Thread: Shimano triple chainring on double chainring same BCD?
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Old 12-01-22, 04:53 PM
  #15  
70sSanO
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Originally Posted by sean.hwy
I was looking at M785 just the other day. I the M985 uses a proprietary big ring for some reason.

the older fsa is BCD: 104/64mm. I am thinking the Shimano M785 might be more trouble in the long run even if it's about 200 grams more though.


$295
FSA K-Force Light ATB MTB Crankset 170mm 24/38t Double 4 Bolt
Length: 170 mm
BB30 Spindle
BCD: 104/64mm
Weight: 560 grams
https://www.ebay.com/itm/19477171067...Cclp%3A2047675
The outer ring is still a 38t.

What 2x outer ring, or possibly a 3x middle ring, do you plan to use to get to 40t/42t?

John
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