Why not? Gearing too wide?
The gears it provides access to aren't that useful in a CX race - generally you can run faster than pedal 38/32. Also - and this just what I've read - they are more vulnerable than short cage mechs to damage when you crash.
@Howard started
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The gears it provides access to aren't that useful in a CX race - generally you can run faster than pedal 38/32. Also - and this just what I've read - they are more vulnerable than short cage mechs to damage when you crash.