Old 11-05-21, 02:24 AM
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metalrideroz
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How To: Tubus Duo rack on Long Haul Trucker

You would assume probably the second most ubiquitous low rider rack, behind the Tara, would bolt straight onto probably the most ubiquitous touring bicycle, a Surly Long Haul Trucker. It seems not.

The curve in the fork and rack dont work together and mean you need to space the rack out more than the included Tubus hardware allows. A Shimano cam style skewer is also nowhere near fitting.

The following is how I mounted the rack and what hardware I used. Whether you are comfortable with the extra bolt length and spacers at the dropout is up to you to decide. Rack is sturdy and works fine for me. Wheel drops in and out as normal. Skewer clears in pictured position. Any questions please ask. Or just buy a Tara and dont bother with the faff.

Hardware needed, some of this is supplied with the rack. I just used what was easily available to me.

4x M5 x 30mm g12.9 socket cap bolts, used for the dropout eyelet and outer fork mount
2x M5 x 12mm g12.9 socket cap bolts, used for the inner fork mount
6x M5 round washer
2x M5 nyloc nuts, used on inside of dropout
2x threaded presta valve stem nuts, used as spacer on outer fork mount to prevent bolts meeting inside the fork. You can use a better fitting M5 washer if you have one.

2x bushings from worn out 7 speed road rear derailleur guide and tension pulleys.
These are 9mm wide. I used some from 7 speed rx100. These are optional, you can use the supplied Tubus spacers which are 8mm, these just mean there is less "self adjustment" needed in the rack when tightening. These are used for the outer fork mount.

4x bushings from worn out 9 speed mtb rear derailleur guide and tension pulleys.
These are 7mm wide. Since these were from my junk parts box and not removed from a derailleur i'm not 100% sure which specific rd they came from. These are used at the dropout eyelet.

Here is the hardware listed above mounted on the bolts. From top to bottom, inner fork mount, outer fork mount, dropout eyelet.

Closer view.

Here is the small difference between the 7 speed rd bushing used as the fork spacer and the ortlieb supplied spacer.

Outer fork bolt.

Fork spacer and inner bolt. You may be better off using the Tubus spacer with a washer on the inside of the rack mount.

Dropout inner nut.

Skewer position and clearance.

Rack clearance.

Rack mounted.

Last edited by metalrideroz; 11-05-21 at 03:24 AM. Reason: spelling
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