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Discussion Starter · #1 ·
Hi!
I've got a BB Shimano UN71 (107mm or 113mm, I think) with Shimano Dura Ace 7402 cranks, and perphaps I'm gonna to change it for a CNC aluminum EDR cranks (EDR was a fabulous spanish manufacturer), and I don't know if I'll get some problems by remaining with the same BB.
What do you think???
Which is the weight of Shimano 7402 cranks???
(the EDR ones weights 405g)
 

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Your DA cranks should be using a 113 spindle...Whether that would work with the EDR depends on the specs of the EDR cranks...sorry, I can't help with them as I've never heard of them..

As for weight of the 7402 cranks, they aren't light...... I've never weighed them
 

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DA 7400 cranks weighed 648g. The loose ball english BB spindle was 112mm and the Itl was 113mm.
 

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648 complete. Back in the early 90's, they didn't weigh cranks w/o rings.
 

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Discussion Starter · #6 ·
So if Dura Ace 9v sp chainrings weights 92g + 42g = 134g...
EDR crankarms + chainrings = 405g + 134g = 539g....
109g less?????
It's a huge difference, no?
I don't know if should I change it....(the EDR ones costs 50€)
What do you think????
 

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Dave Hickey said:
you won't even notice a 100gr difference....Keep the DA cranks
And the EDR cranks may be ISO taper rather than JIS. Keep the DA!
 
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