I made my wife ANOTHER carbon fiber bike

This is a carbon-fiber recumbent I built for my wife that can come apart and fit in a standard airline suitcase. It weighs 27 pounds INCLUDING everything you see here, pedals, fenders, dynamo hub, dynamo lights front and back -- and that dynamo light is also a USB charging station.

[@honzispg1]

Hi, nice work. How he solved the range of the derailleur. The Shimano Sora GS has a chain tensioning range of 41 teeth. With the cartridge 11/32 and crankset 52/39/30, Is the range of teeth 43. Its two more than recommended. This small range bothers me with my recumbent project.

[@SethJayson]

Actually, those are 11-34 cassettes, so it's 4 more than recommended. You can usually get away with this. You just need to make sure that you won't bind up the derailleur on the big/big combo, since that could destroy the thing. Leave the chain a bit too long and it just gets sloppy in the small/small combo as it can't take it all up. I could also have put on a wider-range microshift rear mech I've got down in the basement, but I picked this one to see if I could get it to work properly. It seems fine.

[@pierrenieuwoudt1167]

Wonderful workmanship, a real tribute to your skills. I can imagine that it took many hours of painstakingly detailed work and patience to get that superb result.

[@palmvictory]

Seth, you’re my hero, man. I can’t believe you built this *yourself*. This thing is beautiful.