Upper Porteur Mounting

Earlier we had talked about fitting the Porteur racks at the front dropout, and today we will be showing how to get this done up at the top.

This is another area that we feel the current racks on the market fall a bit short.  Most of the commonly available racks, VO, Soma etc, are designed to work with a single tang connected to the center of the crown.  This works, but not as well as it could.  It leaves the rack a bit wiggly, and leaves only one chance for loose hardware to become a really big problem.  We designed the Rambler with dual mounts at the crown.  This provides engineering redundancy in the  mounting as well as greatly added stiffness.  The fork crowns with this mount are open to all, this is not something we invented, but hope that will become widely adopted.  The downside to this is that the current racks on the market need a bit of adaptation to integrate with the improved mounting.

Our first solutions involved the addition of struts welded in place.  This has worked very well and if you have access to somebody with the metal fabrication skills needed to make this work I would recommend going this route.

10.17 prack mt up-1100660We realize that not everybody putting a Rambler together at their home workshop or even having their local bike shop buildup their Rambler has the resources to do this.  While searching for a suitable hardware, nuts and bolts, solution we were turned on to  the hardware kit sold by Surly for their rear rack.  This has proven to work quite well, the struts included in the kit only need a bit of bending and trimming, and it all bolts right up.

10.17 prack mt up-1140681 10.17 prack mt up-1140721 10.17 prack mt up-1140722Like al bolted hardware on a bicycle this will need to be checked regularly, but in practice has proven to be quite robust, and will work with all of the commonly available racks on the market.

Our long-term goals include the development of our own racks as well as partnering with existing producers to help their future racks work with this system that is both safer and more stable.

This entry was posted in build tips. Bookmark the permalink.

6 Responses to Upper Porteur Mounting

  1. Pingback: Collisions and Clearances | Ocean Air Cycles

  2. Reland Boyle says:

    Hey, I’m just about to use the Surly hardware to mount a Soma Porteur to the fork of a custom frame set. It’s encouraging to see that someone else has already made it work. Thanks for this.

  3. Ricky says:

    I just ordered the Surly hardware and i will be mounting my Soma Porteur rack as well. Thank you for this great idea

  4. Eric Bell says:

    I stumbled on this searching Porteur racks, getting frustrated that I couldn’t find one that mounts just like this. I am so happy! This is really cool, and much appreciated information. I will definitely try this, but I do not have the mounts on my fork crowns, so I am hoping I can get this to work a different way. Now, I really need to check out your bikes too.

    • Reland Boyle says:

      Eric, it’s much nicer looking and probably stronger when you have a fork with eyelets intended for the porteur, but you could use the Surly hardware along with some P-clamps around the fork blades and get nearly the same results. If you want to make it really rigid, use the Surly hardware AND the included mono-stay to the crown.

  5. Mark says:

    This was super helpful to find! I just installed a Soma porteur rack on my Surly Straggler. I used the fork eyelets with no problem by flipping their tabs upside as Soma suggested. I was worried about tire clearance and the mono-stay on the crown when I run big tires so I got the Surly hardware as well. Too bad the Surly hardware doesn’t come in black to match my rack.

Leave a Reply