Now you'll need a crank-puller, which is a device that will screw into that bolt hole while at the same time pushing against the spindle, causing the crank arm to come off. The mechanics of the device are sort of hard to explain in writing but fairly obvious in practice when you have one in front of you.
Once the non-drive side crank arm is off, the drive side portion of the crank is free. It may be slightly hard to get out, however, so gently (but with sufficient force) pull the drive side crank away from the frame. You'll be pulling the spindle out through the bottom bracket portion.
After you've pulled the crankset off the bike you'll need a bottom bracket tool to get the bottom bracket off your frame... when doing this, remember that the cups loosen clockwise on the drive side, and loosen counter-clockwise on the non-drive side. Start with the non-drive side. It's a pretty simple operation.
You should be able to pick up a crank puller and a BB tool at your bike shop for around 10-20 bucks each.
just turn the 8mm in the direction opposite the arrow on the crank near the bolt. the crank comes off automatically.
The other side might need to be banged out a big by hand.
Don't remove the 15mm hex... its the thing the makes the cranks come off by them selves.
Wrong wrench tool. SRAM is not hollowtech . You should never wrench a BB on a CF or aluminum frame.
I believe I used the wrench on both my Shimano and SRAM/GXP BB's. If you look at the spec's for the socket, it fits both.
DocRay wrote:The external BB tool:
It's called the GXP tool or Howitzer tool, ~$25.
or the shimano tool, or any of the sockets you can now get. all the same shit.
the campy one works too.
Leave the big nut well alone. You don't need to take it off, it's part of the self extracting mechanism (that avoids the need for a crank puller).
Just undo the smaller (central, NDS) bolt using an 8mm hex wrench (allen key). That will get the crank off.
If you want to take the BB off too, just use a standard Shimano BB tool.
Hope that helps.
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