Upgrading IRO crank/BB, how to get the right one?
01-21-06, 01:35 PM
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Upgrading IRO crank/BB, how to get the right one?
I am thinking of upgrading my IRO crank/BB at some point in the future. The rear wheel has a 42 mm chainline, the BB has a 110 width. Do I need to match the 110 width, or would a sugino crank/bb with a 109 mm width work just as well? Is there something about the sugino crankset that makes up for that lost millimeter?
Thanks.
Thanks.
01-21-06, 02:21 PM
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Not quite as well, but I do it; no problems. It's a millimeter. Some people claim you can notice a difference, though.
The only widely available 109 BB is the Sugino, I think, and it's 90 bucks or so.
The only widely available 109 BB is the Sugino, I think, and it's 90 bucks or so.
01-21-06, 02:57 PM
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If you're replacing the crank and teh BB at the same time, and get a combo with a 42mm chainline, you're cool. Spindle length just has to be appropriate for the crank.
01-21-06, 08:35 PM
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42mm is the standard track chainline - if you buy track-specific stuff you will be fine.
01-21-06, 08:35 PM
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In my experience, the matching BB with the proper crank is wonderful. It feels like butter -- smooth, silent and strong.
However, I ran a 107 and prior to that a 110 Shimano BB with my Sugino 75 set. Close enough and servicable. I thought it was pretty spot on until I actually installed the Sugino 75 BB and it was quite the difference. I thought I wouldn't notice but I did.
You might not notice it for street -- but on the track I felt it.
One of the small wonders is Campy cranks -- they have a standards 111 or 102 (depending on what cranks you but - double, triple, etc) but their track cranks take 111 which they have very affordable BB's in since that size covers various cranks in their product line.
Your other options for a 109 BB are the Shimano cartridge track BB and I've heard good things about the 110 Phil Wood BB being run with Sugino 75's.
However, I ran a 107 and prior to that a 110 Shimano BB with my Sugino 75 set. Close enough and servicable. I thought it was pretty spot on until I actually installed the Sugino 75 BB and it was quite the difference. I thought I wouldn't notice but I did.
You might not notice it for street -- but on the track I felt it.
One of the small wonders is Campy cranks -- they have a standards 111 or 102 (depending on what cranks you but - double, triple, etc) but their track cranks take 111 which they have very affordable BB's in since that size covers various cranks in their product line.
Your other options for a 109 BB are the Shimano cartridge track BB and I've heard good things about the 110 Phil Wood BB being run with Sugino 75's.
01-21-06, 08:40 PM
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Originally Posted by chicagoamdream
Not quite as well, but I do it; no problems. It's a millimeter. Some people claim you can notice a difference, though.
The only widely available 109 BB is the Sugino, I think, and it's 90 bucks or so.
The only widely available 109 BB is the Sugino, I think, and it's 90 bucks or so.
75-81 bucks....
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