fc7800 bb + fc5650 crank?
12-12-10, 02:40 AM
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fc7800 bb + fc5650 crank?
Will it work? i know the bottom bracket goes with a dura-ace crank usually but is there really any reason it wouldn't fit a 105?
12-12-10, 06:43 AM
#2
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will work fine. Hollowtech II spindles are all the same.
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12-12-10, 07:31 PM
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If the op had a budget of $100 he good go to Walmart but that is a questionable deal. Budgets are not the issues be real.
12-13-10, 12:51 AM
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will work fine. Hollowtech II spindles are all the same.
Why not get the 7900 crank, it is very light and quite nice.
12-13-10, 03:16 AM
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I just find that 355 grams is a lot of weight. 355 grams weight savings in a frame would be a big deal. You can find the Dura-Ace crank on sale for less than $400+/-, not today. I would say to save your money and buy once.
12-13-10, 05:45 AM
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Thanks. That's what i figured but i wanted to be sure.
A few reasons. I get close to cost on parts but they're still not cheap. I would rather take the extra $250 that i would spend on the dura-ace crank and buy the race wheels i have been looking at. The dura-ace crank would probably save me about 355 grams. Spending the same amount on the 105 crank and the new wheels will save me about 598. Basically i can spend $400 and save 355 grams,or spend $400 and save 598 grams.
A few reasons. I get close to cost on parts but they're still not cheap. I would rather take the extra $250 that i would spend on the dura-ace crank and buy the race wheels i have been looking at. The dura-ace crank would probably save me about 355 grams. Spending the same amount on the 105 crank and the new wheels will save me about 598. Basically i can spend $400 and save 355 grams,or spend $400 and save 598 grams.
The weights listed at Competitive Cyclist's web site only differ by about 100 g:
https://www.competitivecyclist.com/pr...772.324.0.html
https://www.competitivecyclist.com/pr...077.324.0.html
12-13-10, 06:24 AM
#13
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Don't go there.
12-13-10, 09:48 PM
#14
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I'm going by the weights listed in J&b and Qbp catalogs. I'm just not interested in the dura-ace crank. 105 will do just fine.
12-14-10, 07:56 AM
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I'm running an Ultegra SL Crankset with a Dura-Ace 7800 BB.
No proglemo for me. Rolls like buttah.
No proglemo for me. Rolls like buttah.
12-14-10, 01:25 PM
#16
Bike ≠ Car ≠ Ped.
I'm using an R700 with a Tiagra BB. 
I did buy an Ultegra BB, though, mainly because I mis-purchased an Italian-threaded DA BB at a store clearance and ended up with just one usable BB for the two bare cranksets I had. Now I'll use the Tiagra BB for the Tiagra crank and put the Ultegra on the R700 bike.
I did buy an Ultegra BB, though, mainly because I mis-purchased an Italian-threaded DA BB at a store clearance and ended up with just one usable BB for the two bare cranksets I had. Now I'll use the Tiagra BB for the Tiagra crank and put the Ultegra on the R700 bike.
12-14-10, 04:55 PM
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Besides.....don't ever believe anything the Q tells you. it's all a vast conspiracy. f the Q.
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