I’ve gone through several plastic feet on the KickBack, mounted to my Big Dummy. I’ve grown tired of purchasing replacement kits to source the plastic feet, as the kits are relatively expensive and I don’t need all the extra parts they provide. I’ve across a couple great ideas from others:

http://andy-projects.blogspot.com/2013/08/xtracycle-kickback-kickstand-fixes.html

and

https://jnyyz.wordpress.com/2012/03/27/extra-feet-for-the-xtracycle/

So, I followed their advice, in particular the advice in the second link – going with vinyl caps instead of rubber ones. Based on this information, I purchased a couple types of caps/feet at Menards:

https://www.menards.com/main/home-decor/furniture/casters-furniture-hardware/grips-pads-tips/shepherd-7-8-black-hi-vinyl-leg-tips/p-2718333.htm

and

http://www.menards.com/main/furnitureutilityhardware/78inch-vinyl-hi-tips-black/p-1469292.htm?plckReviews=true

I placed the caps, from the first link, on the KickBack – they fit like a champ and so far seem to be working just fine.

Multiple sets of replacement feet for 1/10 the OEM cost is a bargain. Thanks, Andy and Prof. from Toronto. Now I need to figure out a cheap and better way to replace the KickBack’s spring.

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5/6/2017 UPDATE:

Was doing some post-winter maintenance on my Big Dummy and noticed the 7/8-inch chair tips were both punctured and I believe I had just put fresh ones on a year ago. All’s good. I removed the punctured ones with a utility knife and tossed a couple new ones on. Menards still carries them, so it looks like I can pick up another 4-pack of the 7/8-inch size.