IP-256SL questions.

[JohnnyNT]

Can't you just put a 32 on the front and go with smaller rings on the cassette to get the same ratios?  Plus it would shave off about 5 g

Smaller than 10t?

Well, there exist 9t cassettes, not sure if they produce them anymore though: http://singletrackworld.com/2013/12/canfield-adds-9-36t-steelalloy-capreo-cassette/