Originally Posted by
Jipe
Mounting a Brooks saddle (or any other standard rail saddle) shouldn't be a problem.
But the two others seems almost impossible.
The Brompton front block will hit the lefty fork when turning right. You must wait for the proprietary Helix front bag mounting.
eBike upgrade seems very difficult.
- a front hub motor would need a lefty fork compatible hub motor.
- a bottom bracket motor will probably cause problem to fold the bike
- a rear hub motor is maybe possible but Helix has very special dropouts that will make the mounting more difficult.
The Helix will have a rear hub motor option (only the model with 11 speed cassette), they have already been working on that; it will take some time to be offered but they have mentioned it a few times (incl. a picture of the motorized wheel).