Bitubo ECH Cartridge Fork Spring change

cheeky little video to show you how to change a fork spring on a Bitubo ECH cartridge. All tools are available from Parkitt Suspension & Dyno

[@vn3801]

0.28 "tube" it that just a threaded rod? what size? or special Bitubo tool? thanks for your hep

[@Yonootz148]

This is from the ECH manual.
Necessary tools for instalation:
BITUBO No.
- 00397 - ECH-RDH cartridge tool
- 00398 - Top cap tool
- 00416 - Adjuster knob driver (of the top cap)
- 00417 - 13mm spanner for spring guide
- 00402 - TOS compressing tube
- 00400 - Ø33.6mm tube gas filling device
- 00406 - Bottom cap fixing tool
- 00399 - ø33.6-39.8 clamp sleeve
- 00242 - Ø39.8 Grip ring vise
- 00429 - 8mm pin for preload and length adjuster
- 00407 - ø33.6 oil retainer cup
- 00318 - Piston rod soft jaws
- 00274 - Gas valve insertion needle
- 00440 - Bottle with pipe 250cc
- M0001 - Gas filling device

[@Yonootz148]

but to be honest I am not sure which one is the Rod