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PostPosted: Mon Dec 24, 2012 9:18 am 
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Joined: Tue Dec 28, 2004 9:03 am
Posts: 334
Location: Nederland
Got my new bike, it's a Cannondale Supersix Evo with Sram Red compact crank. I want to replace the crank with a FSA 130mm bcd. One problem i can't remove the 10mm hex bolts. There is no movement when I push with all my weight on the hex key. I do start at the non drive side. What am I doing wrong?

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Posted: Mon Dec 24, 2012 9:18 am 


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PostPosted: Mon Dec 24, 2012 9:23 am 
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Joined: Wed Jul 08, 2009 9:19 pm
Posts: 576
Get a breaker bar and make it happen. you can strap the other arm to the chain stay if you need more support.

Some kid in China is loosing their job!


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PostPosted: Mon Dec 24, 2012 9:36 am 
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Joined: Sun Nov 13, 2011 6:00 am
Posts: 450
I removed a set of these Sram cranks today to install a FSA K-force SRM. These loosened via the Drive side 10mm Hex key. Opposite to the arrow in the photo.

Image

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PostPosted: Mon Dec 24, 2012 9:44 am 
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Joined: Mon May 25, 2009 9:34 am
Posts: 423
Location: Melb, Australia
I had this problem the other day while stripping down my old bike. The solution was someone stronger than me!

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PostPosted: Mon Dec 24, 2012 2:25 pm 
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Shop Wrench

Joined: Sun Sep 05, 2010 9:31 am
Posts: 164
Location: Belgian border
Make sure you you do it on the right side, some cranks and model years are on drive side, others on non-drive.
Remember, lefty loosy, righty tighty. So in this case opposite direction of the arrow on the crank bolt.

Position the crank and hex key close together: hex key at 7 o clock, crank arm at 5 o clock and push them together with all your strength. This gives you the best torque.

When reassembling remember to torque that bolt down hard again. Sram crank bolts have a tendency to work themselves loose if not bolted down to the right torque. 48-54 Nm is a lot!


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PostPosted: Mon Dec 24, 2012 4:05 pm 
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Shop Owner

Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
Yup, you're on the wrong side for your crank. The one you're trying to turn probably says, "do not remove".


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PostPosted: Tue Dec 25, 2012 9:33 am 
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Joined: Tue Dec 28, 2004 9:03 am
Posts: 334
Location: Nederland
Tanx for the tips. This was what make it happen to come loose.

Position the crank and hex key close together: hex key at 7 o clock, crank arm at 5 o clock and push them together with all your strength. This gives you the best torque.

Many tanx Roselend.

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Posted: Tue Dec 25, 2012 9:33 am 


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