Guild Wars 2

can you reset stats on ascended backpieces like with armor and weapons?

Nope.

~EW

/15CharrsOnADeadNorn’sChest

EphemeralWallaby.7643:

Nope.

~EW

/15CharrsOnADeadNorn’sChest

Well yes and no, is it one that you chose stats on before like book of yakkington or spinal blades?
And then yes you can if you havent infused it yet

Linken.6345:

Well yes and no, is it one that you chose stats on before like book of yakkington or spinal blades?
And then yes you can if you havent infused it yet

Nope.
In those examples you aren’t changing stats, you are selecting the stat it will have.

Also, the OP asked specifically “like with armor and weapons”, so EW’s answer is 100% correct.