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| kevingranger |
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 kevingranger Nova Slayer

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| Laura |
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 Laura Playboy Bunny

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| kevingranger |
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 kevingranger Nova Slayer

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| Dr Nick |
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 Dr Nick World Chat Champion

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| mr jamez |
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 mr jamez World Chat Champion

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| Phil. |
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 Phil. World Chat Champion

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| carvell |
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 carvell Scuttler

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| one1895 |
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 one1895 I liked BCF so much I made my own copy

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| Syfoon |
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 Syfoon TRUCK!!!

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| Kickstart |
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 Kickstart The Oracle

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| Phil. |
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 Phil. World Chat Champion

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| MarsBar |
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 MarsBar World Chat Champion

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| Kickstart |
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 Kickstart The Oracle

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| carvell |
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 carvell Scuttler

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| Kickstart |
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 Kickstart The Oracle

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| Git |
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 Git Brolly Dolly
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| MarJay |
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 MarJay But it's British!

Joined: 15 Sep 2003 Karma :     
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 Posted: 10:16 - 06 Feb 2004 Post subject: |
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You can't ride an RS on a 33bhp license when its full power because of the power to weight ratio aspect of that law!
As far as I know you can ride a restricted one on a CBT though.
I took my test on an NS125R with a full micron system and no-one said anything to me about it. In fact, the examiner was impressed that I looked after my bike. My instructor told me to wash my bike thoroughly before the test - afterwards I worked out why!  ____________________ British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another. |
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| 1cyl |
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 1cyl World Chat Champion

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| carvell |
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 carvell Scuttler

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| Kickstart |
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 Kickstart The Oracle

Joined: 04 Feb 2002 Karma :     
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 Posted: 11:06 - 06 Feb 2004 Post subject: |
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| MarJay wrote: | You can't ride an RS on a 33bhp license when its full power because of the power to weight ratio aspect of that law!
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Hi
True, but then the same applies to most bikes. The limit for a 33hp licence (25kW) is 0.16kW/kg, so to have the full amount of power it must weigh more than 156.25kg. The RS125 weighs in at 115kg (claimed), although it also only has about 28~29hp in reality. However it depends on whose claim for the weight you use, and whether you use dry weight or curb weight (after all, that would add around 12kg for the fuel, another 2~3kg for the oil and water, etc), and the chassis plate on the RS claims 140kg (I think, or it used to). If you take the true power figure to be 29hp (and I have not seen an Aprilia brochure claiming any hp figure for the RS125) and the weight to be 140kg (if I am remembering the chassis plate correctly) then it is legal in full power mode.
This power to weigh ratio would count out quite a few bike. The CCM R30 for example might not be restricted licence legal at 33hp as it weighs 137kg (claimed), and at the current rate it will only be a couple of years until a 33hp Fireblade would have too high a power to weight ratio if we use the dry weight.
All the best
Keith ____________________ Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing |
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| dainesefreak |
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 dainesefreak World Chat Champion

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| Bendy |
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 Bendy Mrs Sensible

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| 1cyl |
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 1cyl World Chat Champion

Joined: 04 Feb 2004 Karma :  
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 Posted: 11:10 - 06 Feb 2004 Post subject: |
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gotcha,
cos a 33bhp busa, and a 33bhp rs125, wouldn't finish exactly at the same time on a quater mile run would they?
yeah, and it looks pretty cool ____________________ Chase my Witch up, Catch my Snitch up.
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| Kickstart |
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 Kickstart The Oracle

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| dainesefreak |
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 dainesefreak World Chat Champion

Joined: 04 Apr 2003 Karma :   
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Old Thread Alert!
The last post was made 22 years, 262 days ago. Instead of replying here, would creating a new thread be more useful? |
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