many to reach.
 
#24 ·
hooligan_r1 said:
To make a bike that tops out at.......say........150 MPH go 180 MPH, you can do some relative mods to achieve this.

Take a bike that tops out at 175 - 180 MPH, to get it to go 200 MPH is a hell of a lot more work.

The window of performance increase is exponential above 175 MPH.

The 200 MPH mark is alot harder to get to because of the brick-wall effect a motorcycle has. Its basically an aerodynamic disaster. Sure, our bikes may look sleek and slippery, but in all truth, they are not as aerodynamically efficient as many think.

Quite a few years back Cycle World, or one of the other US magazines took a 1986 Honda VFR750(bone stock), ran it on the salt flats all day long and could only get about 158 MPH or so.

Thay then took a shell of an airplane motor(basically a big cone), and fit it around the bike. No other mods to the bike, and it ran 180+ I believe. I may be a little off on the actual MPH amounts, but you get the picture.

The 200 MPH mark is quite a golden goal for many to reach.

I never heard the salt flat story, but I have heard that aerodynamics play a huge roll in the 200 mph bubble. I know I read a car article where they had to tape every vent and opening shut to get a mustang to top out with other sports cars a few years back for a top speed comparo.
 
#26 ·
No multiple page thread about motorcycle's top speed is complete without mentioning the mighty busa every post
or 2.