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Question about installation of a Sugino 75 BB

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Old 06-30-06 | 03:47 PM
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Question about installation of a Sugino 75 BB

No, I'm not asking how to do it again. I was quoted $25 to get it installed, so I'm letting someone else do it.

The question is - Should I bring my wheelset to the shop that's going to install it? I don't know much about BB's, but I know that one cup on my Sugino 75 BB is adjustable. Should I bring along my wheelset so I can be sure that my chainline is perfectly straight? So far as I know, Phils use the industry standard 42mm chainline, but my LBS will not be handling this and I don't want to drive another 45 minutes to clear up small details.
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Old 06-30-06 | 03:49 PM
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I'd bring 'em the whole bike so you can check it out when its done.
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Old 06-30-06 | 03:50 PM
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hm
usually you should give them the whole bike

and the cup is not really "adjustable" in the sense you are thinking. The drive side cup is fixed. and the non-drive side is ringed, meaning it is easier to snug up so the bearings spin properly. This has little to do with adjustability in the sense of chainline precision adjusting. The BB is a 109mm spindle fitting English threaded (68) BB shells. If your BB shell is Italian threaded (70), there is an Italian BB option from Sugino.

Last edited by pitboss; 06-30-06 at 03:56 PM.
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Old 06-30-06 | 03:52 PM
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Originally Posted by roscoenyc57
I'd bring 'em the whole bike so you can check it out when its done.
Well, it's a new frame and I didn't really want to haul all the loose parts up there. I guess it makes sense though, good point.
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Old 06-30-06 | 03:54 PM
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Originally Posted by [165]
hm
usually you should give them the whole bike

and the cup is not really "adjustable" in the sense you are thinking. The drive side cup is fixed. and the non-drive side is ringed, meaning it is easier to snug up so the bearings spin properly. This has little to do with adjustability in the sense of chainline precision.
Cool, thanks.

edit: But wait, the "adjustability" doesn't have any impact on chainline at all? I'm probably mistaken, but I thought there was some way to make minor adjustments with this BB.
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Old 06-30-06 | 04:06 PM
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You got it...the bottom bracket adjustment has no effect on chainline, simply how smooth the bearings turn. For that matter pretty much every BB out there, save Phil and Miche have no cahinline adjustment built into the design.

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Old 06-30-06 | 04:06 PM
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You shouldn't be able to make adjustments with this. If properly mated to the matching cranks and the hubs will give you a 42mm chainline, you have nothing to worry about it. Be sure that the cranks are properly seated on the spindle and you'll be fine. While it wouldn't hurt to bring the wheelset in, it's not necessary I think.

The adjustable BB you may be thinking of is either Phil Wood or Miche.
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Old 06-30-06 | 04:13 PM
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Originally Posted by absntr
You shouldn't be able to make adjustments with this. If properly mated to the matching cranks and the hubs will give you a 42mm chainline, you have nothing to worry about it. Be sure that the cranks are properly seated on the spindle and you'll be fine. While it wouldn't hurt to bring the wheelset in, it's not necessary I think.

The adjustable BB you may be thinking of is either Phil Wood or Miche.
Thanks. You people are wonderful.

I've got Sugino 75 cranks, so I'll stop worrying about it.
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Old 06-30-06 | 04:21 PM
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btw, make sure you rebuild that bottom bracket monthly at least if you ride your bike at all. I ride everyday to work and school, and after three months, I had already pitted a cup. I mean it is still rediculously smooth, but water kills these things. They arent sealed like most three piece bottom brackets as they are meant for the track...if you love them, its worth it though

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Old 06-30-06 | 04:54 PM
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Originally Posted by hunterrb
btw, make sure you rebuild that bottom bracket monthly at least if you ride your bike at all. I ride everyday to work and school, and after three months, I had already pitted a cup. I mean it is still rediculously smooth, but water kills these things. They arent sealed like most three piece bottom brackets as they are meant for the track...if you love them, its worth it though

-Robb
Thanks for the advice. Shouldn't be a problem. I'm going to invest in the tools soon and I don't mind taking the time for maintenance.
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