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SRAD 600 on A2?

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johnnynapalms...
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Joined: 26 Apr 2016
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PostPosted: 07:39 - 26 Apr 2016    Post subject: SRAD 600 on A2? Reply with quote

Okay so I got a great quote for this bike, but then I was told by some other people (not by insurers) that whilst at rear wheel the bike is under 94bhp, at the crank its not. Should I just go with the insurance I got quoted, and be done with it? I really want this bike, and I have 1 year ncb on restricted er6f, I would obviously take the restrictor out on the gsxr, but I would have the restrictor certificate if needed. Does anyone know for sure if it's a legal a2 bike or not? And if not, how likely am I to get away with it for another year? Rolling Eyes
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davebike
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PostPosted: 09:50 - 26 Apr 2016    Post subject: Reply with quote

I think you find they go on manufactures quoted power as to weather restriction is allowed
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M.C
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PostPosted: 10:17 - 26 Apr 2016    Post subject: Reply with quote

Have a looksy at this: https://www.ebay.co.uk/itm/GSX-R-600-ALL-YEARS-Restrictor-Kit-35kW-46-6-46-9-47-bhp-DOES-NOT-EXIST-/221857735893?hash=item33a7c064d5:g:Zn4AAOSwd4tUE1Cf Very Happy

Someone's trying to sell them on eBay tho'. Maybe try to get some official manufacturer figures?

As for getting caught (unrestricted) depends on whether you crash or get stopped by a clued up copper. With only a year to go I'd ask if you really can't wait. I know a restricted er6 isn't going to be much fun, maybe look at something else.
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weasley
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PostPosted: 12:02 - 26 Apr 2016    Post subject: Reply with quote

Isn't the SRAD the bike Roberborg has edit-warred on Wikipedia about in terms of who thinks what about its "official" power?

My opinion is that it is not A2-restrictable, despite how BADLY people want it to be. The argument about rear wheel vs crankshaft power is one created by the ambiguity of the wording regarding 'power', but in the real world, power at the rear wheel is meaningless pub-talk and is not the intent of the regulations.
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wr6133
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PostPosted: 18:35 - 26 Apr 2016    Post subject: Reply with quote

weasley wrote:
The argument about rear wheel vs crankshaft power is one created by the ambiguity of the wording regarding 'power'


Ages ago (possibly on this forum/possibly by me) the wording was quoted from the euro bollocks and it was IIRC "net engine power".... to me that would mean what the manufacturer declared at the crank.
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Pete.
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PostPosted: 18:42 - 26 Apr 2016    Post subject: Reply with quote

weasley wrote:
Isn't the SRAD the bike Roberborg has edit-warred on Wikipedia about in terms of who thinks what about its "official" power?

My opinion is that it is not A2-restrictable, despite how BADLY people want it to be. The argument about rear wheel vs crankshaft power is one created by the ambiguity of the wording regarding 'power', but in the real world, power at the rear wheel is meaningless pub-talk and is not the intent of the regulations.


WUT? In the real world, power at the rear wheel is all that matters.
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Kickstart
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PostPosted: 18:56 - 26 Apr 2016    Post subject: Reply with quote

wr6133 wrote:

Ages ago (possibly on this forum/possibly by me) the wording was quoted from the euro bollocks and it was IIRC "net engine power".... to me that would mean what the manufacturer declared at the crank.


Yep, 'net power output' is quoted for the European regulations to be used for legislative purposes

All the best

Katy
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stevo as b4
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PostPosted: 19:15 - 26 Apr 2016    Post subject: Reply with quote

I fucking hate magazines they are all shit and every stupid twat of a journalist often says crap like 'the manufacturer makes wildly optimistic and exaggerated bhp figures because the xyz750 makes a real/true/honest xx bhp at the rear wheel.

Sure bhp at the wheel is a good comparison tool for before and after tuning mods done to a specific bike on a particular dyno. But I dont think it means much otherwise and it doesn't tell you what the motor can put out in controlled ideal conditions at the crankshaft.

They don't sell cars based on bhp at the wheels figures, I don't see why bikers should care much about bhp at the wheels either?
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Scythe
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PostPosted: 19:22 - 26 Apr 2016    Post subject: Reply with quote

stevo as b4 wrote:
I fucking hate magazines they are all shit and every stupid twat of a journalist often says crap like 'the manufacturer makes wildly optimistic and exaggerated bhp figures because the xyz750 makes a real/true/honest xx bhp at the rear wheel.

Sure bhp at the wheel is a good comparison tool for before and after tuning mods done to a specific bike on a particular dyno. But I dont think it means much otherwise and it doesn't tell you what the motor can put out in controlled ideal conditions at the crankshaft.

They don't sell cars based on bhp at the wheels figures, I don't see why bikers should care much about bhp at the wheels either?


bhp is the power measured at the crank. whp is measured at the wheel.

Manufacturers quote their net power (bhp) because the values are higher and sounds better.

Wheel horsepower is the power you actually get at the wheel, which is less as a result of losses in your gearbox, drivetrain, bearings etc.

So who actually cares what your engine puts out when it's on a test bed? You'll never see that power in reality.
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stevo as b4
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PostPosted: 19:31 - 26 Apr 2016    Post subject: Reply with quote

Thanks for the education lesson on how engines work and transmit power. Thumbs Up
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Rogerborg
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PostPosted: 21:34 - 26 Apr 2016    Post subject: Reply with quote

Pete. wrote:
In the real world, power at the rear wheel is all that matters.

Legislators don't care about the real world. The definition is indeed:

“maximum net power output”, in relation to an engine, means the maximum net power output measured under full engine load;

weasley wrote:
Isn't the SRAD the bike Roberborg has edit-warred on Wikipedia about in terms of who thinks what about its "official" power?

Yes, there's an editard sperg who keeps deliberately removing the vital information that the 68.2–69.4 kW figure is rear wheel horsepower, not net engine power. Just follow the link and read the source, it's not rocket science.
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