Progressive front fork springs??? - Wrist Twisters
 
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post #1 of 17 Old 05-04-2012, 11:17 PM Thread Starter
Milites Gregarius
 
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Progressive front fork springs???

Any inputs guys... sadly, I've been riding with a blown fork seal for almost 3yrs now! Recently the other finally blew - been thinking of adjustable but for the cost this might be a cheaper way to go, yet see a major change in performance over stock.

http://www.ebay.com/itm/02-03-HONDA-...#ht_1068wt_913

2002 cb919
- pretty much stock... <-- haha
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post #2 of 17 Old 05-05-2012, 01:42 AM
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you have progressive springs now, perhaps just not the right rate, dont now what you weigh.
But if you have been riding for 3 years with a blown fork seal, performance is probably not a big issue for you.
Fixing that and putting the right amount of oil back in would be a good start

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post #3 of 17 Old 05-05-2012, 04:36 AM
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Contact LDH to get the proper spring rate for your weight.

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post #4 of 17 Old 05-05-2012, 06:42 AM
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Straight rate is the only way to go............

https://www.wristtwisters.com/forums/...ngs-25624.html

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post #5 of 17 Old 05-05-2012, 11:00 AM
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Quote:
Originally Posted by davehirt View Post
you have progressive springs now
More correctly, the stockers are dual rate springs with a one wind transition zone between the uncooked porridge and Jello zones.

Past that, single rate (linear) is the way to go.
Progressives go back to the 70s, the same era that air over kits came into being.
I sure don't want to go back to those days !
Progressive air springing over progressive springs with high installed preload, with the added air pressure loading up the fork seals for even more stiction.

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post #6 of 17 Old 05-05-2012, 11:38 AM Thread Starter
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Quote:
Originally Posted by davehirt View Post
you have progressive springs now, perhaps just not the right rate, dont now what you weigh.
But if you have been riding for 3 years with a blown fork seal, performance is probably not a big issue for you.
Fixing that and putting the right amount of oil back in would be a good start
Sure performance is huge... but being almost 40, I don't ride wheelie's down the highway or dumb shit anymore like that these days.

Already got seals on order.

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post #7 of 17 Old 05-05-2012, 12:12 PM
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Quote:
Originally Posted by pdx_luda View Post
Sure performance is huge... but being almost 40, I don't ride wheelie's down the highway or dumb shit anymore like that these days.

Already got seals on order.
that's not the kind of performance we're talking about here. we're referring to accurate chassis response and correct rider feel in a given situation which allows the rider to not only know the limits of their machine/skills, but more importantly be able to ride in a safe manner.

go with a straight spring rate. there is no comparison. for $50 more including shipping, you get a far superior product with far better results (wheelies not needed to experience said results).

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post #8 of 17 Old 05-05-2012, 12:19 PM Thread Starter
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haha

Honestly the only thing I have really noticed was a freakin' oil drop or 2 each time I park the bike... I can't even remember how the bike rode without a blown seal, sad eh?

Def will comment once back to normal regarding noticeable differences!

2002 cb919
- pretty much stock... <-- haha
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post #9 of 17 Old 05-06-2012, 12:57 PM
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Quote:
Originally Posted by rmb View Post
Contact LDH to get the proper spring rate for your weight.
I am interested who is LDH? I wouldn't mind tuning my suspension for my weight.

I also don't do wheelies but can appreciate quality (and well tuned) suspension setups.

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post #10 of 17 Old 05-06-2012, 02:42 PM
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Quote:
Originally Posted by StanBo View Post
I am interested who is LDH? I wouldn't mind tuning my suspension for my weight.

I also don't do wheelies but can appreciate quality (and well tuned) suspension setups.

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LDH is a moderator here that works at Kyle Racing in CA. They sell Ohlins suspension products and can get you what you need.

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post #11 of 17 Old 05-06-2012, 06:57 PM
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Quote:
Originally Posted by rmb View Post
LDH is a moderator here that works at Kyle Racing in CA. They sell Ohlins suspension products and can get you what you need.
LDH at Kyle Racing will take you from A - Z if you wish.
A is springs and oil.
B is Valve kits with preselected shim stack build kits.
C is doing the work for you.
Z would be replacement cartridges.

There are others you can go to.
BUT
None of the others seem to have 919 specific experience, and it has been quite evident.
Especially spring rates.
As a generalized comment, standard sheet and web selectors tend to call up too stiff a front and too soft a rear.

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post #12 of 17 Old 05-07-2012, 04:12 AM
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Would my 599 be a huge difference from a 919? I went riding all weekend and find that my tires are in need of changing.

I am a bit heavier then the previous rider so I will be adjusting my preload this week and riding around to see the difference.

Bike is a 2004 so I wouldn't mind going over and maintaining/upgrading the suspension.

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post #13 of 17 Old 05-07-2012, 04:12 AM
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Also thanks for the heads up guys. I am going to contact LDH to get the ball rolling.

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post #14 of 17 Old 05-07-2012, 04:42 AM
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I think it is not oil in your forks anymore, more like water with dirt...

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post #15 of 17 Old 05-07-2012, 06:36 AM
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Quote:
Originally Posted by StanBo View Post
Would my 599 be a huge difference from a 919? I went riding all weekend and find that my tires are in need of changing.

I am a bit heavier then the previous rider so I will be adjusting my preload this week and riding around to see the difference.

Bike is a 2004 so I wouldn't mind going over and maintaining/upgrading the suspension.

Sent from my T-Mobile G2 using Tapatalk 2
A 599 likely needs as much front end help as the 919 and who knows, maybe even more.

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post #16 of 17 Old 05-08-2012, 03:20 PM
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I will know more after I change out my tires. Right now I have a problem with the rear wanting to slide out when applying power to exit a turn while leaning some.

Current tires are old and dryrotted. So they are being replaced tonight.

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post #17 of 17 Old 06-01-2012, 06:21 AM Thread Starter
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Inflation sucks... this include OEM parts (no aftermarket springs)

1073274 O-RING (13.8X2.4) (91311-PH7-003) $1.93
717604 BOLT, FR. FORK (51454-MBW-D61) $36.71
714366 SPRING, FR. FORK (51401-MCZ-D11) $75.62
714778 SEAT, SPRING (51404-MR7-003) $12.70
716660 DAMPER, FR. (51430-MCZ-D11) $290.51
718092 SEAL SET, FR. FORK (51490-MCF-000) $29.50
715839 BUSH, GUIDE (51414-MAZ-751) $8.83
715911 BUSH, SLIDER (51415-MCF-003) $8.91
Sub Total: $464.72

Ref thread: https://www.wristtwisters.com/forums/...sted-4894.html

Maybe a set of F4i forks is the route I will take...

2002 cb919
- pretty much stock... <-- haha
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