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DropperBlock

$40.00
Select Size

Finally, folks with odd-sized dropper posts have a way to attach a seat bag! We've designed our DropperBlock to mount on droppers with 22mm or 28mm stanchions, providing a secure mounting point while protecting the stanchion from wear and the wiper seal from damage.

The DropperBlock is made of 3D printed nylon and comes in two parts which bolt together to create a perfect mounting surface for our Ripsey Seat Bag or any seat bag with a 1" wide strap.

Currently we're only producing the DropperBlock in two diameters - 22mm and 28mm. If your dropper has a 25mm or 26mm stanchion, you'll need a Wolf Tooth Valais instead. We have a list of some common dropper posts and their diameters below:

 Brand Stanchions
9point8 All Fall Line droppers have 25mm stanchions
Bike Yoke 30.9 and 31.6 posts use a 25mm stanchion. 34.9 posts use a 28mm
Crank Brothers All Highline droppers use a 26mm stanchion, except for 27.2mm posts which use a 22mm stanchion
Fox All Transfer posts use 26mm stanchions
One Up All 30.9, 31.6 and 34.9 posts use a 26mm stanchion. 27.2mm posts use a 22m stanchion
PNW Ridge and Cascade 125mm use a 25mm stanchion. All others use 26mm, except for 27.2mm posts
RaceFace Turbine R is 26mm, older Turbine posts were 25mm
Rockshox All posts are 25mm
SDG Tellis dropper has a 25mm stanchion
TranzX
Kitsuma 27.2 - 22mm stanchion
Skyline 30.9/31.6 - 24.5mm stanchion (the 25mm Valais may work with this post. We would love to know and we'll send you one for free if you have one and can test it for us)
Kitsuma 30.9/31.6 - 26mm stanchion
All 34.9 posts - 28mm stanchion
JD-YSP18 - 24.5mm stanchion (the 25mm Valais may work with this post. We would love to know and we'll send you one for free if you have one and can test it for us)

 

That list is current as of November 2023. If your post isn't on that list, you'll have to measure it with calipers (or take it to your local bike shop and have them do it). Make sure to measure the stanchion (upper, smaller tube of the post). And let us know the results so we can add it to our list!