Originally Posted by
cny-bikeman
Moving the seat fore-aft (and especially forward) is not an advisable way to adjust reach. Too forward position can cause knee problems.
Depends. This is a mountain bike. OP only wants 1 cm closer. We can't assume the seat is in the ideal position currently.
My guess is it's for casual riding around, and I doubt knee injury will result in this situation. Correct
seat height is more important.