ISIS Standard Crankset - BB86 compatibility

Discuss light weight issues concerning road bikes & parts.
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rafalkalwa
Posts: 4
Joined: Mon Nov 19, 2018 8:25 am

by rafalkalwa

Hi,

Do you know any bottom bracket or adapter allowing to use ISIS Standard Crankset with BB86 frame? I got the oportunity of buying very cheap Mythic Carbon Crankset but I see no solution for compatibility problem :cry:

by Weenie


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Klaster_1
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Joined: Mon Aug 15, 2016 10:25 am
Location: Russia

by Klaster_1

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Last edited by Klaster_1 on Mon Nov 19, 2018 4:16 pm, edited 1 time in total.

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ms6073
Posts: 2769
Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

Seems to me this is somewhat akin to the Hollowgram in a non-BB30 frameset question. Regardless of custom spindle or not, a standard ISIS crank was designed in the days of 68 mm wide threaded bottom bracket shell, thus an ISIS crank spider is not going to have the proper offset for a wider bottom bracket. So like the hollowgram crank, a longer spindle is simply going to move the chainrings out beyond the required chainline, effectively moving the inner chainring where the out chainring would be on a BB86 crank.
Michael - The Anaerobic Threshold is neither...

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