Hello. I have a 1990ish ross centaur frame I want to make into a single speed. I got it as just a frame set so I don't have the original components.
I want to buy a new bottom bracket (prob just a basic shimano), crankset (basic sugino or similar), and i was thinking to buy a mavic cxp22 wheelset with a flip flop track hub from velomine. the rears spacing on the frame is 130mm and velomine says they'll add axle spacers for free so I was just going to do that rather than cold set or squeeze it.
now my question is: How can I determine spindle length that will give me a proper chainline? i don't have any of these parts in my possession and don't have the original bb to even know where that one was at. I want to try to do this myself and find some of the stuff used or for deals online and want to try to avoid getting bailed out by lbs if possible.
the crankset is the only thing that matters? I don't have to be worried about being too tight against the chainstays and the ring hitting it? or having a chainline that I can't get straight because the spindle sticks out too far or is too short?
so i can just pick out a crankset i like, get a bottom bracket that has the appropriate length for that crankset and not worry if I'll get a straight chainline with whatever hub is on the rear?
86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
I looked up the bike and on bikepedia.com
I only saw a 93, 94 & 98.
The 98 was an IG hub.
The 93 & 94 had a not normal 20-30-42 tooth chain rings with an 11-19 cassette.
Does your bike have those relatively tiny chain rings?
IF it does, make sure you have clearance against the chain stay if going to larger rings.
Depending on how the chain stays bend immediately behind the BB shell, that "might" be an issue.
i found this listing for one for sale somewhere that states this information:
and here's a nother pic i found that someone converted