Originally Posted by
caloso
I’ve built up a few 10-speed bikes in the last year: a TT bike and 2 CX bikes. Mostly because I had a bunch of parts lying around and partly because people are practically giving away 10-speed rim brake wheels these days. I guess I’ll start stockpiling cassettes and chains soon.
For me, it was chainrings. The 53t chainring for a 6700 crankset is like a ghost, and the 39 wasn't much easier. Mine are currently mismatched in color because that's all I could find. Added bonus: stores know these are difficult to find, so just the 53t costs $105, and took 20 days to get to me.