Don't know but I think 120mm will be fine. The bike is in Spain and i'm not. The shop I bought it in has only suggested a Rockshox reba but at €550 which is more than I can justify. I have the spec sheet.
The problem seems to be what will fit. I was hopeful of £200-300. I have another cube reaction performance 2021 which has been fitted with a sun tour xcr 120 mm which is much better but I’m told one wont fit this bike.
I have 2020 cube reactions hybrid pro which has a suntour xcm coil fork. I'm looking for advice for an upgrade that will fit and won't break the bank. I ride rough fire roads in Spain. Thanks guys.