Does anyone know the diff between the FC-7700 and the FC-7701?
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Re: Shimano 9-Speed Cranks - 7700 & 7701 [Scamboy]
[ In reply to ]
Is one the triple?
Re: Shimano 9-Speed Cranks - 7700 & 7701 [Scamboy]
[ In reply to ]
i asked the same question a few months back.
from what i was told, the 7701 is forged, while the 7700 is... uh... something else :)
bottom line was the only difference was the manufacturing process (according to the replies i received here anyway).
____________________________________________________________
"I'm happy when life's good,
and when it's bad I cry.
I've got values but I don't know how or why."
- The Who
from what i was told, the 7701 is forged, while the 7700 is... uh... something else :)
bottom line was the only difference was the manufacturing process (according to the replies i received here anyway).
____________________________________________________________
"I'm happy when life's good,
and when it's bad I cry.
I've got values but I don't know how or why."
- The Who
Re: Shimano 9-Speed Cranks - 7700 & 7701 [caleb]
[ In reply to ]
No. 7703 was the triple. I think it may just have been a design change.
Re: Shimano 9-Speed Cranks - 7700 & 7701 [ironcouple]
[ In reply to ]
The original 7700 crank was made in 2 pieces to get the hollow arm. the outer part of the crankarm was forged in 3 dimensions, and a flat plate was welded to the back of the arm and then machined smooth.
I think the 7701 crankarms were made as one piece. No welding required
Swimming Workout of the Day:
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I think the 7701 crankarms were made as one piece. No welding required
Swimming Workout of the Day:
Favourite Swim Sets:
2020 National Masters Champion - M50-54 - 50m Butterfly
Re: Shimano 9-Speed Cranks - 7700 & 7701 [Scamboy]
[ In reply to ]
As previous posters have mentioned. The one piece hollow forging was perfected after the Hollow Tech process was started by "cut and pasting" The one piece units are about 25 grams lighter.
-SD
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-SD
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