Flevo-racer with chain box: the adjustable seat
The design in parts
	Overview of the design (start page)
	Redesigned frame
	Chain box design part 1
	Chain box design part 2
	Chain box design part 3

Seat
To be able to have the chain box as a fixed part of the frame, the front wheel axle has to be fixed in the frame, as well as the bottom-bracket. Because shorter and longer people must be able to ride the bike, the distance between seat and pedals must be variable.
This has been solved by designing the chair movable. We think that plus and minus 10 cm from a centre point should be enough for most people.
We also want the possibility to tilt the seat with an angle of 10%. This is realized with the metal strips behind the back. The holes allow to assemble the fasteners in various combinations. The seat mounting is with a (quick release?) bolt (bottom) and two fasteners (top).

Next page -> chain box part 1