Majspipan@mac.c
05-11-07, 02:46 PM
On my Duratec track frame with 68mm BB shell, I have a pair of Sugino 75 cranks fitted to a 109 Sugino 75 BB, and somehow I get a front chainline of 44,5mm. How the **** is that possible?
Singlespeed & Fixed Gear - sugino 75 chainline ...again.
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mander
05-11-07, 02:55 PM
You torqued it to spec, right? It could be something that simple...
Majspipan@mac.c
05-11-07, 03:00 PM
Well, since I don't really undersatnd what you mean, I guess you may have a point. Could you explain, please?
trons
05-11-07, 03:04 PM
the more you torque the bolt down the further on the spindle it goes...
Majspipan@mac.c
05-11-07, 03:18 PM
Well, maybe I could torque the right side a little tighter, but I doubt it will make 2,5mm..
megatron
05-11-07, 08:56 PM
Are you sure you dont need a 107 bb... its not uncommon.
Majspipan@mac.c
05-14-07, 12:48 AM
could be, but sugino 75 BB and cranks SHOULD be 42mm. I will have a closer look at the cranks tonight.
Landgolier
05-14-07, 06:38 AM
Get a torque wrench, that could be part of the problem. Also, has your bb shell been faced? 1.5mm or more of paint and runout is not uncommon.