"Uhm, P-8 already has a 68 degree head tube angle and it seems to be marketed as an AM frame. What sort of riding-type you are talking about: XC, trail, AM, enduro, DH? What fork did you put on your P-8?"... I used a Fox 34mm, 140mm fork. When I set this bike next to a IBIS Ripley, for example, the IBIS is much slacker. Even though this bike with a 140mm fork is theoretically similar to the Ripley, at least on paper. I think it may actually be a little steeper than Ican says it is. Don't get me wrong. I really like the bike. But I have grown accustomed to bikes with hta of around 65.5 -66.5 degrees. Much smoother feel at moderate fast descending speeds. ... " The designs come from big box companies for the most part and because new designs are copyright protected," I haven't seen another designed big box bike that is exactly like a P-8. Transition Smuggler (an aluminum frame from a couple years ago) is very similar. But the geometry is not exact. My initial setup fro the P-8 is with a 200mmx 57mm rear shock. This increased the travel a little to maybe 130mm or so. And I have installed some offset eyelets in the shock to slack it ever so slightly. But when you start changing eyelet length you have to be careful with seat tube angle also. So while I really enjoy the bike. And while a light build 140mm 29er seems to be the sweet spot for a lot of the trail riding here in Western Colorado; I am just saying that 1-2 degrees more hta slackness in this frame design would be a real good thing. Just my opinion.