my bad.. should have been more specific..

HONDA CBR400F / ??????? 400 TL 100/90-16 54H 2.50 110/90-18 61H 2.75

HONDA CBR400F F3 400 TL 100/90-16 54H 2.15 110/90-17 60H 2.50

HONDA CBR400R (86-87) 400 TL 100/80-17 52H 2.50 130/70-18 63H 3.00

HONDA CBR400RR (88-89) 400 TL 120/60R17 55H 3.50 150/60R18 67H 4.50

HONDA CBR400RR (90-93) 400 TL 120/60R17 55H 3.50 150/60R17 66H 4.50

HONDA CBR400RR (94-) 400 TL 120/60R17 55H 3.50 150/60R17 66H 4.50

this was found on the link above..

Again, what has a CBR400 tyre profile got to do with an NC24?

i bought my NC24 in April and i came with a nearly new 150 profile tyre. seems to hadle fine to me but then this is my first big bike. how much of a noticeble difference would the correct 130 tyre make to handling? wanna get use out of the bridgestone ive got on but if its gonna handle way better then will put 130 on in the summer

Cheers dave

viper_biker wrote:Again, what has a CBR400 tyre profile got to do with an NC24?

I thought the nc24 was a cbr400? my bad its a vfr.. doh

only trying to help out..

dave_c24 wrote:i bought my NC24 in April and i came with a nearly new 150 profile tyre. seems to hadle fine to me but then this is my first big bike. how much of a noticeble difference would the correct 130 tyre make to handling? wanna get use out of the bridgestone ive got on but if its gonna handle way better then will put 130 on in the summer

Cheers dave

Which bridgestone, the only 150's i know of are BT90/92/14?

In 130's your going to be limited to BT39's/45

Although not technically as good for street racing as the choice of rubber available in 150 I think its more than adequate for the bike, all I can suggest if that you give it a go. You might find it strange at first either way.

Theres many partworn 130/70/18 BT45's on ebay at the moment for £20 / £30 quid. I'd pick one of these up and use whats left in it, save paying over double for a new tyre you might not like.

Personally I find it better with a 130/70 than a 150/60. I found 140's awful. Leans to the pegs without problem and is fairly comfy, not too bad in the wet either.

Which bridgestone, the only 150's i know of are BT90/92/14?

In 130's your going to be limited to BT39's/45

Although not technically as good for street racing as the choice of rubber available in 150 I think its more than adequate for the bike, all I can suggest if that you give it a go. You might find it strange at first either way.

Theres many partworn 130/70/18 BT45's on ebay at the moment for £20 / £30 quid. I'd pick one of these up and use whats left in it, save paying over double for a new tyre you might not like.

Personally I find it better with a 130/70 than a 150/60. I found 140's awful. Leans to the pegs without problem and is fairly comfy, not too bad in the wet either.[/quote]

i will have look at the tyre and let you know.its the same tyre thats on my mates nc30.


the ebay tyre idea sounds good. mite give it a go,are many tyre fitters willing to fit partworn tyres though?

[quote="Neosophist
Which bridgestone, the only 150's i know of are BT90/92/14?

[/quote]

my bridgestone is a battleaxe bt92r 150/60/18 ium pretty sure its the tyre fitted to the nc30s. was told the other day that it should be removed as it was to wide for the rim, is this right? wanna get my use out of it only done 4000k on it
cheers dave

150 is technically possible to fit on a 3.5 rim (obv as its on there) although it may deform a little, it's certainly wider than the Honda recommended.

Most tyre fitters will do a change over for you, for around £5-£10 usually, give a call around.

The BT92 is a tyre of radial construction, which is 'newer' and generally considered superior type of tyre to the choices available in 130 (BT45/BT39) which are of Bias Ply type.

I don't think it makes much difference with an old 400 bike anyway. If you do go for a 130, the BT45 is a sports mileage, thats going to last longer than the BT92, while still offering you enough grip to scrape the pegs if you see fit to.

You'll probably find the bike feels more lean happy / flickable with the narrower tyre.

One idea would be to get part-worn 130 tyre (BT45) as suggested and give it a go, if you prefer it, re-sell the BT92 as theres good demand for these tyres on ebay and you'll probabyl get more than you paid for the BT45 :)

Forgot to say, if your really after a BT92 and wish to keep the standard rim you can fit a 140/60/18 BT92 to it, it's wider than stock 130 but theres less chance of distortion than a 150 which is on the upper edge of a 3.5 rim.

Neosophist wrote:150 is technically possible to fit on a 3.5 rim (obv as its on there) although it may deform a little, it's certainly wider than the Honda recommended.

Most tyre fitters will do a change over for you, for around £5-£10 usually, give a call around.

The BT92 is a tyre of radial construction, which is 'newer' and generally considered superior type of tyre to the choices available in 130 (BT45/BT39) which are of Bias Ply type.

I don't think it makes much difference with an old 400 bike anyway. If you do go for a 130, the BT45 is a sports mileage, thats going to last longer than the BT92, while still offering you enough grip to scrape the pegs if you see fit to.

You'll probably find the bike feels more lean happy / flickable with the narrower tyre.

One idea would be to get part-worn 130 tyre (BT45) as suggested and give it a go, if you prefer it, re-sell the BT92 as theres good demand for these tyres on ebay and you'll probabyl get more than you paid for the BT45 :)

Forgot to say, if your really after a BT92 and wish to keep the standard rim you can fit a 140/60/18 BT92 to it, it's wider than stock 130 but theres less chance of distortion than a 150 which is on the upper edge of a 3.5 rim.

decisions decisions....

i want to make the bike as standard as possible, i bought it in a state, it had been badly streetfightered. ive just about finished gathering the parts looks a bit taty but its getting there!

i do like the idea of the wider tyre, i know its not a good thing for the handling but it makes me feel more confident when leaning. im new to biking and im a bit low on confidence in the corners

i think i favour the idea of the 140 closer to stock but a little bit wider, any recommendations for the front, got a manky dodgy looking dunlop that needs replacing?

cheers dave

Oh if thats all your worried about I reccomend stock size BT45's front and rear.

130/70/18 on the back and 100/90/16 on the front.

And don't worry about leaning, that'll come with experience, not better tyres (unless you have a psychological fear)

It's VERY easy to scrape the pegs and the sidestand (to the point where there worn away) at 60mph+ using them.. I can make you a video if you need re-assurance :)

Renewing the suspension, bearings and brakes would be wiser than getting bigger tyres, as these bikes are getting on and often change hands and these items are very easy to neglect / overlook and can really benefit the bike.

Plus the BT45's of today are much better construction than the tyres of the mid 80's.