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Angry bunny
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4,948 Posts
Discussion Starter · #1 ·
Is there any way to shave a few grams of these??
Switch to ti pinch bolts??
Different BB??
XTR middle chainring??

I know I could just spend some big $ and get XTR, Noir or Race Face Next cranks but I am hoping for some cheaper alternatives.
 

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4,720 Posts
Anyone know the weight of the steel/carbon 32T middle chainring on an XT M770 crank? Wondering if it's any lighter than a 32T aluminum middle chainring, or if just more durable (from the steel teeth).

thnx
 

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ups and downs
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15,600 Posts
MI_canuck said:
would the XTR 32T ring (AA type) fit any Shimano 104BCD crank? (specifically would it fit the M582?)
Not without some filing on the cranks, the XTR and XT middle rings have rounded bolt areas, the 582 has a inner profile shaped to sit on a ridge on the crankset spider arms.
 

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