8, 9 and 10 speed cassettes have the same width (10 are even narrower), so it doesn't matter with 1 chainring on front... I run 1x10 on my cx, have 39x11-25 and it's good, but I'll probably look for 11-28 cassette
@Shl started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
8, 9 and 10 speed cassettes have the same width (10 are even narrower), so it doesn't matter with 1 chainring on front...
I run 1x10 on my cx, have 39x11-25 and it's good, but I'll probably look for 11-28 cassette