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Old 13-01-07, 06:18 PM   #21
tygaboy
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Massive amounts of analysis go into the design of any suspension. Look at the RC-51, as an example. Both HRC and folks like Dan Kyle racing design replacement linkage components to alter the rear linkage to do things like improve traction characteristics - to noticeable improvement. These are not massive sized changes.
Do a search for Tony Foale. He sells a suspension design/anaylsis software product. I purchased this package to analyse the changes that came with putting the RC30 swing arm on my SV. I needed a significantly different spring rate and valving curve to 'make it work'. You'd be shocked (pun intended) to learn how big a difference a little change can make.

I'll offer this: You are at risk of unknown behavior/results when you mix parts from one bike with another - particularly suspension parts.

The linkage rates are different, the shocks (regardless of the budget to which they are built - are designed to 'work' with that linkage ratio, etc. For example, you may end up with a mix that has too steep a rising rate for the shock which causes the suspension to get deeper into the valving than is originally desired and cause you to 'all of a sudden like' have a very stiff rear suspension. Not the sort of thing you want to find out when you're cranked over and hit an unseen bump.

Yes, I know were talking degrees here and folks like Mr. Rossi and Mr. Hayden are well ahead of us in their ability to detect a 'hey, that's not right' setting but the FACT remains:
You risk 'negative impact' to your safety (and others) when you mess with anything that impacts your ability to control your motorcycle. Certainly there are positive impacts as well.
Just because a part can be made to fit doesn't mean it should be made to fit. All I'm saying is that YOU ARE RESPONSIIBLE FOR KNOWING that what you're up to is moving the meter in the desired direction.
*steps off soapbox*
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Old 13-01-07, 06:27 PM   #22
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Thats what, umm, I was, erm trying to say in, umm, a roundaboutish kind of way sort of thing


If you cut thru all the scenarios and things I was essentially right. WOO-HOO
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Old 13-01-07, 06:37 PM   #23
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Quote:
Originally Posted by SV650Racer
Blue - oh yes steve rode a one off in powerbikes in 2002 on a blade - god that bike was awful. After blowing its clutch apart and eating its gearbox at that meeting it was soon sold on!. He wasnt very quick on that at all..that model blade was hardly ever seen racing..for a few reasons why we now know!! he then saw sense and got a minitwin! and then had a relapse again last year but at least he bought a Suzuki this time for the bigger stuff..
Now that's not strictly true is it .... He raced a rather sexy GSXR1000 in 2004 too ... I beat him in several Powerbike races!! ... admittedly he beat me in a few too ... but I beat him more than he beat me ... and I was on a 600, so must have been giving away what 50 horse? to him!!!

Northy - Thankyou for you r generous offer ... if it is totally shot then it'll cost what about a ton-ton twenty to get serviced/rebuilt?? At that point I'd rather put the rest in and get a new one (that I get to keep ).

Oh and I don't need selling on the fact of how good Ohlins shocks are ... I raced on them for years ... but I also know that the ZX636 shock is good enough for what I want on this bike and a definite improvement over the SV shock. I get good tyre wear and at the pace I am using it at, no scary rear-end moments either. The rear tyre not chunking is good indicator that the suspension is working and set up correctly.

Quote:
Originally Posted by Bellerophon
Thats what, umm, I was, erm trying to say in, umm, a roundaboutish kind of way sort of thing


If you cut thru all the scenarios and things I was essentially right. WOO-HOO
I feel quite insulted that you and tygaboy without even knowing me PRESUME that I wouldn't know if 'summin was up' (i.e that I had a total missmatch) way before it got to the point things were going horribly wrong!! :P ...

If I put it on and it wasn't working how I desired, even after messing with the adjusters then I'd ditch it ... the standard shock is so poor even a non-optimal usage of a better shock gives better results
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Old 13-01-07, 07:24 PM   #24
northwind
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Yeah, something like that's probably about what I'd expect... But since it'll cost me that do do anyway I was thinking we could split it or something
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Old 13-01-07, 07:33 PM   #25
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Quote:
Originally Posted by tygaboy
Massive amounts of analysis go into the design of any suspension. Look at the RC-51, as an example. Both HRC and folks like Dan Kyle racing design replacement linkage components to alter the rear linkage to do things like improve traction characteristics - to noticeable improvement. These are not massive sized changes.
Yep, but then the RC51 comes from the factory with extremely good suspension. The SV's spec is set by budget not by design. The exact same forks are used in more than one Suzuki model- the Bandit 6 weighs considerably more than the SV, has different suspension geometry, different weight distribution and most would say a different application- so clearly the suspension's not perfect for one or the other.

The fact is, the SV suspension's cheap and nasty. The forks have more in common with door closing mechanisms than with modern suspension, and the rear's basically misspecced for the average british or American rider. I shudder when I hear about 200 pound riders on stock SVs... You can make huge changes to it without incurring any negative results, because you're not shooting for perfection- just improvement. The 636 shock swap's very far from perfect, but for most of us it's further from dreadful than the stock unit
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Old 13-01-07, 08:49 PM   #26
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Originally Posted by northwind
... The 636 shock swap's very far from perfect, but for most of us it's further from dreadful than the stock unit
At least somone knows where I am coming from with this

If I get into minitwins (i.e. do more than a round or two) then I'd be after a race shock, but to be honest for trackdaying the ZX option is fine ... I mean jez, I am running 2nd hand tyres .... somone else has deemed them too knackerd to use on their bike ... its not like the bike is ever going to get full benefit from a rear shock if I am still using sha66ed tyres!!! For trackdaying I just don't need them few tenths/seconds that a race shock and new tyres gives ... so am choosing to keep the money in the kitty .. for ... well more trackdaying!?! .... Thanks again for the offer, but I'll pass ... why are you not prepared to sell it if you are not using it?
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Old 13-01-07, 09:24 PM   #27
21QUEST
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Jeez Blue, you sound like a cheap date .

Word on the street is, a guy just came into some money. You tight git



Ben
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Blue, mate, having read a lot of your stuff I'd say 'in your head' is unknown territory for most of us
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Old 13-01-07, 09:57 PM   #28
Blue_SV650S
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Originally Posted by 21QUEST
Jeez Blue, you sound like a cheap date .

Word on the street is, a guy just came into some money. You tight git



Ben
Yes I have the money to buy an Ohlins shock if I wanted (I could buy 10 of them if I wanted ) ... but that isn't the point ... BTW I haven't 'come into' any money, it was my money all along .... they were shares I had and I chose to sell them at this time

I am not a rich man (far from it), and therefore I try to allocate what I have in the wisest way so it goes the furthest and I get the most benefit from it ... at the end of the day remember my budget means that I have crash damaged curvys that I got cheap and spent time resurrecting and making the best of myself by sourcing 2nd hand parts ... not the latest K7 fully tricked out by Crescent Suzuki!!!

If I was rich I wouldn't have to make any decisions, I'd have the best and I'd have it all Oh and rich people don't stay rich for very long if they spend money willy nilly

I try and do the best I can with what I have ... surely that is only logic, whats the point in spending £'000s tricking my SVs out then having no cash to actually use them? Or do anything else extra curricula with my life??? My cost-benefit analysis says that an Ohlins shock isn't worth the investment at this time (I might at a future date if some of the variables change).

I have the cash yes, so I am being tight here??? perhaps??? you might see it like that?? as may others?? ... But the thinking man would see it as logical!!
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Old 13-01-07, 10:17 PM   #29
21QUEST
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Quote:
Originally Posted by Blue_SV650S
Quote:
Originally Posted by 21QUEST
Jeez Blue, you sound like a cheap date .

Word on the street is, a guy just came into some money. You tight git



Ben
Bluey stuff ....
OMG I wasn't expecting that . It's all good man. I like the way you think actually. If you bottled it I'll buy one .



Ben



ps: I dare you to buy four(not ten) Ohlins shocks and since you only have three SV650s I'll make sure the fourth doesn't go to waste
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Blue, mate, having read a lot of your stuff I'd say 'in your head' is unknown territory for most of us
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Old 13-01-07, 10:35 PM   #30
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Quote:
Originally Posted by 21QUEST
....
In a way I do 'bottle it' and sell it ... I make my living from the way I think!! yes, yes, bearing in mind the quality of output, I doubt it is VFM!!

As for blagging a shock ... lol, now think about it I am struggling to justify the expense for my own trackbike/s, I'd never be able to justify it for my roadbike (that I only use for commuting), let alone a spare Nice try though
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