Silverfish
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Cook Bros crank spider replacement
- Thread starter Silverfish
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Corduroyboy
Gold Trader
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The bolt will unscrew but the spider is peened on which makes it all but impossible to remove without a degree of force that would terminally damage the crank itself. I'm sure it has been done before but I think the consensus in other threads is don't bother.
Silverfish
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Ok thank you
Caj Remtiw
Old School Hero
Cordouroyboy is correct! Besides the bolt, the arm and spyder is screwed together with the 3 small "U-Drive" screws. U-drive screws are a high spiral threaded self tapping screw that IS NOT intended to be removed. Trying to press or hammer the spyder off the crank arm will most probably damage both parts.
The spyder was powder coated yellow to match the period specific Rockshox. Rumor has it that they were a very small run and your just might want to try to sell them and find another pair of cranks. If not you can attempt to strip the powder coat off the spyder but be careful because the stripper could have a corrosive effect on the bare 7075 aluminum.
good luck!
The spyder was powder coated yellow to match the period specific Rockshox. Rumor has it that they were a very small run and your just might want to try to sell them and find another pair of cranks. If not you can attempt to strip the powder coat off the spyder but be careful because the stripper could have a corrosive effect on the bare 7075 aluminum.
good luck!
Silverfish
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Yep
They were built onto a Fat Chance show bike for the importer and then removed.
I think I need to sell them and find some others
They were built onto a Fat Chance show bike for the importer and then removed.
I think I need to sell them and find some others
Caj Remtiw
Old School Hero
Buy any chance it was Mark from Evolution that sold you the cranks? I took he and his wife on one of my annual fall surf trips down into Baja. His wife was a "trooper" and had a GREAT time! Mark mostly whined, complained, and sniveled! 
Silverfish
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Ha! No I did the classic bought it from a guy who bought it from a guyBuy any chance it was Mark from Evolution that sold you the cranks? I took he and his wife on one of my annual fall surf trips down into Baja. His wife was a "trooper" and had a GREAT time! Mark mostly whined, complained, and sniveled!
Silverfish
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Sounds valuable
fguki
Senior Retro Guru
I am dusting off this pretty old thread ... also because I think here there is a lot of non existing skill wondering around here ;-) ;-)
Removing the Cook Bros Racing crank arm from the sypder is (and has always been) very easy.
1.) Unscrew the main M8 screw on the bottom side.
2.) Place your crank face down in a protected (!) cradle in your bench vise to avoind any scratches.
3.) Gently hammer out the crank with a rubber hammer.
This is no big deal at all (!) The 3 pinheads are standard twisted rivets. Just as being used on fastening metal badges on head tubes on old road bikes etc.
Very easy job actually to remove it. And of course, everything can be re-installed again. The rivets can also be replaced and can be found in retro road bike shops.
Cheers
;-)Removing the Cook Bros Racing crank arm from the sypder is (and has always been) very easy.
1.) Unscrew the main M8 screw on the bottom side.
2.) Place your crank face down in a protected (!) cradle in your bench vise to avoind any scratches.
3.) Gently hammer out the crank with a rubber hammer.
This is no big deal at all (!) The 3 pinheads are standard twisted rivets. Just as being used on fastening metal badges on head tubes on old road bikes etc.
Very easy job actually to remove it. And of course, everything can be re-installed again. The rivets can also be replaced and can be found in retro road bike shops.
Cheers
