I've got a new (to me) Rocky Mountain Vertex. Fast as flip and really enjoyable but def. an XC racey bike. It encourages you to ride quickly, not 'funly'.
I tried putting a shorter stem on it (from 100mm to 65mm) and the steering was awful. The bike was twitchy and nervous. I've also tried an 80mm with the same negative effect.
It did make the bike easier to lift the front but other than that, unrideable.
Does adding spacers to the steerer tube to raise the stem have the same effect as a shorter stem but without the nervous steering?
I should say that I haven't ridden bikes properly for 5-6 years so is it me waiting to get my skills back or is a 65mm stem on a bike like the Vertex always going to be a weird combo?