When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Flailing arms and indoors rarely go together well, I'll wait until the christmas tree has gone.
I'm sure I've seen a training aid for these, like a little wheel at the back.
I realise that just makes it a bike, but I swear it's true.
I'm off for a google.