Ohlin fork springs. On 03 954 - Honda Motorcycles - FireBlades.org
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post #1 of 15 Old 09-15-2004, 2:10 PM Thread Starter
 
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Ohlin fork springs. On 03 954

Ok after doing alot of reading, I am thinking on replacing my stock fork springs with ohlins. From what I can tell the lengh should be the same and I wont need to cut a new spacer. I am also thining on revalving with either Ohlins or Racetek gold valves. Any insight would be great. I am 5'11" and 193lbs.

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post #2 of 15 Old 09-15-2004, 2:21 PM
 
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Re: Ohlin fork springs. On 03 954

go for it. 98kgr here (must be around 210 pounds) I placed the 0,90 Ohlins and handling + braking changed substantially. No dramas any more, you can use the full potential of the bike.

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post #3 of 15 Old 09-15-2004, 2:32 PM
 
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Re: Ohlin fork springs. On 03 954

At your weight (I assume that is net weight and doesn't include your riding gear), I would go for 1.0 KG springs if you run at the track or .95 KG springs if you run primarily street.

Don't bother with the gold valves, as they are made of brass and besides polluting your suspension fluid with small brass particles, they wear out pretty quickly. Dan Kyle at Kyle USA does a great job with the OEM valving and a full polish job on the tubes to get rid of the tremendous amount of stiction the forks have. He also does Ohlins valves, but unless you are racing or just have money to burn, I would go for the reworked Showa valves.
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post #4 of 15 Old 09-15-2004, 2:55 PM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by abtech
Dan Kyle at Kyle USA does a great job with the OEM valving and a full polish job on the tubes to get rid of the tremendous amount of stiction the forks have.
I don't mean to be a , but this is a related quesion. Will the polishing that Dan does on the forks, take out small scratches that may be causing fork oil leaks?

Last edited by Rios929; 09-15-2004 at 2:56 PM.
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post #5 of 15 Old 09-15-2004, 3:06 PM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by abtech
At your weight (I assume that is net weight and doesn't include your riding gear), I would go for 1.0 KG springs if you run at the track or .95 KG springs if you run primarily street.

Don't bother with the gold valves, as they are made of brass and besides polluting your suspension fluid with small brass particles, they wear out pretty quickly. Dan Kyle at Kyle USA does a great job with the OEM valving and a full polish job on the tubes to get rid of the tremendous amount of stiction the forks have. He also does Ohlins valves, but unless you are racing or just have money to burn, I would go for the reworked Showa valves.
Abtech, so if i have the gold valves in my forks now how concerned should i be with polluted fluid, whats the time frame of the break down of the valves. I ask cause ive never heard that and my Suspension guy has never mentioned anything like that to me before...

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post #6 of 15 Old 09-15-2004, 4:30 PM
 
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Re: Ohlin fork springs. On 03 954

The last set of gold valved forks I took apart had turned the fluid brown (not unusual by itself) until closer inspections revealed that it was METALLIC brown. The valves were installed at the beginning of an 8 race season (with Friday open practice days) and by the 7th weekend, the damping had gone off. When I looked at the vlaves, it was evident that they were slightly rounded and showed shiny wear spots both at the orifice faces and where they contacted other internal surfaces. After dissassembly I did some very non-scientific testing (a screwdriver scored across the valve face with light hand pressure) and wasn't surprised to see that the brass was relatively soft and left material on the screwdriver tip.

Several years ago when cartridge forks were a novelty, the Gold Valves offered a step up in performance. That time has long since passed and current OEM products are nearly an order of magnitude better in terms of materials and tolerances. The biggest thing about ANY revalving is changing the flow rate at high speed which can easily be accomplished with the OEM internals.

Last edited by abtech; 09-15-2004 at 4:31 PM.
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post #7 of 15 Old 09-17-2004, 9:54 PM
 
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Re: Ohlin fork springs. On 03 954

what about the traxxion axion valves, any problems with these???

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post #8 of 15 Old 09-18-2004, 10:55 AM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by vertical954rr
what about the traxxion axion valves, any problems with these???
I think the general consensus on those is that they're worse than the Racetech stuff. Really, the best, most cost effective thing to do is to send them to Dan Kyle and let him put in the correct spring for your weight, revalve the stockers, and polish. After he massages them, they work about 90% was well as Ohlins forks, according to the guys here that have used both.
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post #9 of 15 Old 09-18-2004, 11:03 AM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by vertical954rr
what about the traxxion axion valves, any problems with these???
There are people who swear by them, while there are just as many that swear at them. The orifice size and shape on the Axions doesn't seem optimum for most non-Suzuki applications and the casting/machining is very crude compared to the Showa or Ohlins available for the newer Hondas.
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post #10 of 15 Old 09-18-2004, 12:47 PM Thread Starter
 
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Re: Ohlin fork springs. On 03 954

I spoke with Dan and am going to be shipping them after the 25&26 track days I am scheduled for. I had asked Dan if I should have him put in the Ohlin valves during the revalving and he basicly said there was no advantage, so I will be getting ne Ohlins springs and Dans magic. Then the delima a new Ohlins rear or new Tires for the car... (as long as the snow stays away I know what I would rather do)
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post #11 of 15 Old 09-18-2004, 8:08 PM
 
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Re: Ohlin fork springs. On 03 954

does dan kyle remove the honda hmas damping sysytem?

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post #12 of 15 Old 09-18-2004, 8:12 PM
 
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Re: Ohlin fork springs. On 03 954

what does he charge to do a fork job with ohlin springs & valves?

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post #13 of 15 Old 09-19-2004, 1:10 AM
 
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Re: Ohlin fork springs. On 03 954

does ohlins valves have the same problem as racetech??

03' Blk/Tit CBR 954rr, Erion full system, PCIIIr, Scott's Damper, Vortex Frame Sliders, Galfer SS Lines, Rear Seat Cowl, flapper pinned.

Last edited by vertical954rr; 10-28-2007 at 1:38 PM.
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post #14 of 15 Old 09-19-2004, 8:11 AM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by vertical954rr
does ohlins valves have the same problem as racetech??
No, they aren't made of brass.
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post #15 of 15 Old 09-19-2004, 8:12 AM
 
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Re: Ohlin fork springs. On 03 954

Quote:
Originally Posted by vertical954rr
what does he charge to do a fork job with ohlin springs & valves?
, Call him and ask . . .
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