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What is the fastest 4stroke 125 on the market?

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ThePhantom125
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Joined: 12 Mar 2012
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PostPosted: 22:04 - 12 Mar 2012    Post subject: What is the fastest 4stroke 125 on the market? Reply with quote
Four strokes are clearly more reliable and much better for distance riding so was just wondering what is the fastest? really dont wanna buy one and it be really slow and dangerous. Or am i better off buying a 2stroke keeping in mind it needs to last me a year without braking on me untill i can take my full test, dont have a budget and something with a decent resale value to would be good for when i make the step up. Thanks
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Ayrton
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PostPosted: 22:14 - 12 Mar 2012    Post subject: Re: What is the fastest 4stroke 125 on the market? Reply with quote
ThePhantom125 wrote:
Four strokes are clearly more reliable and much better for distance riding so was just wondering what is the fastest? really dont wanna buy one and it be really slow and dangerous. Or am i better off buying a 2stroke keeping in mind it needs to last me a year without braking on me untill i can take my full test, dont have a budget and something with a decent resale value to would be good for when i make the step up. Thanks


you wont find a 125 that is fast. I have a cbr125 which is a bit of a sporty 125, but my brothers ybr will keep up with it just fine.
It wont be dangerous either. As long as it will go 60mph it will be fine.

Get a fast bike after passing your test.
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J.M.
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PostPosted: 22:16 - 12 Mar 2012    Post subject: Reply with quote
Any 125 4-stroke should be able to get and hold a real 60mph. That's good enough until you pass your tests. Thumbs Up

I'm still riding my cbr125 6 months after passing my test, because I don't see the worth in paying an extra ~£200 on the insurance* to get a bigger bike. May as well wait for my NCB and insure it then.

You should be able to sell a 125 for pretty much what you bought it for.

Why do you have to wait a year to do your tests? If you're old enough to ride a 125 then you're old enough to take your tests. Get them passed before January 2013 or you will more than likely regret it. Thumbs Up

* I have a 125-only underwriter. I would have to cancel and get a new policy with someone else.
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ThePhantom125
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PostPosted: 22:38 - 12 Mar 2012    Post subject: Reply with quote
I mean i have to wait a year till i can get a bigger bike im almost 20 now so i can get one next year anyway i was thinking about a ktm duke 125.
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J.M.
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PostPosted: 22:42 - 12 Mar 2012    Post subject: Reply with quote
January 2013 the DAS age goes from 21 to 24.
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herulach
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PostPosted: 22:43 - 12 Mar 2012    Post subject: Reply with quote
ThePhantom125 wrote:
I mean i have to wait a year till i can get a bigger bike im almost 20 now so i can get one next year anyway i was thinking about a ktm duke 125.


Don't bother. Just get a ybr/cbf (preference on the former). 125s are impossible to look good on, put the rest of the money in the bank & splash it on a big bike.
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Rogerborg
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PostPosted: 23:04 - 12 Mar 2012    Post subject: Reply with quote
J.M. wrote:
January 2013 the DAS age goes from 21 to 24.


^^^^^^^^^^^
THIS MEANS YOU.

Sorry, you're screwed. Your quickest route to a "big bike" is to get any basic commuter style bike right now, sit your "standard" tests ASAP and wait out the 2 year 25kW restriction.

Or you can wait until next January, pay for a training course and pass (new) A2 to get a new 35kW license, then pay all over again in 2015 and sit another test/tests to get an unrestricted A license.

Sorry.
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Teflon-Mike
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PostPosted: 23:25 - 12 Mar 2012    Post subject: Re: What is the fastest 4stroke 125 on the market? Reply with quote
ThePhantom125 wrote:
Four strokes are clearly more reliable and much better for distance riding so was just wondering what is the fastest? really dont wanna buy one and it be really slow and dangerous. Or am i better off buying a 2stroke keeping in mind it needs to last me a year without braking on me untill i can take my full test, dont have a budget and something with a decent resale value to would be good for when i make the step up. Thanks


A 35 Year Old Honda CB125 'Twin'. is the answer to your question.

But you cant ride one legally on L-Plates. Riding anything over 14.5bhp on an L-Plate is illegal, and the CB125 'Twin' makes a wolloping 17bhp if in decent fettle!

UK Learner-Laws & EU A1 licence limits have successively made 125's ever less powerful, and effectively legislated the two-strokes out of existance.

The old CB125 Twin, was the most powerful 'production' Four-stroke built; designed to compete head to head with the two stroke rivals on performance by Four-Stroke fanatical Honda 'in the day'.

They succeeded, but while it matched the two-strokes for speed, it also matched them for reliability & ecconomy; and the more complicated engine vexed teen-age mechanics even more frequently than the 'simple' strokers. So 35 years on, an even LESS viable prospect!

Meanwhile..... If you can afford ANY bike, you can afford the £121.50 to get a FULL Licence.

That is ALL it costs.

£31 for the Theory/Hazard test
£15.50 for the Mod 1 'Off-Road' Practical
£75 for the Mod 2 'On-Road' Practical.

Compared to cost of buying a bike; insuring it, maintaining it and putting petrol in the tank, this is insignificant. Even a bit of training to help you through them need not break the bank; local school to me offer fullcourse of rider training for just £125; others in otehr areas if you hunt about, aren't far off.

DAS you wont be able to do for another four years, as mentioned.

Do a DAS course; its expensive. Courses are advertsised from about £500; but that often doesn't include the test fees.

Testing on a 125, gets you same full licence; a damn site cheaper; you just have to live with the 33bhp restriction until then.

Here and now; Fuck looks; fuck speed; suck ANYTHING but what it takes to get that licence WHILE you still can, on a tiddler.

25Kw Restriction will still lapse two years before you could test under DAS anyway.

You need something with an engine; preferably one that works. Two wheels; Preferably round, with tyres that hold air, would be 'nice' as well. To be test complient; needs an engine between 120cc and 125cc, and to be on the DSA 'Standard-Bike' list of approved machines meeting minumum speed requirement.

This disqualifies most generic Chinese brand bikes, and the Aprillia RS... though requirement for a working engine probably dismisses most of them anyway! That bike needs official 'proof of restriction' to take tests on.

So go grab ANTYHING that will do the job and go get a licence with it.
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RhynoCZ
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PostPosted: 23:37 - 12 Mar 2012    Post subject: Reply with quote
Just check this MCN review: https://www.youtube.com/watch?v=72MYqcDF3m4
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mwr_allen
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Joined: 23 Mar 2016
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PostPosted: 17:56 - 23 Mar 2016    Post subject: Reply with quote
I bought an Aprilia RS125 full power 2 stroke in 2011 which then did 92mph and it's just done over 40,000 miles and still does over 80mph and running very well so if you look after a 2 stroke well then they will run until the cows come home.
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stevo as b4
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PostPosted: 18:15 - 23 Mar 2016    Post subject: Reply with quote
Why would you choose a 125cc bike with no Criteria except which is the fastest?

It's like me saying what's the fastest 1000cc bike I can get? but what if the fastest top speed 1000 was the wrong type or style of bike for my requirements or interest in riding?

What do you you want, the fastest sports 125? the fastest trailie enduro or motocross bike? The fastest sit up.and beg Commuter? Scooter?
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Bigvern72
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PostPosted: 18:16 - 23 Mar 2016    Post subject: Reply with quote
mwr_allen wrote:
I bought an Aprilia RS125 full power 2 stroke in 2011 which then did 92mph and it's just done over 40,000 miles and still does over 80mph and running very well so if you look after a 2 stroke well then they will run until the cows come home.


Holy necro batman

I wonder what OP rides now Wink
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Ste
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PostPosted: 18:20 - 23 Mar 2016    Post subject: Reply with quote
mwr_allen wrote:
I bought an Aprilia RS125 full power 2 stroke in 2011 which then did 92mph and it's just done over 40,000 miles and still does over 80mph and running very well so if you look after a 2 stroke well then they will run until the cows come home.

Needs fixing cos it's missing 10mph. Wink
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Howling Terror
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PostPosted: 18:21 - 23 Mar 2016    Post subject: Reply with quote
Would like to know which is the fastest 125 4 stroke.
The Moto3 250s are capable of 145mph.
A hundred mph 125 would be fun.
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mwr_allen
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PostPosted: 18:22 - 23 Mar 2016    Post subject: Reply with quote
Ste wrote:
mwr_allen wrote:
I bought an Aprilia RS125 full power 2 stroke in 2011 which then did 92mph and it's just done over 40,000 miles and still does over 80mph and running very well so if you look after a 2 stroke well then they will run until the cows come home.

Needs fixing cos it's missing 10mph. Wink


just carbon build up and seized power valve but when it's cleaned out it will be faster.
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Ste
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PostPosted: 18:27 - 23 Mar 2016    Post subject: Reply with quote
Howling Terror wrote:
Would like to know which is the fastest 125 4 stroke.

There's no such thing. Razz
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stevo as b4
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PostPosted: 18:46 - 23 Mar 2016    Post subject: Reply with quote
The Yamaha YZF125R manages a true 73 and a bit on the runway according to Superbikes testing gear.

Teff might be right about the CB125T, but you won't find a running one for sale, and as the 16bhp RD's and GT's never quite managed to hit 80mph in tests, I'd be surprised if the Honda did?
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Dave70
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PostPosted: 00:16 - 24 Mar 2016    Post subject: Reply with quote
stevo as b4 wrote:
The Yamaha YZF125R manages a true 73 and a bit on the runway according to Superbikes testing gear.


I managed 81mph on mine once or twice, albeit down hill.

On motorways it'd regularly do 75/76mph on a nice day but, less if there was a strongish wind against you or up hill of course.

You'd have to ride full throttle red line though and I guess that is what eventually killed the engine.
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talkToTheHat
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PostPosted: 05:59 - 24 Mar 2016    Post subject: Reply with quote
The fastest 124 is one flown in by air freight.

...and dropped out the cargo bay at 40000 feet or so...
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stevo as b4
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PostPosted: 06:57 - 24 Mar 2016    Post subject: Reply with quote
Probably the same for shitty XV535's tbh!
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talkToTheHat
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PostPosted: 02:44 - 25 Mar 2016    Post subject: Reply with quote
It sold pretty fast. And it still generates personal attacks pretty fast. Yawn.
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thx1138
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PostPosted: 02:58 - 25 Mar 2016    Post subject: Reply with quote
stevo as b4 wrote:
Why would you choose a 125cc bike with no Criteria except which is the fastest?

It's like me saying what's the fastest 1000cc bike I can get? but what if the fastest top speed 1000 was the wrong type or style of bike for my requirements or interest in riding?

What do you you want, the fastest sports 125? the fastest trailie enduro or motocross bike? The fastest sit up.and beg Commuter? Scooter?


Because. Top Trumps. That's what everyone used before google anyway. Get the Top Trumps out, and it's gospel.

My CBF 125 red lines a shade over 65mph Evil or Very Mad
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Northern Monkey
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PostPosted: 08:46 - 25 Mar 2016    Post subject: Reply with quote
had an indicated 73 on the msx. Was a bloody strong tail wind though.
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mwr_allen
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PostPosted: 22:31 - 06 Mar 2017    Post subject: Reply with quote
Bigvern72 wrote:
mwr_allen wrote:
I bought an Aprilia RS125 full power 2 stroke in 2011 which then did 92mph and it's just done over 40,000 miles and still does over 80mph and running very well so if you look after a 2 stroke well then they will run until the cows come home.


Holy necro batman

I wonder what OP rides now Wink


Just thought I'd update my post. My old RS125 has just done 47,500 miles and had a new piston and fresh power valve blade put in and is now screaming up to 98mph!!!. The funny thing is that I read a lot about people saying that the bottom end bearings need changing between 15,000 and 25,000 miles depending on usage but when I had the piston changed at 46,800 miles I asked the mechanic to check for play on the con rod and he said there was absolutely no play whatsoever.
I think this bike is magic!!!
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goto10
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PostPosted: 18:31 - 07 Mar 2017    Post subject: Reply with quote
mwr_allen wrote:
... 98mph!!!!!


Indicated by your speedo?
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The last post was made 7 years, 41 days ago. Instead of replying here, would creating a new thread be more useful?
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