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Old 04-23-2013, 11:56 AM   #46
Ras Thurlo OP
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Location: Hillcountry, Italy
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WP50 settings

I got Hyperpro to restore/tune my WP50s forks, through Boxer Toko.

I re-checked the box and Hyperpro did actually include a sheet of remarks of what they had done.

These were the remarks:

- Spring number 1407

- Length 460mm

- Spring Rate 4,76

- Spring rate after 225mm stroke 6,66

- Oil/ 5 Level 160mm

- Max stroke spring 302,5mm

- Max stroke fork 280mm


Can someone pls help translate this.

FYI - I asked for a 75% dirt set-up for a 90-95kg rider and no pillion

Just from sitting on the bike the front feels relatively stiffer than the rear and with less sag. But have not ridden bike yet
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Old 04-23-2013, 02:16 PM   #47
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Quote:
Originally Posted by Ras Thurlo View Post
Just from sitting on the bike the front feels relatively stiffer than the rear and with less sag. But have not ridden bike yet
To check the balance of the bike you should push on the tank just in front of the saddle.
The forks will have more stick slip than the rear so you should help the front get moving.
How much sag has the front, and the back?
What springrate is on the rear shock?
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Old 04-23-2013, 02:31 PM   #48
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I recently had my 4357 forks rebuilt and they listed the air space rather than the oil level. I think it has to do with the amount of air acting as a spring and the oil is really just there for damping. The forks feel more plush, but it's been raining and snowing almost every day the last couple weeks so haven't had the bike out yet.

I know that's not specifically what you are asking about, but maybe take the top cap off and measure the the length from oil to top with a stick. Might be good to know.
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Old 04-25-2013, 02:58 AM   #49
Ras Thurlo OP
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The initial spring rate of 4.76 is quoted in N/mm. An internet translator has given me 0.485 kg/mm as the equivalent measurement.

The spring rate rises to 6.66 N/mm (0.68 kg/mm) after 225mm

Mostly on this site spring rates are quoted in kg/mm, were I perceived a consensus bandwidth of 0.50-0.70 kg/mm for a bike like this.

This would mean that they set this up to straddle that range.

I would instinctually have preferred linear springs for dirt, but progressives may make sense for a heavy bike


converter:

www.hraefn.net/projects/spring_rates.php

Ras Thurlo screwed with this post 04-27-2013 at 04:06 PM
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Old 04-25-2013, 10:16 AM   #50
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update

getting there slowly

current roadblocks are a lengthened cables to deal with the giraffe risers and oil cooler brackets

still currently on the 43l tank, but will try with 35l TAG as well

the Ontic/Solo Lobo gaiters look great btw

[IMG] photo IMG_0166_zpsece7ee69.jpg[/IMG]




I like the look of naked bikes, but with these risers I think you need the screen to stop it looking like an BA insect

[IMG] photo IMG_0165_zps39d05d93.jpg[/IMG]


[IMG] photo IMG_0170_zps377b9f58.jpg[/IMG]

Ras Thurlo screwed with this post 04-27-2013 at 04:57 PM
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Old 04-25-2013, 10:39 AM   #51
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Quote:
Originally Posted by Ras Thurlo View Post
current roadblocks are a lengthened clutch cable to deal with the giraffe risers and oil cooler brackets
What about R80RT cables?


Quote:
Originally Posted by Ras Thurlo View Post
the solo lobo gaiters look great btw
really Ontic gaiters!
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your bike is suitably dirty. Well done.
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Old 04-27-2013, 04:50 PM   #52
Ras Thurlo OP
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going minimalist in the cockpit

look basically no offset on the ktm triples

[IMG] photo IMG_0171_zpsaf91535b.jpg[/IMG]

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Old 04-29-2013, 03:13 PM   #53
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with TAG 35l tank (still unpainted):

[IMG] photo IMG_0192_zps8300d94e.jpg[/IMG]

after the HPN it feels like a pea-shooter and you can now actually see the BA airfilter

Surprisingly it looks like the seat fits both tanks

Ras Thurlo screwed with this post 04-29-2013 at 03:37 PM
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Old 04-29-2013, 03:15 PM   #54
Ras Thurlo OP
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Quote:
Originally Posted by SOLO LOBO View Post
What about R80RT cables?
great advice, with a bit of route-planning the RT clutch cables worked out great on the giraffe risers

already had long brake line, so did not have the worry about that
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Old 04-29-2013, 03:34 PM   #55
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brakes

Fitted 320mm disk:

[IMG] photo IMG_0202_zps35d64a34.jpg[/IMG]


Its hard to tell from a photo, but there is v.little play room- either for the disk to fork, or for the calliper to spokes.

is that normal or is something FU?

[IMG] photo IMG_0200_zps7638ebe9.jpg[/IMG]
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Old 04-29-2013, 03:48 PM   #56
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I had to have material removed from the rear of my caliper bracket and a new axle spacer made on the same side.


Quote:
Originally Posted by Ras Thurlo View Post
Fitted 320mm disk:

[IMG] photo IMG_0202_zps35d64a34.jpg[/IMG]


Its hard to tell from a photo, but there is v.little play room- either for the disk to fork, or for the calliper to spokes.

is that normal or is something FU?

[IMG] photo IMG_0200_zps7638ebe9.jpg[/IMG]
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Old 04-29-2013, 03:48 PM   #57
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I have seen spokes touching the caliper on a same combo (wp50,HE 320 rotor) but that was because the bearings were bad. Be carefull mounting the HE disc they warp real easy.

I mounted a brembo 320 full floating rotor with diferent spacers. Still a tight fit but just enough room for it.
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Old 04-29-2013, 03:59 PM   #58
Ras Thurlo OP
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Quote:
Originally Posted by hardwaregrrl View Post
I had to have material removed from the rear of my caliper bracket and a new axle spacer made on the same side.

Quote:
Originally Posted by Prutser View Post
I have seen spokes touching the caliper on a same combo (wp50,HE 320 rotor) but that was because the bearings were bad. Be carefull mounting the HE disc they warp real easy.

I mounted a brembo 320 full floating rotor with diferent spacers. Still a tight fit but just enough room for it.

glad to hear that I am in good company


my set up fits, but boy is it tight in there

Ras Thurlo screwed with this post 04-30-2013 at 01:13 AM
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Old 04-29-2013, 04:13 PM   #59
Ras Thurlo OP
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Jason Bourne

Quote:
Originally Posted by Dmaster View Post
What springrate is on the rear shock?
do these numbers mean anything?

[IMG] photo IMG_0206_zpsba911c50.jpg[/IMG]
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Old 04-29-2013, 04:28 PM   #60
Airhead Wrangler
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Quote:
Originally Posted by Ras Thurlo View Post
do these numbers mean anything?

[IMG][/IMG]
If I had to guess, I'd say 42N/mm spring rate and 280mm free length.
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