New answers tagged kids
You could always buy some new tubes with the valve set at a 45 degree angle. Schwalbe sell them for £5/6 depending on the size you need. Easiest way I'd say and saves you faffing about drilling holes or screwing valve extenders on and off.
Yes. Slime makes some valve extenders for Schrader valves , and if you have a Presta valve you can use a Presta to Schrader valve adapter (and if you really want, you can attach a Schrader valve extender to that, since you can buy the Schrader valve extenders at Walmart or whatever) . Some companies (like Topeak) make Presta valve extenders as well: ...
It's pretty easy if you have a spoke cutter than are willing to run a funny spoke pattern. I suggest buying (ideally second hand) a three speed hub and lacing it into the 16" rim yourself. With a wheel that small with a child on it there's no enough load to make strength an issue, so you can reasonably either lace a 20 spoke rim to a 36 spoke hub using ...
I don't think that its a good idea given that in a few months, you're going to want a 20 inch bicycle for the child. IGH's wouldn't work since the hub width is likely smaller than standard, and mounting a derailleur would be a problem as well. Also, if you were to find a compatible hub or whatever (given the 20 spoke constraint that andy256 mentioned in the ...
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