Originally Posted by
Son_Rising
Your rear seat post is so long (or rather tall)! Hopefully when you have a tall rider in the rear they are either light and/or aware of the vulnerability to the frame in that clamp and weld area. If it were me I'd choose a post that would give before the frame did and would never ride an inexperienced heavy-tall rider back there.
This is also something that I have been confronted with multiple times already and I'm insecure. We're riding an L/S frame and on multiple occasions there could have been 180cm / 80kg class stokers. I really do wonder where the limits for the rear are as that will present an enormous leverage once I miss avoiding that one large pothole or we just work hard. Do minimum insertion depths increase with seat post length, too?