• offer the flexibility of running one rack (V-Rack or Adventure Rack) alone, without a snap deck, no rattle.
• provide a theft deterrent, making it challenging to disassemble the Xtracycle platform without tools.
• feature an o-ring inside of the collar, block water from seeping into your Xtracycle or Big Dummy uprights.
• serve to increase pressure on SnapDecks that are not secured by the existing V-rack tension.

Big Dummy Owners: Due to the larger diameter of the Big Dummy uprights, Whatchamacollars will need to be slightly expanded to fit smoothly over your uprights. Photos and instructions are available on the Xtracycle Blog.