Just serviced my Command post and it’s super simple, so thought I’d share.
Why: my dropper doesn’t go up and down like new.
Time taken: 30min if you go slowly.
Difficulty: easy as, could do it with your eyes shut. No need to remove seat or post from frame.
Tools used :
- Strap wrench
- valve core remover (optional)
- piece of dowel (optional)
- shock pump
Consumables:
- Clean rag / shop towel
- isopropyl alcohol (optional)
- grease suitable for rubber
Notes: I use a valve core tool to make sure all air is expelled. It only holds around 20psi so just push the valve to remove all air pressure.
The piece of dowel with a rag wrapped around is used to clean the internals. You could use anything to poke the rag in there but a thin dowel will not damage anything.
I use isopropyl alcohol to clean everything. You could just wipe with a clean rag, it’s not that bad.
I used some rubber compatible bike grease on metal to metal parts and SRAM butter on the rubber seals at the head. It’s what I have, and the SRAM butter is super slick. Just make sure any grease used is compatible with rubber.
Process:
1. Let all air out of post at valve under seat.
2. Undo the collar anticlockwise using the strap wrench.
3. Push dropper leaver and pull up seat to remove inner post from bike.
4. Remove all parts from inner post and keep them in order. (Note: remove the spring without damage from the seal on the collar. This will aid in removal and replacement from inner post.
5. Clean all them parts, including the inside if the post still in the frame. (Note: the brass guides may be squashed and notched at the top. If so replace, or as I did turn them upside down on re assembly. Service kits with these parts can be had for as little as $20Aud)
6. You kept it all in order right ?
Now grease all parts and put it back together. (Note: you will have to push the dropper leaver to get the post to engage back into the bike) cycle the post up and down by hand when re assembled, then air up 10-15psi and check operation.
Note: I use a digital shock pump to air up the post as I find it super accurate compared to reading an analog gauge. If you put too much pressure in, the post will fly up and take out your nuts. This will also cause those brass bushes to squash at the top and cause the post to stick at full extension.
7. Crack a beer and launch the bottle top off the seat, like an ejector seat. Enjoy.
Why: my dropper doesn’t go up and down like new.
Time taken: 30min if you go slowly.
Difficulty: easy as, could do it with your eyes shut. No need to remove seat or post from frame.
Tools used :
- Strap wrench
- valve core remover (optional)
- piece of dowel (optional)
- shock pump
Consumables:
- Clean rag / shop towel
- isopropyl alcohol (optional)
- grease suitable for rubber
Notes: I use a valve core tool to make sure all air is expelled. It only holds around 20psi so just push the valve to remove all air pressure.
The piece of dowel with a rag wrapped around is used to clean the internals. You could use anything to poke the rag in there but a thin dowel will not damage anything.
I use isopropyl alcohol to clean everything. You could just wipe with a clean rag, it’s not that bad.
I used some rubber compatible bike grease on metal to metal parts and SRAM butter on the rubber seals at the head. It’s what I have, and the SRAM butter is super slick. Just make sure any grease used is compatible with rubber.
Process:
1. Let all air out of post at valve under seat.
2. Undo the collar anticlockwise using the strap wrench.
3. Push dropper leaver and pull up seat to remove inner post from bike.
4. Remove all parts from inner post and keep them in order. (Note: remove the spring without damage from the seal on the collar. This will aid in removal and replacement from inner post.
5. Clean all them parts, including the inside if the post still in the frame. (Note: the brass guides may be squashed and notched at the top. If so replace, or as I did turn them upside down on re assembly. Service kits with these parts can be had for as little as $20Aud)
6. You kept it all in order right ?
Now grease all parts and put it back together. (Note: you will have to push the dropper leaver to get the post to engage back into the bike) cycle the post up and down by hand when re assembled, then air up 10-15psi and check operation.
Note: I use a digital shock pump to air up the post as I find it super accurate compared to reading an analog gauge. If you put too much pressure in, the post will fly up and take out your nuts. This will also cause those brass bushes to squash at the top and cause the post to stick at full extension.
7. Crack a beer and launch the bottle top off the seat, like an ejector seat. Enjoy.
