[QUOTE]Originally posted by miamijim
How long of a list do you want?

1. cost. millions to develop, millions lost due to poor sales
2. lawyers. millions to pay out when someone shifts into high gear going down hill then cant stop at the stop sign at the bottom.

Actually, Bikesmith in Seattle makes a two speed fixed gear hub out of a modified coaster brake hub. And as someone's going to point out soon enough anyway, according to Sheldon Brown it's at least theoretically possible to convert a Sturmey Archer three speed hub to a two speed fix. One of the three speed SA fixed hubs from the 50s recently went for about $380 on ebay.
[QUOTE]
Anyone else want to continue the list?

Tell people they need a hand brake or two. I mean, really.
If it were really a prohibitive lawyer thing you couldn't buy a track bike w/o signing like a million disclaimers.

Bill