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Old 06-02-2010, 04:50 PM   #1
LaPorte OP
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Hyperpro Fork Springs

I have ordered a set of Hyperpro fork springs for my F800 GS. So today I was looking to see what tools I need to change the springs. Looks like the front brake calipers have Torx bolts which will require female Torx sockets to remove them. Anyone know what size the female socket is, E-what ?

Thanks

LaPorte
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LaPorte screwed with this post 06-02-2010 at 05:26 PM
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Old 06-02-2010, 05:00 PM   #2
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Quote:
Originally Posted by LaPorte
I have ordered a set of Hyperpro fork springs. So today I was looking to see what tools I need to change the springs. Looks like the front brake calipers have Torx bolts which will require female Torx sockets to remove them. Anyone know what size the female socket is, E-what ?

Thanks

LaPorte
There are only 3 sizes used on the bike IIRC. E8 (shift lever bolt), E10 (handlebar clamps), and E12 (brake calipers). I may be wrong but if that's the case I'm sure I'll be corrected.

The ghetto fabulous way (which I have used a few times) is to just use an adjustable wrench on them. If you're careful you won't do too much damage to the bolts, but obviously that's not an ideal solution.
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Old 06-02-2010, 09:50 PM   #3
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Get the proper socket. The re-tightening torque for the calipers is CRITICAL. Too loose the bolts will loosen and fall off. Too tight will damage the mount threads and fastener. The Torque for the front caliper bolts is 38 NM (28 Ft/lb) dry and clean. You won't be able to do this with an adjustable wrench.

For something this important I suggest using the correct tools or have someone do this for you. You really don't want to cause problems with the brakes
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Old 06-03-2010, 06:30 AM   #4
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As an added help, check out this:

http://www.advrider.com/forums/showp...&postcount=265

Video walkthrough for taking the forks off. Though he's replacing the cartridges, you'll be doing basically the same thing.

Good luck, let us know how you like them!
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Old 06-03-2010, 07:01 AM   #5
zaner32
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Quote:
Originally Posted by LaPorte
I have ordered a set of Hyperpro fork springs for my F800 GS. So today I was looking to see what tools I need to change the springs. Looks like the front brake calipers have Torx bolts which will require female Torx sockets to remove them. Anyone know what size the female socket is, E-what ?

Thanks

LaPorte
Proper size torx is E-12.

Axle torque 30Nm
Axle pinch bolts torque 19Nm
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Old 06-03-2010, 07:57 AM   #6
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Yup.

Front Axle Bolt: 30Nm
Front Brake Caliper Bolts: 38Nm
Plastic Fork Guards/Fender Bolts: 4Nm
Top & Bottom Triple Tree Clamp Bolts: 19Nm
Fork Tube Covers: 20Nm
Damping Rod Locknut to Fork Tube Cover: 20Nm

No thread locker anywhere. Only clean and dry threads.
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Old 06-03-2010, 08:03 AM   #7
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Also, get one of these babies for getting at the damping rod locknut:

Park Tool Cone Wrench. They're flat enough to fit in between the spring coils. You'll need 13mm:



http://www.biketiresdirect.com/pptcw...nch_set/pp.htm
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Old 06-03-2010, 08:09 AM   #8
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Thank you all for the information. I got the answer to my question ++++++++++++++++.

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Old 06-03-2010, 08:40 AM   #9
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That link I posted is for a cone wrench kit... oops. All you need is a single 13mm:

http://www.amazon.com/Park-Tool-PT-0.../dp/B001B6IQUI
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Old 06-03-2010, 08:57 AM   #10
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Quote:
Originally Posted by Pomo
There are only 3 sizes used on the bike IIRC. E8 (shift lever bolt), E10 (handlebar clamps), and E12 (brake calipers). I may be wrong but if that's the case I'm sure I'll be corrected.
An 8mm socket works well on the E10 handlebar bolts.

But my solution (which I also did on my R12GS) was to replace the E-Torx bolts with Allen-head bolts. Well, the shifter and handlebar bolts anyway, for the brake calipers I used conventional bolts (17mm heads, in my case). That makes my tool roll smaller as I already need the Allen head sockets and the 17mm wrench.
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Old 06-03-2010, 09:33 AM   #11
tmex
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Quote:
Originally Posted by LaPorte
I have ordered a set of Hyperpro fork springs for my F800 GS. So today I was looking to see what tools I need to change the springs. Looks like the front brake calipers have Torx bolts which will require female Torx sockets to remove them. Anyone know what size the female socket is, E-what ?

Thanks

LaPorte
While it is true that the front caliper bolts require a female torx socket to remove, you do not need to remove the calipers to change the fork springs.

BTW, you should stop being a cheap bastard and buy a whole set of torx sockets.
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Old 06-03-2010, 02:46 PM   #12
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Quote:
Originally Posted by tmex
While it is true that the front caliper bolts require a female torx socket to remove, you do not need to remove the calipers to change the fork springs.

BTW, you should stop being a cheap bastard and buy a whole set of torx sockets.
tmex
Cheap bastard, cheap bastard how can you say that, I just wanted to borrow the E-12 socket for a few minutes. I was going to give it back just as soon as I was done with it. Hell if you want, you can borrow my Kragen 6", fully adjustable wench any time you want. I even have a piece of pipe to slip on the handle to get more leverage for those tight suckers.

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Old 06-04-2010, 08:58 AM   #13
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Quote:
Originally Posted by LaPorte
tmex
Cheap bastard, cheap bastard how can you say that, I just wanted to borrow the E-12 socket for a few minutes. I was going to give it back just as soon as I was done with it. Hell if you want, you can borrow my Kragen 6", fully adjustable wench any time you want. I even have a piece of pipe to slip on the handle to get more leverage for those tight suckers.

LaPorte
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Old 06-04-2010, 09:01 AM   #14
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Quote:
Originally Posted by LaPorte
...Hell if you want, you can borrow my Kragen 6", fully adjustable wench any time you want. I even have a piece of pipe to slip on the handle to get more leverage for those tight suckers.
Fully adjustable wenches are surely the best!
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Old 06-06-2010, 09:27 PM   #15
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Hey LaPorte, I'd love to try out your 800 once you get the springs in to compare the difference. What weight springs did you get? (stockers are .44 I think)
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