As the titile, I have just put my rothmans nc24 on the road, I brought the bike last sept and spent the winter sorting some jobs, anyways been out riding it and had a couple of fairly big tank slappers after hitting a bump in the road and slighly higher speeds ...maybe it's my way of riding because I also have a new fireblade so maybe I'm expecting too much from a 24 year old 400... i'm guessing there is no aftermarket steering dampers avalible, any one else experience this cheers guys

You shouldn't need a damper on an NC24. I'd suggest your suspension needs looking at and setting up properly. Also check tyre pressures.

I had an NC24 for a while and it does get a bit flexy when tanking on - it is something you'll get used to. It is not a modern beam frame that is for sure.

I found it would tie up when leant over and going over bumps..interesting indeed!

CMSMJ1 wrote:I had an NC24 for a while and it does get a bit flexy when tanking on - it is something you'll get used to. It is not a modern beam frame that is for sure.

I found it would tie up when leant over and going over bumps..interesting indeed!

I never had that issue with mine, not that I noticed anyway. I could easily keep up with mates on their Blades & R1s through the Welsh twisties.

what tyre pressures do you recommend? ive just fitted new bt45's I put 34 front 38 rear just to start off

IIRC, I used to run 32F and 36R on the BT090s on my 24. But then I did always manage to get the tyres pretty warm and sticky

thunderace wrote:IIRC, I used to run 32F and 36R on the BT090s on my 24. But then I did always manage to get the tyres pretty warm and sticky

BT90s?

You mean 45's?

They don't make a 90's anywhere close to the NC24 profile

Neosophist wrote:

thunderace wrote:IIRC, I used to run 32F and 36R on the BT090s on my 24. But then I did always manage to get the tyres pretty warm and sticky

BT90s?

You mean 45's?

They don't make a 90's anywhere close to the NC24 profile

Sorry, front was an 016 (110/90-16), rear was an 090 (150/60-18). Neither were standard size but what was on the bike when I bought it.

Jesus christ.

150/60/18 on a 3.5" rim!

Stock is 130/70/18

Technical it's possible to put on (as per below), but even BS spec a minimum 4" rim for the 090.

140/60*18 3.50/4.00/4.50
140/70*18
150/60*18
150/70*18


4 / 4.5 is the correct.. with the smaller rim the side-walls would be very compressed! Surprised it didn't hit the chain or exhaust either, but i'm guessing it'd be so compressed it'd clear.

Crazy!