In "The Dancing Chain", there are line drawings of several 1x3 derailleur setups
from the 1930s that are fitted with little chain guides over the chainwheel to prevent tossing the chain. In the 1960s Fred DeLong took some high-speed pictures of a 1x set up on a stand in a shop to understand why it happens. The new millennium, and it's still being "discovered".
The other way to keep from tossing the chain on a 1x set up. This technique has been working well since the 1890s.
What is going on at the rear axle there?
I wonder if my chain isn't still a link or two too long. It seems to throw in the 7-8-9 (high gears) end of the cassette. One would think that the Deore would take up the slack, but maybe not...
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--Ben
2006 Trek SU100, 2009 Motobecane Fantom CX, 2011 Motobecane Fantom Cross Uno, and a Bakfiets
Previously: 2000 Trek 4500 (2000-2003), 2003 Novara Randonee (2003-2006), 2003 Giant Rainier (2003-2008), 2005 Xootr Swift (2005-2007), 2007 Nashbar 1x9 (2007-2011), 2011 Windsor Shetland (2011-2014), 2008 Citizen Folder (2015)
Non-Bike hardware: MX Linux / BunsenLabs Linux / Raspbian / Mac OS 10.6 / Android 7