[QUOTE=Happy Feet;21573624]I'm building that very sort of thing right now. SS, not FG. There's a thread about it here:
A Single Barbarian... MTB SS retrofit
Originally Posted by
Happy Feet
I'm building that very sort of thing right now. SS, not FG. There's a thread about it here:
A Single Barbarian... MTB SS retrofit
Basically two chainrings and two cogs, that take the same chain. Both are magic gear ratios. No derailers or tensioners. It's called a dinglespeed. A bit easier than a flip flop because you don't have to remove and flip the wheel. Just loosen the QR unseat the wheel, move the chain, and reseat and set the QR.
If you don't have it already, seriously consider carrying a Pedros Trixie fix gear wrench. Makes the chain swap very easy and clean. Tool has a very good hub nut wrench so you can leave what you are using at home and the lockring spanner is perfect for picking up the chain and moving it to another cog or chainring.
If you do go to flipping wheels - another trick -a chain peg. Easy way to do that: take a 4mm screw (my faulty memory says 4mm is the near universal fender and toeclip screw) and run it into your fender eye on the dropout from the wheel side. Pan head screws work really well. Flat heads might even be better. I use a nut, also on the inside, tightened against the dropout to keep it locked in place. That way, you can tailor how far out the peg sticks. Further inboard is easier but different wheels and cogs can impact the optimum placement. Now, with the Trixie, you can just lift the chain off the cog or freewheel, drop it on your new peg, flip the wheel and put the chain back on. That's how I get my 2 minute wheel flips.
Ben