we're getting ready to sell our b-ready and I noticed that the axel is broken on the rear wheel. It's probably been 18 months-2 years since we last used it, so who knows how it happened.

Replacement kit of all 4 wheels on their website is $90, ouch. And out of stock. Anyone know how we could buy a single wheel? I'm not seeing anything on either Amz or eBay.