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Discussion Starter · #1 · (Edited)
What do y'all think?

Could a crankset that was designed specifically to be a double mtb crank be made lighter than conversions of current crank designs? Maybe something that would use the current 4 bolt small and mid ring bolt patterns. Designed to run anywhere from 22/32 to 28/42. Chainline moved out a few mm so both rings could use full cassette. Maybe a bit lower q factor.

Do you think there would be a market for that? I have a bit of an idea how it might be made a bit lighter than current crank but not sure where to go next with it. Not sure if it would be worth the research though.



Ta'
Greg
 

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No longer 26
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3,090 Posts
Discussion Starter · #3 ·
Fredrik Larsson said:
Something like Middleburn RS8 Duo?



Claimed weight for 29t+42t ISIS is 522g (BB not included)
Similar but using the standard 4 bolt pattern that we have all grown to know and love:confused:
 

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Look at the Middleburn site and check out their spiders. I think the thing to do is CNC machine a spider that accepts double 4 bolt rings and sets the chainline correctly for a 108mm BB.

That is probably more doable. You check out the functionality for cheap and test the market.
 
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