Originally Posted by
depleted
Now that I'm not struggling with that 146mm axle, what formula should I follow for the spacing on this 135 in my 126 drops?
"Move one or two of them to the left side so that the top-cog (14t) is about 4mm away from the inner-face of the drop-out. There should be just 0.5mm of clearance between the outer-plate of the chain and the dropout when you're in the tallest gear. This will laterally shift the largest cog to the right by 5mm or so and place it right where the derailleur currently stops moving. "
What part of the above still applies?
thanks again, I'm almost there.... next up, dishing (grin)
-Michael
Yes, you always want the cogs as close to the dropout as possible. First to reduce dish as much as possible. And it aligns the 1st cog in a standard position for the RD. If you have multiple wheels with index-shifting, you want them all spaced the same way from the dropout so that when you swap wheels, no adjustment of the RD is needed.
I recommend you stay with the 130mm spacing, makes for a stronger wheel with less dish. Not that difficult to squeeze a 130mm wheel into 126mm dropouts anyway.