How long have you been cycling for? Have you spent any time finding your ideal fit on a bike? THe fact that you are unsure about your choice of saddle suggests that you perhaps haven't....
I can ride a wide/flat saddle at a height of 850mm, my knee angle is "within range" a the bottom of the stroke and I'd be comfortable for a day in the saddle. I'd end up with a short stem (110mm) for my height and a small saddle to bar drop though. Handling (especially on high speed descents) wouldn't be perfect, and my "aero" credentials wouldn't be great either.
What I actually ride is a narrow/curved saddle at a height of 820mm, a 140mm stem and a 145mm saddle to bar drop. It's just as comfortable for a day in the saddle, but aerodynamics/power/handling are much improved. It took me a while to arive at this position, but it's how I've ridden for the past however many years, and I can't see it changing much (obviously stem length and saddle setback vary within 10mm or so between bikes)
Do you have any photos of yourself in your current position on your current bike?
It seems like a potentially risky move ordering an expensive bike if you're unsure of your fit. If you do go ahead, I would suggest fairly "neutral" geometry for your height, and a standard seatpost incase your saddle height does change.
How long have you been cycling for? Have you spent any time finding your ideal fit on a bike? THe fact that you are unsure about your choice of saddle suggests that you perhaps haven't....
I can ride a wide/flat saddle at a height of 850mm, my knee angle is "within range" a the bottom of the stroke and I'd be comfortable for a day in the saddle. I'd end up with a short stem (110mm) for my height and a small saddle to bar drop though. Handling (especially on high speed descents) wouldn't be perfect, and my "aero" credentials wouldn't be great either.
What I actually ride is a narrow/curved saddle at a height of 820mm, a 140mm stem and a 145mm saddle to bar drop. It's just as comfortable for a day in the saddle, but aerodynamics/power/handling are much improved. It took me a while to arive at this position, but it's how I've ridden for the past however many years, and I can't see it changing much (obviously stem length and saddle setback vary within 10mm or so between bikes)
Do you have any photos of yourself in your current position on your current bike?
It seems like a potentially risky move ordering an expensive bike if you're unsure of your fit. If you do go ahead, I would suggest fairly "neutral" geometry for your height, and a standard seatpost incase your saddle height does change.