Maybe you unclip/unbolt the seat then unscrew the brackets from captive nuts?
ding ding ding, give that man a banana!
I had a nose last night and there are two little push buttons that detach the seat, under there two silver covers and under there the heads of two flat head screws...
Me right now
@Backstop started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Maybe you unclip/unbolt the seat then unscrew the brackets from captive nuts?