So my RadRunner has a common 27.2mm seat post, but a normal 28.6 seat clamp does not fit. Here's my intention. I wanna put a bmx non-quick release seat clamp on my RadRunner and install a Hexlox so my comfy seat won't get kidnapped, but I found that a 28-6mm seat clamp won't fit the frame. I measured 31.2ishmm with my cheap-o digital gauge, but I just want to confirm the correct size before ordering a seat clamp. I emailed Rad support with my question also, but if anyone has a confirmed size please let me know, and if I figure it out I'll post my findings. Thanks.