Join Date: Jun 2004
Location: Hamilton, Ont, Canada
Bikes: 20-year old (upgraded) Supercycle Medalist, Specialized Hardrock, never ending assortment of mid-repair old 10-speeds
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I'm not sure I'd go the extra distance to use this on a normal hub, but I like the concept a lot. Notching a hub so that cogs slide on and off seems like so much less trouble, while being incredibly safer. No chainwhips, locktite, or stripped threads at inconvenient moments... That's why they now use it for cassettes on roadies and MTBs... I'm not sure about the rounded shape of these notches, that looks like it might generate wear over time when subjected to the stresses of fixed riding, but it does seem like it's worth looking at.