Brompton Mid Stop Block

Allows you to roll your non-P-Line Brompton (ie. official C-line Bromptons and Bromptons before the C-Line designation existed) with the seat post up. Prevents unfolding when lifting the Brompton with the seat post up. Note that this is not compatible with the Brompton Electric, when folded, the Mid Stop Block will pinch one of the cables for the electric assist system. Features: Weight: ~10g Will fit with or without Brompton mudguard The standard colour is Black. Printed in rigid PETG with a snap fit. This fit on all frames (oldest bike I have tested this one was 2007) with some slight variation on tightness. I kept it on the tighter side because you can always sand it a bit to get it to fit better. The fit seems tight enough that it won't rattle or fall off.