Nsr Speeds ???

Steve.S · L Plate Warrior Joined: 04 Mar 2002 Karma :

Be nice to hit the red line,mine doesnt even reach it. 85 @ 9000 rpm
is the best i can hope for down hill.

NS125R 91 Supersport old single headlight one

Steve

Hunter · Nitrous Nuisance Joined: 01 Mar 2002 Karma :

I have the same bike as Annabella and it zooms! I have hit a max. of 95+ mph and it seems to want to go even faster I could chek out the top speed cause its not stable. The RK really moves.

Oh.. I have a 13 toothed sprocket at the front and the same as you guys on the back I think.

Oh and BTW, does anyone know why the bike loses power on the lower revs and misses like crazy when cold? I have noticed this lately and didn't have much time to mess with it!

Any help would be greatly appreciated! Cheers!

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

Annabella, were you hitting the red line at 97mph???? And do u know how many teeth are on your front sroket??? OMG, a lady with a better bike than me Embarassed

!!! (only joking). Did you have to de restict yours??? Any one elese know if theres any restictions on the rk?? I have only got bout 90mph, but that is an import speedo with one of those mechanical converters on the back.
Thanks
Dylan

craigT19 · Jolly Green Giant Joined: 09 Feb 2002 Karma :

at 97 mph on my 2001 nsr im reving at a little over 10grand
____________________
Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
Crying or Very sad

BCF member pops. sadly missed Crying or Very sad

1945-2003

Annabella · Like a person, only smaller Joined: 03 Feb 2002 Karma :

To be honest - I DON:T KNOW!!! It just does it. However, I've put an original exaust on which I scrounged off a breakers (cos my fairing wouldn't fit over the bodge I had on before) and today I could only get 85 out of it at about 10, it just would not red line in fourth..... Crying or Very sad

I dunno - racked off now. But it has cured the coughing problem It used to splutter at about 5.5 - 6 grand of revs like it was gonna die, then the power band would cut in and it would shoot. Doesn't do that anymore, so while i've lost top end it accelerates quicker...Hmmmm decisions decisions (might have to invest ina decent exhaust system)

craigT19 · Jolly Green Giant Joined: 09 Feb 2002 Karma :

lol annabella what system did you have on b4???
____________________
Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
Crying or Very sad

BCF member pops. sadly missed Crying or Very sad

1945-2003

Annabella · Like a person, only smaller Joined: 03 Feb 2002 Karma :

On the exhuast?
It was......A dented expansion chamber far too big fot the bike from....dun't know what,
A half chopped can off an Aprilia welded on the back of what looked like a bit of plumbing....

Wey hey!!! "at the end of the day, it ain't rocket science" as my boss is continually saying

hopoffbaby · Spanner Monkey Joined: 16 Mar 2002 Karma :

Back to the subject of speed
i see that everyone is saying the imports can only do 85mph. in theroy couldnt you just put big front sprockets and small rear sprockets and do like 130mph but have the bike accelerate slow??

TiN · Pocket Tin Joined: 14 Feb 2002 Karma :

Well, according to that the last post in this topic: https://www.bikechatforums.com/viewtopic.php?t=10065, the import NSRs have "a 22 bhp cylinder, compared with 28-30bhp on a UK bike..."

I personally can't comment on that, but it seems logical...?

Tin

Guest · Posted: 09:23 - 14 Apr 2002 Post subject: Top Speed

hello, I am from Portugal and my friend has a nsr 125, I already ride it and the maximum speed is.....112 M/H in flat. I invite all the ones that not believe to come to Portugal see with the own eyes. For next week I will also buy one. Very Happy

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

hopoffbaby · Spanner Monkey Joined: 16 Mar 2002 Karma :

well if a nsr125 uk does 100 with standard sprockets 0 -60 in 5 seconds and 110 with one more tooth 0-60 in 6 seconds and a restricted does 75 0-60 in 11seconds (acording to nsr125.com) then shurley there is still al lot of power left in the nsr engne (uk one i mean now) so i think it should be able to do around 120 -125 witha 0 - 60 of 11 seconds derestricted if u have large enough sprockets??
just my thoughts im proberly compleatly wrong but it sounds logical!

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

Annabella, unfortunately exhausts are rocket science, its all about inverted pressure waves sucking out the old gases. Think i might go for the jolly moto, obviousely the original exhaust is crap if a dented one works better!!!
Dyl

Dan · Brolly Dolly Joined: 04 Feb 2002 Karma :

Guest · Posted: 01:58 - 15 Apr 2002 Post subject:

I HAVE A 2001 NSR AND A BIG BORE KIT, ENGINE MODS, K/N AND A ARROW EXAUST AND CHANGEG FRONT SPROKET TO 13 AND THE BACK TO 38, TOP SPEED IS 115 MPH, IM 8 STONE AND WITH MY GIRL FRIEND ON IT PULLS 107, I GOT IT DYNOED AND 33.7 BHP, AND EVERY BIT OF ALULIMIUM POLISHED, AND WITH A PASSANGER ON IT WHIP A NSR AND A MITO, RS APRILLA JUST ABOUT

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

eah, but its not a 125!!! Dufus

hopoffbaby · Spanner Monkey Joined: 16 Mar 2002 Karma :

Stevo · Guest

Just out of interest has anyone tried a big bore kit on an NSR125? what cc is the cylinder kit for the latest NSR? I have heard that the Polini 165 kit works well on the Cagiva Mito, and that there are some that do between 110-115mph true speed.