I have a norco sight 2015. Can it handle a 160-150 mm fork. It comes with a 140mm fork. When i bought it it had a sticker saying 140mm was max fork size. I think this might be to do with warranty.
Go to the shop you bought it from and ask them to order the air chamber for a 150 or 160mm pike. its aorund $50 and is very simple to install. (PM me if you want to know how to do it)
Myself along with a fellow 2015 sight owner both have 160mm solo air pikes fitted and it is the best decision we made. It makes to bike just that little bit more aggressive.
A 140/160 dual position would be better for the climbs but for the $50 dollar part upgrade I was happy to go with 160mm alone.
if the bb height is a real issue you could utilize offset bushes to regain the change. Just keep in mind the frame is designed around a 140mm fork so upping the travel slackens the seat tube, raises the BB, slackens the head angle etc.
I haven't noticed any difference to pedaling performance through standard up/down trails only when it gets 15% or greater have i noticed the reduced weight over the front end making it slightly harder. (the return DH more than made up for slight extra effort in getting to the top.
In terms of warranty, i have been assured by my local dealer that i am fine to do this and they were there when i installed it, although others may differ.
Any questions shoot me a message, more than happy to help out.
A picture of the part is below, your Rockshox Pike manual has the details of what spec rod you need to get the desired travel.