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Offline bwaller

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GL1000 forks
« on: September 12, 2014, 07:48:13 PM »
Can anyone give me the assembled height of GL1000 forks? (top of tube to axle center with no weight on the forks)

Thanks,  Brent
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Offline brandEn

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Re: GL1000 forks
« Reply #1 on: September 12, 2014, 08:52:38 PM »
Just measured TAO sitting on the lift with no engine and not strapped down. Approximately 30 7/8" from top of the tube to center of axle. I have preload adjusters installed and progressive springs. Not sure if that matters.
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Offline MidnightLamp

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Re: GL1000 forks
« Reply #2 on: September 12, 2014, 09:11:19 PM »
Brent, keep in mind that the top triple on the GL is also a drop triple, and lowers the forks quite a bit. I just got the measurements for the same reason
from 70CB750 on here to compare to mine.

For this reason, I measure everything with respect to the bottom most portion of the neck, which on both the 76 GL-1000 and CB750's is basically inline with the top surface of the bottom triple tree. So if you take the distance from that to the centre of the axle while unloaded you get:

-532mm for the K0
-548mm for an F3 front end
-578mm for the GL-1000

Ends up with the GL front end being ~ 2" longer. I find that 1" under tubes + 1" slid up works for me and doesn't cause undue travel.

532mm for the K0 and 548 for the K3F with front wheel lifted of the ground and measured from the top of the bottom bracket to the center of the axle.
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Offline Blackfin5

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Re: GL1000 forks
« Reply #3 on: September 12, 2014, 11:01:59 PM »
Good info.   Thanks.  I will most likely go this route as well on my 750F1.
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Offline SOHC4 Cafe Racer Fan

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Re: GL1000 forks
« Reply #4 on: September 12, 2014, 11:26:06 PM »
For those wanting some adjustability, Rob aka Voxonda makes preload adjusters for the 37mm fork tubes allowing you to add more preload to your springs.
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Offline bwaller

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Re: GL1000 forks
« Reply #5 on: September 13, 2014, 02:59:23 AM »
Thanks fellas. I won't use the GL triple clamps anyway, so these forks are a tad long for what I need but do-able.

MidnightLamp, you can limit fork travel with a spacer under the damper rod if you'd like.

I should have asked what full travel is too? Anyone measure that?
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Offline JohnN

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Re: GL1000 forks
« Reply #6 on: September 13, 2014, 12:19:21 PM »
I measured 5-5/8" on my forks from a '76 GW.
John
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Offline bwaller

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Re: GL1000 forks
« Reply #7 on: September 13, 2014, 12:24:16 PM »
Thanks John.
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Offline JohnN

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Re: GL1000 forks
« Reply #8 on: September 14, 2014, 10:14:28 AM »
Brent:
 You're welcome! On a different subject, were you happy with the results when you increased the trail with the new triple tree?
John
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Offline bwaller

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Re: GL1000 forks
« Reply #9 on: September 14, 2014, 11:52:07 AM »
Yes John, the bike was rock solid, very well planted. Plus I told Denis Curtis it finally felt "neutral" into both left & right handers. There were a lot of things that changed to make this steering improvement happen, but it's a better motorcycle to ride.
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Offline brandEn

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Re: GL1000 forks
« Reply #10 on: September 14, 2014, 12:14:10 PM »
Did the measurement I gave you help at all? Just wondering if I took the wrong one.
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Offline bwaller

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Re: GL1000 forks
« Reply #11 on: September 14, 2014, 01:53:45 PM »
Yes it surely does help. I'd prefer shorter 38mm forks but haven't had any luck finding anything yet. The GL forks are still an option.
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Offline brandEn

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Re: GL1000 forks
« Reply #12 on: September 14, 2014, 02:46:23 PM »
Cool. Just an FYI the gl forks are 37mm.
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