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Suzuki Bergman 400 - 33BHP?

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Okeydokey
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PostPosted: 23:01 - 23 Oct 2011    Post subject: Suzuki Bergman 400 - 33BHP? Reply with quote

I've seen a few opinions on whether this is ok! for the first two years without restriction but I cant find a definitive answer... does anyone know?
Thanks
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Efes123
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PostPosted: 06:31 - 24 Oct 2011    Post subject: Reply with quote

I believe it has 33.5 bhp so technically no. But, I can't see the rossers doing you for being 0.5 over the bhp. However as the actual restriction is 25Kw I believe the 33 bhp is an approximate ruling.
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Rogerborg
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PostPosted: 07:09 - 24 Oct 2011    Post subject: Reply with quote

The law is 25kW, probably at the flywheel crankshaft. However, that's impossible to measure without taking the engine apart, so the number is calculated based on power at the rear wheel * VOODOOMATHS.

I think the chance of you being successfully prosecuted is somewhere between zero and half of zero.

However, your insurer may want to see some evidence that it's <=25kW (or may not, my GPZ 305 claimed 25.5kW as new and I haven't been asked). I'm sure your friendly local dyno place can use whatever VOODOOMATHS required to arrive at that figure if you tell them the number that you want to see.
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Last edited by Rogerborg on 07:48 - 24 Oct 2011; edited 1 time in total
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Wafer_Thin_Ham
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PostPosted: 07:13 - 24 Oct 2011    Post subject: Reply with quote

Efes123 wrote:
I believe it has 33.5 bhp so technically no. But, I can't see the rossers doing you for being 0.5 over the bhp. However as the actual restriction is 25Kw I believe the 33 bhp is an approximate ruling.


33bhp is the limit.

They could prosecute for 33.0000001bhp.

No approximation required. 33bhp or less is the law.
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Rogerborg
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PostPosted: 07:46 - 24 Oct 2011    Post subject: Reply with quote

Big_Ham wrote:
33bhp is the limit.

They could prosecute for 33.0000001bhp.

No approximation required. 33bhp or less is the law.



The Motor Vehicles (Driving Licences) Regulations 1996
and The Motor Vehicles (Driving Licences) Regulations 1999

MV(DL)R wrote:

“large motor bicycle” means—(a)in the case of a motor bicycle without a side-car, a bicycle the engine of which has a maximum net power output exceeding 25 kilowatts or which has a power to weight ratio exceeding 0.16 kilowatts per kilogram, or


25 kW = 33.52554647 (b)hp.

The point of contention is more likely to be "engine [...] maximum net power output". A reasonable interpretation is the power measured at the crankshaft, but that requires a bench test. However, if the power measured anywhere after the crankshaft exceeds 25 kW, you're potentially in trouble, since the "maximum net power" can only be higher.
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P.addy
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PostPosted: 09:32 - 24 Oct 2011    Post subject: Reply with quote

I think the main query is why on earth would you ride a burgervan?

You should be fine with no restriction on that, I doubt you'll ever get pulled anyway Thumbs Up
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Rogerborg
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PostPosted: 11:58 - 24 Oct 2011    Post subject: Reply with quote

##Paddy## wrote:
I think the main query is why on earth would you ride a burgervan?


Because God - Allah - loves wondrous diversity?

Viewed as a means of transport I think they make a lot of sense. Yes, I'm scoot-curious. Shifty
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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
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P.addy
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PostPosted: 12:16 - 24 Oct 2011    Post subject: Reply with quote

Only ever ridden a ped once, hated it. Would try a burgervan, but lack of gears would be a pain for me.. I like gears. Laughing
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Cadbury
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PostPosted: 13:02 - 24 Oct 2011    Post subject: Reply with quote

##Paddy## wrote:
Only ever ridden a ped once, hated it. Would try a burgervan, but lack of gears would be a pain for me.. I like gears. Laughing


They do a 650 'executive' model that has an electric tiptronic style gearbox on it. Basically an up and down button on the left handlebar. From what I have read though most people just leave it in full auto mode.
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fatpies
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PostPosted: 13:08 - 24 Oct 2011    Post subject: Reply with quote

The power to weight ratio..

I remember ages ago some Honda 125cc cruiser was so incredibly heavy even though the engine made a bit more than the 12.5bhp it was allowed for learners.

Is my memory playing tricks on me or did this actually exist? I mean what would stop you from adding a shed load of weight to a bike just slightly over?
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The Shaggy D.A.
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PostPosted: 13:39 - 24 Oct 2011    Post subject: Reply with quote

The Burgman 400 has been described as the "escort van of the bike world". I fancy one myself.
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jimbothe
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PostPosted: 15:53 - 24 Oct 2011    Post subject: Reply with quote

Quote:
Yes, I'm scoot-curious. Shifty


Quote:
I fancy one myself.



Must admit I've had a gander as well. Shifty

They are so cheap! Look like a bargain to me.


There is one just up the road from me and at a pretty good price for a 02 plate

https://www.ebay.co.uk/itm/Suzuki-Burgman-400-K2-/150679239911?pt=UK_Motorcycles&hash=item23152ebce7
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Rogerborg
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PostPosted: 17:02 - 24 Oct 2011    Post subject: Reply with quote

fatpies wrote:
The power to weight ratio..

I remember ages ago some Honda 125cc cruiser was so incredibly heavy even though the engine made a bit more than the 12.5bhp it was allowed for learners.

Is my memory playing tricks on me or did this actually exist?


Dunno. At the moment, the categories are:

Arrow A1 / "learner": <= 125cc and <= 11kW. No weight / power to weight limits yet, but the 3rd Directive will define an A1 category with a maximum 0.1 kW/kg limit.
Arrow A2 / "standard": <= 25kW and 0.16 kW/kg.
Arrow A / "large" = anything else.


fatpies wrote:
I mean what would stop you from adding a shed load of weight to a bike just slightly over?


Nothing really, as long as its a part of the bike and not just slung on it.

MV(DL)R 1999 wrote:

“power to weight ratio”, in relation to a motor bicycle, means the ratio of the maximum net power output of the engine of the vehicle to its weight (including the weight of any side-car) with—
(a) a full supply of fuel in the tank,
(b) an adequate supply of other liquids needed for its propulsion, and
(c) no load other than its normal equipment, including loose tools;

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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
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Okeydokey
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PostPosted: 17:19 - 24 Oct 2011    Post subject: Reply with quote

All the above is good enough for me and my cavalier approach to life, disrespect for authority, and very shallow pockets.
Many thanks all!

Burgervan it is then Laughing
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