I think my dealer is scamming me...

[Rollins]

I bought my RS125 from Speedaway Motorcycles in Blackheath (just outside of Birmingham) brand new, as a learner, so naturally it was fitted with L plates. As a learner legal bike, the dealer has an obligation to restrict the bike to 14.6bhp, or 11kW.

I have since passed my test, and today I booked it in for its 4000km service, also asking for it to be derestricted. But amazingly, the guy said that the bike is already derestricted, because they do it to all RS's they have in stock.

Is this a joke or what?? I have written proof from one of the salesmen that it's restricted to 11kW, however the mechanic in Service reckons they're all full power!! Surely the salesman wouldn't do this without being 100% certain?? I'm now left a little disappointed, as I won't get my long awaited power hike, and it means they must have sold me an illegal bike from the start.
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"... I wouldn't mind doing 130 up to a T junction, but unfortunately my bike tops out at 120 which is gay..."
2005 CBR600RR

[tony532]

if there is a power surge (so to speak) at 7,500 - 8000 revs and it does 100mph (at least indicated on the speedo) then it's de-restricted

it's probably not upto the dealer to make sure you have the correct license only yourself

as a lot of them sell them full power

edit:-

although you did ask for written proof that it was restricted. not sure on your legal rights on this as you have been riding around illegally in a sense

[Ste]

Honda places often denied that the NSR was restricted so it's not a suprise that Aprilia also do, how fast will your bike go?

Them saying that is just them saying "No, we will not de-restrict it!", it does not necessary mean that they sold you a bike which you were not license to ride all it means is that they're saying that the bikes are not restricted.

[Retro-Man]

[Rollins]

They have an in-house dyno, so I suppose that would give the real answer. I've got an indicated 90mph before, but haven't actually redlined it in top gear yet.
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"... I wouldn't mind doing 130 up to a T junction, but unfortunately my bike tops out at 120 which is gay..."
2005 CBR600RR

[Kickstart]

Hi

There are 2 types of "derestriction" done on the RS125.

The one that actually gives it the 100mph (ish) top speed is the connecting up of the power valve. This takes is from around 15hp to around 25hp (on a new shape one, more on the older ones).

There is also the environmental restriction. This is in place to cause a massive flat spot between 5000 and 6000rpm. Probably to get it through noise tests. This can be removed by modifying the CDI unit, and this is commonly done to new bikes. It makes no differnce at all to top end power.

My guess is that Speedaway have supplied the bike with the 2nd derestriction done.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Rollins]

Hmm, dunno about the removal of the 2nd restriction as it stutters and jerks between 5-6k rpm on a neutral throttle, nowhere else in the rev range - I'm guessing that's what you mean?

EDIT: - There's also a dip in power when I'm accelerating hard in 4th or 5th gear - as I hit 8000rpm, the bike seems to stop accelerating and get only moderately faster until 11k.

I'll get them to do a dyno run for it, then I'll know for definite. Cheers anyway Keith
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"... I wouldn't mind doing 130 up to a T junction, but unfortunately my bike tops out at 120 which is gay..."
2005 CBR600RR

[tony532]

i think we are talking aprilia rs125 not honda nsr125 here

if at 7500 - 8000 revs the bike starts to come to life and revs upto the redline then it's de-restricted

if you undo the bolt at the front of the tank and prop it up

you should see a gold cylinder to the right of the battery

and if you see two white connecters plugged into each other then then it should be full power


if thats the case then you have nothing more in power terms to look forward to unless

edit:-

there are some mods available that will get your bike upto 33 bhp

that everyone with a standard de-restricted rs claims to have but doesnt


34mm carb,racing cdi jim lomas full exhaust system e.t.c

[Kickstart]