Yes. A5 RR-1
There’s been a ton of discussion of this in this forum. Unfortunately you can’t use the forum search (gives the word-too-common error, possibly not with quotes). But search Google for Cruzbike A5 RR-1 and you’ll find them. All the info you need.
It’s been while since I had an older Q, but I think that one took a 125mm shock, which is less common. The Q45 takes 165mm.
I ordered both of mine from a Chinese company I’d never heard of, with half an idea that I’d lost $75, but it arrived in the mail in about 3 weeks.
Definitely get one! It's a big improvement!