What is the restriction bhp

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

Right,since I am a newly passed rider and female am not sure bout these things so here goes....
Am picking up my 600 this wk end but have to have it restricted. Firstly what is my 600 hornet bhp before restriction and then after it has been done??
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Live on the Isle of Wight and ride a CBR600F

..... · Quote Me Happy Joined: 15 Jan 2005 Karma :

Well after it is 33BHP.....

Probably about 90 - 95 before...

tatters · Exxon Valdez Joined: 05 Jan 2004 Karma :

Did,nt you do your DAS, if so you don,t need to have a 33bhp bike.
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instigator · Super Spammer Joined: 19 Oct 2004 Karma :

Aye, they say the hornet has about 92bhp but more like 85 really.

After restriction, you're looking at spot on 33.0. I put my restricted er5 on the dyno and it came out as 32.9 and 33.1bhp on the two runs.

Not going to get much more than 100 really.

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

No Tatters, I did not do DAS, could not afford it for a start and not bothered about getting a huge great monster to ride on. Topping 80 - 90 mph is ample enough for me here on the Island and will stop me from killing myself,will give me a chance to gain experience, in two yrs it can come off and, it dont bother me, must be a man thing. Thanks guys, I love this site, if I want to find something out I can rely on you here to get me a quick reply :mrgreen : Thumbs Up

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Live on the Isle of Wight and ride a CBR600F

3806danny · Spanner Monkey Joined: 15 Aug 2005 Karma :

my 600 bandit is 33bhp and its faster enough 4 now? untill the 2 years run out

kawakid · World Chat Champion Joined: 15 Mar 2005 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

The legal limit is 25kW, which is about 33.8hp.

All the best

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

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

Ok,ok,so what does it all mean then, I know it stands for break horse power but what does it mean exactly,what does the bhp do exactly, sorry girl questions I know but hey, I am learning Mr. Green

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Live on the Isle of Wight and ride a CBR600F

3806danny · Spanner Monkey Joined: 15 Aug 2005 Karma :

the max engine power that u can ride by law is 33bhp like me,you will need to take it to local dealer to restrict it and get a certifcate for the insurance

3806danny · Spanner Monkey Joined: 15 Aug 2005 Karma :

ive had nearly 100mph and it had a bit more to go, not 70mph monokid

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

Erm, aren't you over 21?

If so, did you Direct Access (DAS), if not, why not Confused

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MarJay · But it's British! Joined: 15 Sep 2003 Karma :

thats not an easy question to answer.

BHP is an imperial measurement of power. Kw is metric.

33bhp is about what a honda 400 bros makes as standard, or a derestricted RS125.

Your bike makes about three times that power.

Torque is a measurement of turning force produced by the crankshaft of the engine. Power is how quickly the engine can produce the torque.

Quite roughly power = torque x revs.

So a lower revving bike makes less power than the same bike which revs higher. Similarly a larger capacity bike that revs the same as a smaller capacity bike will make more torque therefore more power.

TBH you don't really need to know this to ride the bike, but it helps to know the law concerning bikes to be able to legally ride them.
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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

3806danny · Spanner Monkey Joined: 15 Aug 2005 Karma :

g, who?

Chriss · World Chat Champion Joined: 07 May 2005 Karma :

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

MarJay, thats a pretty impressive reply, thank you. Will have to read that over and over for my brain to understand it all Laughing

I did not choose to do DAS mainly down to the expense of it and I am not interested in going out to get on a huge bike and seeing how fast I can go.
My bike will be ready Saturday, all restricted too for me, I would not even think about breaking any laws by say not having it done, the insurance require a copy of the certificate too, I have already spoken to them.
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Live on the Isle of Wight and ride a CBR600F

extreme3d · World Chat Champion Joined: 27 Dec 2004 Karma :

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Rookie · World Chat Champion Joined: 09 Feb 2005 Karma :

Remember, the HP restriction won't only limit your top end, as you've mentioned you're not worried about, but also your acceleration.

It may be illegal, but you'd have to be unlucky to be caught without the restrictors, if you have the documentation. So in your situation, you can take them out if and when you want to really.

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

I'll be fine G, really, I do not regret not doing the DAS, its down to personnal choice, had I been male then yes maybe I would regret it but like I said I am not interested in seeing how fast I can go, I intend to go careful until 100% confident with the bike.
And like Rookie says, those restrictors can come off before the two yrs is up if I am prepared to take that chance of not being stopped.
Chap at where I am getting mine from said most guys that have restriction fitted soon take them off Thumbs Up

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Live on the Isle of Wight and ride a CBR600F

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

ISLAND GIRL · World Chat Champion Joined: 24 Oct 2005 Karma :

The OH has said after a few months of getting to know mine I can try his 650 out but I doubt I will be doing that since its so damm heavy what with being a sports tourer.
If I give in to taking the kit off earlier than I should I will certainly put my hands up Mr. Green

All the same its got to be better and have more power than my CG125 for sure, if anything I feel that I am being cautious and sensible.
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Live on the Isle of Wight and ride a CBR600F

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

fuzz · World Chat Champion Joined: 24 Mar 2004 Karma :

I was actually going to ask what units the equation was in, otherwise it's useless.
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