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| Okeydokey |
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 Okeydokey Scooby Slapper

Joined: 13 Sep 2011 Karma :     
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| Efes123 |
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 Efes123 World Chat Champion

Joined: 08 Sep 2011 Karma :   
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 07:09 - 24 Oct 2011 Post subject: |
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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. ____________________ 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
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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 Wafer_Thin_Ham Super Spammer

Joined: 18 Nov 2005 Karma :    
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 07:46 - 24 Oct 2011 Post subject: |
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| 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. ____________________ 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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 P.addy Formerly known as P.
Joined: 14 Feb 2008 Karma :  
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 Posted: 09:32 - 24 Oct 2011 Post subject: |
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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  |
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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| P.addy |
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 P.addy Formerly known as P.
Joined: 14 Feb 2008 Karma :  
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 Posted: 12:16 - 24 Oct 2011 Post subject: |
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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.  |
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| Cadbury |
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 Cadbury Crazy Courier

Joined: 05 Oct 2011 Karma :  
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| fatpies |
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 fatpies World Chat Champion

Joined: 01 Mar 2011 Karma :   
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| The Shaggy D.A. |
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 The Shaggy D.A. Super Spammer

Joined: 12 Sep 2008 Karma :  
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 Posted: 13:39 - 24 Oct 2011 Post subject: |
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The Burgman 400 has been described as the "escort van of the bike world". I fancy one myself. ____________________ Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5 |
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| jimbothe |
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 jimbothe World Chat Champion

Joined: 29 Sep 2006 Karma :   
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 17:02 - 24 Oct 2011 Post subject: |
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| 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:
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.
A2 / "standard": <= 25kW and 0.16 kW/kg.
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; |
____________________ 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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 Okeydokey Scooby Slapper

Joined: 13 Sep 2011 Karma :     
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 Posted: 17:19 - 24 Oct 2011 Post subject: |
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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  ____________________ Knowledge is knowing a tomato is a fruit. Wisdom is not putting it in a fruitsalad!
YB100 v. Ford Sierra (1982 I came 2nd place) Honda H100S (Currently 0 - 0) CX500 Cafe project (me 1 - wife 0.... maybe!) |
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Old Thread Alert!
The last post was made 14 years, 124 days ago. Instead of replying here, would creating a new thread be more useful? |
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