Bicycle Mechanics - STX crank removal

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etherhuffer

09-06-07, 09:49 AM

I need to pull the crank off of an STX Shimano. Anyone know the hexbolt size that holds it on? I would like to save a trip to the tool store! Looks close to 8mm

HillRider

09-06-07, 10:28 AM

All Shimano cranks with Allen head crank mounting bolts that I've ever seen use an 8mm allen key. BTW, get a long arm wrench. A standard L-key won't give you enough torque to remount the crank. Better yet, get an 8 mm socket bit so you can use a 3/8" or 1/2" square drive ratchet.

etherhuffer

09-06-07, 10:41 AM

Thanks! I have an 8mm somewhere in my toolset. Its for 1/2 inch drive so I am there!

etherhuffer

09-06-07, 10:59 AM

Also, I just need the one crank arm off to get the middle chain ring on. Do I need puller as well as the hex wrench?

fourpunk

09-06-07, 01:17 PM

yes you do.