I have a beautiful vintage Trek T200 tandem that I was about to sell on ebay because I had given up on working out how my 4 year old could ride with me, until someone only today advised me of the existence of stoker kits for tandems. What a revelation, if it wasn't for this kind person taking the time to show me his tandem with the kit installed, I would have sold my bike and lost the opportunity to ride with my little boy (he uses a trailer at the moment but I don't like it).
It seems that the kit (incl bottom bracket, 2 chain rings, cranks, shim, chain etc) is quite expensive to buy new, so I thought I'd just enquire as to whether anyone has one that their kids have outgrown that they'd be prepared to sell to me.
I need one that will suit a 1.25 inch seat tube. Thanks.