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Hollow Isis Crank Bolts ...


Endohopper

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I'm hoping you folks can assist in telling me who manufactures a certain type of crankbolt for ISIS brackets . I had a pair , but lost 'em , and am now lookin' to find a dealer . They're pretty much this type ...

4009.jpg

... except they are entirely hollow , and the bolt head is larger ( 10 mm ? ) or so . It's basically a sleeve with a recessed bolt head and obviously threads on the outside to engage in the bracket . They weighed nothing , and retained the cranks tightly , as well as lookin' cool as you could see clean through the bottom bracket . I even bought an expensive 10 ( ? ) mm allen key just for them , whereas all other bolts seem to use 8 . Am I mistaken and they were perhaps Shimano ? :ermm: Or supplied with some company's bottom bracket ?

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