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2T 125cc motorcycle for track days

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Scootaloo
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PostPosted: 16:24 - 21 Mar 2012    Post subject: 2T 125cc motorcycle for track days Reply with quote

Good afternoon all

I'm on the lookout for decent 2T 125cc motorcycle for bombing around on the weekends and track day work (eventually)

I have had a look at the RS125 GP edition and regular pre-2005 fully de-restricted ones and I must say they do look good, obviously there are some questionable ones out there, but with a bit of hunting I'm sure Ill find one right for the price.

I've also had a look for NSR125s and they look nice as well but seem to be more difficult to locate.

My question is, what other options are there?

Reason for getting 2T - there slowly phasing out production and good examples will be harder to find later on for a reasonable price.

Regards, Scootaloo.
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MarJay
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PostPosted: 16:31 - 21 Mar 2012    Post subject: Reply with quote

Why do you want a 125? You aren't allowed on trackdays with L plates, and you'll hold up every other person on the trackday. The absolute minimum I'd want is a two stroke 250 sports bike.
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Scootaloo
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PostPosted: 16:44 - 21 Mar 2012    Post subject: Reply with quote

MarJay wrote:
Why do you want a 125? You aren't allowed on trackdays with L plates, and you'll hold up every other person on the trackday. The absolute minimum I'd want is a two stroke 250 sports bike.


I'm going to pass my mod 2 before I buy one, but was just seeing if there are others worth mentioning

Fully de-restricted Tuned RS125 will do about 100 and 0-60 in about 5-6 seconds and it weighs nothing so I'm sure I would be able to hold the speed round the corners, sadly an RS250 will have to be restricted for me to ride on A2 and thus remove the power-band rev range.

Guess I best wait for a few years before attempting a track day.

Cheers, Scootaloo
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G
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PostPosted: 16:59 - 21 Mar 2012    Post subject: Re: 2T 125cc motorcycle for track days Reply with quote

How about looking at a 2MA TZR250?
These won't lose a massive amount restricted to 33hp.

I suspect a 33hp RS250 may still feel more 'powerbandy' than an RS125. One of the powervalves on one of mine was stuck closed to give 37.5hp - still reasonably 'powerbandy' feel.

While you certainly can do a trackday on an RS125, it's far from an ideal bike and may become frustrating quite quickly - as you get stuck behind the same slower riders every time they pass you on the straight.
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Scootaloo
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PostPosted: 17:51 - 21 Mar 2012    Post subject: Re: 2T 125cc motorcycle for track days Reply with quote

G wrote:
How about looking at a 2MA TZR250?
These won't lose a massive amount restricted to 33hp.

I suspect a 33hp RS250 may still feel more 'powerbandy' than an RS125. One of the powervalves on one of mine was stuck closed to give 37.5hp - still reasonably 'powerbandy' feel.

While you certainly can do a trackday on an RS125, it's far from an ideal bike and may become frustrating quite quickly - as you get stuck behind the same slower riders every time they pass you on the straight.


Ah, I see. Looking at the TZR250... looks great! This has given me more food for thought. I shall have to consider my options carefully.

Cheers, Scootaloo
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G
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PostPosted: 19:02 - 21 Mar 2012    Post subject: Reply with quote

Rob Fzs wrote:
honda rs125

just came back from a trackday at oulton park and it was holding its own against all the bigger bikes

Bet it had a rather skilled rider - and definitely a rather different prospect to the Aprilia

Do fancy a go on a proper GP bike, but not sure the general hassle and expense of ownership is worth it. Do seem to hold their value fairly well.
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T0MMY
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PostPosted: 20:33 - 21 Mar 2012    Post subject: Reply with quote

A non-competition 2t 125 might be alright on some tracks but I think it would be extremely frustrating on all the tracks I've ever done. I think you'd find many corners where you wouldn't have got up enough speed from the previous one to feel on the limit which would make it a bit pointless.
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SnowyTupwood
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PostPosted: 23:56 - 21 Mar 2012    Post subject: Reply with quote

Quote:
How about looking at a 2MA TZR250?


Ha ha, i know a bit about them! Razz

Mines a pretty good average of what a tuned one puts out, 50 odd hp on a dynapro dyno, it gets mullered on the longer tracks down the straights by everything 600cc and over, the corner speed makes up for it on the shorter tracks, a 33hp one would be pretty awful I would think, certainly they aren't the easiest bike to restrict, and decent ones are getting expensive now Rolling Eyes To build one to YPM spec can swallow a good couple of grand as well, not a cheap bike any more unfortunatly

Don't discount the RS125 Aprillia, the same applies for strightline speed, some of the superteens prove pretty difficult to get past though, and you can carry an awful lot of speed through the corners, nice little bike and the race ones are putting out near on 33hp, weigh bugger all as well.

As far as i know, most trackday companies won't accept a restricted licence anyway

Proper GP125's are a different thing altogether, I couldn't catch one last year at cadwell testing on the LC, it just went away from me and carried so much into the corners. I'd love a go on one, RS250 even more so, but I doubt I have the talent or bravery to get the best out of one!
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Scootaloo
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PostPosted: 11:50 - 26 Mar 2012    Post subject: Reply with quote

SnowyTupwood wrote:
Quote:
How about looking at a 2MA TZR250?


Ha ha, i know a bit about them! Razz

Mines a pretty good average of what a tuned one puts out, 50 odd hp on a dynapro dyno, it gets mullered on the longer tracks down the straights by everything 600cc and over, the corner speed makes up for it on the shorter tracks, a 33hp one would be pretty awful I would think, certainly they aren't the easiest bike to restrict, and decent ones are getting expensive now Rolling Eyes To build one to YPM spec can swallow a good couple of grand as well, not a cheap bike any more unfortunatly

Don't discount the RS125 Aprillia, the same applies for strightline speed, some of the superteens prove pretty difficult to get past though, and you can carry an awful lot of speed through the corners, nice little bike and the race ones are putting out near on 33hp, weigh bugger all as well.

As far as i know, most trackday companies won't accept a restricted licence anyway

Proper GP125's are a different thing altogether, I couldn't catch one last year at cadwell testing on the LC, it just went away from me and carried so much into the corners. I'd love a go on one, RS250 even more so, but I doubt I have the talent or bravery to get the best out of one!


Yeah, I had a go on a CB-1 this weekend ( instantly sold Very Happy ) so now I have a CB-1 with a good drive system, engine and a wider track day tyres already fitted, a bit tatty as far is it looks but it feels solid and starts first time every-time.

it makes about 52 Bhp at 10,000 RPM

I sure hope that's got enough kick for the track? as I wouldn't tell a lie when saying I feel slightly intimidated pulling back the throttle on that thing. Mind you only managed to take it out twice so far.

Cheers, Scootaloo
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MarJay
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PostPosted: 11:57 - 26 Mar 2012    Post subject: Reply with quote

Scootaloo wrote:

Yeah, I had a go on a CB-1 this weekend ( instantly sold Very Happy ) so now I have a CB-1 with a good drive system, engine and a wider track day tyres already fitted, a bit tatty as far is it looks but it feels solid and starts first time every-time.

it makes about 52 Bhp at 10,000 RPM

I sure hope that's got enough kick for the track? as I wouldn't tell a lie when saying I feel slightly intimidated pulling back the throttle on that thing. Mind you only managed to take it out twice so far.

Cheers, Scootaloo


All bikes will feel fast after a 125.

However, the 'wider trackday tyres' might actually ruin the handling, not to mention rub on the swinging arm and mudguard. I'd consider swapping them for standard sizes if I were you. I'm sure you can get sticky rubber in original sizes, so there's no point going for wide tyres.
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G
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PostPosted: 12:17 - 26 Mar 2012    Post subject: Reply with quote

MarJay wrote:

However, the 'wider trackday tyres' might actually ruin the handling, not to mention rub on the swinging arm and mudguard. I'd consider swapping them for standard sizes if I were you. I'm sure you can get sticky rubber in original sizes, so there's no point going for wide tyres.

Because they're cheaper?
If it takes 110/150 as standard and it's got 120/160 on I'd leave it and see how it goes - often saw RS250s running these just because they were more common I think.

Did you buy it from Tommy on here by any chance?

Personally, I'd prefer double that power for a trackday. But it should do you fine - and certainly better than something with half that power Smile.
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Scootaloo
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PostPosted: 12:27 - 26 Mar 2012    Post subject: Reply with quote

G wrote:
MarJay wrote:

However, the 'wider trackday tyres' might actually ruin the handling, not to mention rub on the swinging arm and mudguard. I'd consider swapping them for standard sizes if I were you. I'm sure you can get sticky rubber in original sizes, so there's no point going for wide tyres.

Because they're cheaper?
If it takes 110/150 as standard and it's got 120/160 on I'd leave it and see how it goes - often saw RS250s running these just because they were more common I think.

Did you buy it from Tommy on here by any chance?


No, was seeing about going to see his, definitely a better example than mine from what I can tell. But this one was nearer and has less miles on the clock and a bit cheaper, so I thought what the heck, lets go for it.

I don't have anything to compare to but it certainly didn't feel awkward turning and the wheel is definitely not rubbing/scraping anything.

Cheers, Scootaloo
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T0MMY
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PostPosted: 17:41 - 26 Mar 2012    Post subject: Reply with quote

Yep, not mine. Still not 100% sure I want to sell it.

The standard tyre is 140 at the back...BT45s or nothing really. If you go up to 150 you can get radials like Diablos quite cheap which are ok for the road. Race scrubs can be found as they're the size used on RS125s...I have Power Ones on there and it handles better than the previous size tyres (although these tyres are obviously a lot grippier than the shitty bias plys the bike came on). Can't remember about the front but 150s are the way to go on the rear.

The CB-1 is easily quick enough for novice and intermediate if you can get the best out of it. You just need to hang off like an ape to keep the pegs off the ground. You'd probably be a rolling road block in the fast group although I haven't had the balls to try that on it yet. Maybe one day if I break the ZX6R after I'm already booked in I'll have to Laughing
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Scootaloo
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PostPosted: 11:56 - 27 Mar 2012    Post subject: Reply with quote

T0MMY wrote:
Yep, not mine. Still not 100% sure I want to sell it.

The standard tyre is 140 at the back...BT45s or nothing really. If you go up to 150 you can get radials like Diablos quite cheap which are ok for the road. Race scrubs can be found as they're the size used on RS125s...I have Power Ones on there and it handles better than the previous size tyres (although these tyres are obviously a lot grippier than the shitty bias plys the bike came on). Can't remember about the front but 150s are the way to go on the rear.

The CB-1 is easily quick enough for novice and intermediate if you can get the best out of it. You just need to hang off like an ape to keep the pegs off the ground. You'd probably be a rolling road block in the fast group although I haven't had the balls to try that on it yet. Maybe one day if I break the ZX6R after I'm already booked in I'll have to Laughing


Sounds like a blast, Can't wait for my first track day.
Yeah, it's definitely quick enough for me, and that sound... Very Happy

All the best, Scootaloo
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T0MMY
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PostPosted: 12:13 - 27 Mar 2012    Post subject: Reply with quote

They do make a lovely sound...I like the higher pitch engine note of 400s anyway plus you have the lovely cam gear train whine too Cool

They really are great little bikes...I really want to keep mine but it just doesn't get used. I'd love to get another CBR400RR but they're way overpriced compared to 600s and they're not really quick enough for the track. Perfect road bike power wise imo though.
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Kickstart
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PostPosted: 20:34 - 27 Mar 2012    Post subject: Reply with quote

Hi

A good rider on an RS125 on a tight track (like Cadwell) do fine, but on a fast track or if the rider isn't very good they will be left for dead.

Good few years ago at Cadwell there were 3 RS125 Superteen riders on a track day. One was one of the quickest in the intermediate group. Of the other 2, one was a fair bit slower while the other was nowhere special in the novice group.

Scootaloo wrote:
Fully de-restricted Tuned RS125 will do about 100 and 0-60 in about 5-6 seconds and it weighs nothing so I'm sure I would be able to hold the speed round the corners


Probably nearer 7 seconds to 60, not that it really matters for a track day.

All the best

Keith
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