Saturday, August 31, 2013

DIY Joplin Adjustable Seat Post Conversion

Got a Crank Brothers Joplin Adjustable Seatpost, that I wanted to convert to a remote setup and I didn't want to spend the money they were asking for the kit, so...I built it myself!
I bought the Joplin Seat Post off Trade Me for $50.00, so the first step, was to strip it and replace the worn parts, clean and reassemble.

Reassembled and tested...all set for modification to take DIY remote.

I wanted to make it an internal mechanism, so that dirt couldn't get in. I cut a slot into the front of the post, to accommodate the lever I was making.

Rear view of slot.

Small lever manufactured & ready for install.

Lever installed.

I had drilled a hole to allow for cable, making sure I aligned it with the lever.

Made up a boot out of an old tube, to keep out the mud.

Made up a remote trigger out of aluminium off-cuts & an adjuster off an old derailleur.

Installed...works perfectly.

Installed trigger.

3 comments:

  1. Hello, could you wrote me measurment of pin tool, which is need for open these seatpost?? Thank you very much. Radek

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  2. Hi. How did you get the rod out of the middle (the one that operates the valve)

    ReplyDelete
  3. Hi,what is the model of bottom valve? Thank

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