CBT Restrictions

[calcal]

I had a few questions about CBT and restrictions.

When I was 16 I did my CBT and had an unrestricted 50cc which wasn't very fast, and as I saw most people I knew didn't have their's restricted.

I am 19 now, done my CBT again and looking at a 125. I found a really good one, a Cagiva 125 Planet. It is 125cc, but I am worried about the restriction part.

The person who owns it not has a full license (for a long time), so no L plates or restrictions. Apparently the planet has 23bhp, so this makes it illegal to ride with just a CBT?

Is this right? Is it possible to restrict a bike like that? I know a lot of people who derestrict a 50cc, but not heard so much about 125's.

Any advice?

[J.M.]

Advice: Get a reliable 4-stroke from a well known make, such as Honda and Suzuki, pass your tests and then buy a big boy bike

The Honda Hornet looks a little similar in my opinion, but I don't know a great deal about the bikes themselves.
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2004 R1 & 2018 XSR900

[kotachi]

The Cagiva 125 you're looking at, same as the Cagiva Mito, has a neat little highly tuned 2t (2-stroke) engine. So it's going to produce more than the CBT-legal 14.6bhp of power.

As I was looking at buying a similarly-overpowered Aprilia RS 125, I understand your position completely.

It's not learner legal, not officially but it is perfectly "restrictable", same as someone buying a 600 after passing their A2 and restricting it to 33bhp, you can restrict it's engine in the same way to 14.6bhp.

But if of course, you don't know better, you can just claim it was sold to you as seen, as "learner legal" and enjoy the power

Hehehehehe...
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CBT done - 24/03/2012, theory test done - 03/04/2012.. Mod 1 done -26/06/2012, Mod 2 done - 29/06/2012. Current steed: Cage.
Suntan Sid said: "Look at it this way, your employer wants to pay you the minimum amount, it thinks it can get away with, and extract from you the maximum amount of graft. Ergo it's your responsibility to ensure that karma is restored and you do as little work as you think you can get away with, for the maximum amount of money."

[calcal]

[J.M.]

[calcal]

Thanks for the advice.

I dont know too much about bike mechanics, but for an rs125 if you disconnect the power valve it drops below the horsepower limit?.

Is it that simple? Would the mito/planet have a power valve?

[calcal]

One other thing.

I guess I need to apply for a new provisional so i will have my full car license and a provisional bike license.

If I was caught riding a 125cc on L-plates over 15hp, what are the likely consequences? Could I loose my car license? I have had it for over 2 years, and have no points.

[Teflon-Mike]

Look, your not 16 any more, if you are old enough to ride a 125 on L-Plates you are old enough to take tests, get a full licence and ride whatever the fuck you like, perfectly legally!

Cost a WOPPING £121.50p for the theory/hazard test & two mod practical, and takes probably half a day of your life to do them.

WHATS THE FUCKING PROBLEM!

Why all the rigmarole trying to 'cheat' the system with a hi-po tiddler, 'on the dodge'.

It wont fool any-one! And only person that will be frustrated by it will be you, trying to find a solution to a problem emntirely of your own making, and eminantly avoidable!

GOOD REASON that Cagivas and Aprilias are flogged 'cheap'.

If you can afford to run one; you can afford to buy a new one.

They are high maintenence machines with highly tuned, highly stressed engines that return around 60mpg on a 'good' day and demand about 20-30p's worth of expensive, race grade synthetic two stroke oil to every £1.40's worth of petrol, have pistos & rings listed as service spares, with replacement intervals as short as oil & filter changes on a fourstroke, & require a complete top end rebuild to fit!

They are 'cheap' becouse people baulk at the cost of this kind of high cost 'maintenence'; use shiot two stroke, and shorten the pistoin life even more; then baulk at the cost of a top end rebuild, slap some new rings on the old piston with some new rings and flog it off for whatever they can get, after a life of frustration & break-downs becouse thats what the last owner did as well!

If you enjoy the thrill of 'getting away' with.... oooh! double the power you are allowed on L-Plates, but bugger all compared to what you could have with a full licence, in small doses between mechanical maledies, & big bills, that will help STOP you getting a full licence with the thing..... carry on.... the logic will be wasted on your criminal genuis!

Otherwise; scratch plan A: go to plan 'boring'. Buy a YBR125, get some lessons booked, do the tests, preferably before next january when the laws change and you will be stuck with rediculousely punative new licencing regime, and get the FULL licence that will, for two years let you ride a bike as or more powerful than a Cagiva or Mito, that is probably a damn site cheaper to buy, insure, maintain and put fuel in completely LEGALLY, and two years after that, the restriction lapsed automatically, as much performance as your balls and budget allow on a completely unrestricted licence!
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Rogerborg]

Why oh why oh why do people insist on making Tef post that over and over?

He's entirely right, if you want and can afford to run a daft highly stressed 2 stroke 125, get it as a 2nd or 3rd bike after you're licensed up.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[P.addy]

OP, just to tickle Tefs nose, tell him you've done your CBT 3 times.

Get the Cagiva if you want, but you'll probably be better off getting a CG or YBR and putting in for your tests n stuff, I won't ram it down your throat though

[kernow24]

[calcal]

Ok, I expected everyone to say to do my test, that wasn't really my question.

I am wondering, really, if anyone knows the restrictions on a cagiva planet that make it 15bhp?

And are they possible to do at home with a little, but not a lot, of mechanical knowledge.

I have reasons for wanting this sort of 125, and not getting a 4 stroke. They are really irrelevant, all I want to do is get advice on not breaking the law....

[Taught2BCauti...]

The short answer is Yes - they can be restricted, either with a throttle stop to prevent opening the throttle fully, or by inserting washers in the airflow from the carb.

The problem is finding an affordable method that is approved by the manufacturer, buying the necessary parts and getting them fitted correctly, and being able to convince plod of these facts if required to do so.

You will also need to notify DVLA and your insurance company, because it is a modification that affects the performance of the machine.

If you do get pulled, plod is likely to check with DVLA for the stated power rating, so if it comes back as 23bhp, they will have reasonable grounds to seize the bike under section 165a RTA.

If you want to comply exactly with the law, you will need to decide if it is worth the effort and expense, compared with starting off with a learner legal bike in the first place.
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Honda Varadero XL125(V8)
www.TheFutureIsHere.eu

[Teflon-Mike]

[Kickstart]

Hi

Derestricted 125 2 strokes were pretty much standard learner bikes 20 years ago, but far less so these days when most of the learner bikes are 4 strokes. You probably do have a fair chance of getting away with it, just like you do with speeding or many other illegal activities. If you get caught you will be pretty much screwed though.

As to the Mito / Planet, not sure how they were restricted each year. Early ones were just restricted mainly with a washer welded into the top of the exhaust. Think the later ones were restricted with an auxiliary chamber on the exhaust designed to screw up how the expansion chamber works.

There are also jetting changes, and a different airbox intake. First isn't really a restriction, rather a change required to get the bike to work properly. Suspect the 2nd doesn't do much for power until derestricted (limiting the intake to the carb would be a fairly dodgy way to limit power).

As such if you want it to be restricted the first thing to find would be a standard restricted exhaust.