A post about a post

by Thomas on January 26, 2011

Great basketball forwards know the importance of working in the post. Maybe if the Raptors were better at this, they could win a few games.

In seemingly unrelated news, The current rendition of dropout/slider, designed by the benevolent Mark Lepper, has been faithfully securing the rear wheel to mine, and many others’ bicycles.

This most recent version addressed issues such as 1×9 chain interference, as well as increased slider throw. The increase in throw allows for 2 benefits:

1) Those who fancy short chainstays can use the rearward holes. Those who fancy long, the frontward mounting location.

2) Those who fancy themselves lazy with bike maintenance can use the copious amount of throw to change cogs, and compensate for epic chain stretch (which will be enhanced by reluctance to bother with things such as lubricant).

However, it isn’t the capitalist way to wax poetic about the current offering, it is to improve, and improve some more. Taking careful stock of the design, it was obvious that the wheel was now happily moving to and fro, but the brake was still mounted by 2 diminutive holes. Surely, there must be a better way. And there is. More commonly found on the fork, the post mount offers direct brake to bicycle interface, without the need for extra bolts and adapter thingies. Not only would this shave precious grams (at least 5 or 6 of them!) but it also transmits the forces more nicely – the traditional IS mount relies almost exclusively on the shear strength of the mounting bolts to withstand the braking loads. Silly.

As the advantages become obvious, it has become of interest here in the lab to use the post to hold brakes in place, as much as Kevin Garnett uses it to drain deuces. With ever so coincidental timing, the aforementioned Mr. Lepper has been ever so kind as to deliver us with a new-new slider rendition, but it is incomplete – so, in the meantime, I’ve been working hard on the concept drawing for the new mounts on my own, which I thought I’d submit for your viewing below:

Coming along nicely, if I do say so myself.

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