Possible conversion...not worth it?
#1
Thread Starter
Senior Member
Joined: Oct 2006
Posts: 175
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Possible conversion...not worth it?
So, I have a solid road bike...my Lamond is capable of more than I am right now for sure! But for those shorty, round-the-towner type rides, I sure could use something a bit more awesome...something that won't require me to change my shoes if I want to ride. I think fixed gear (maybe ss) would be the way to go...so...
I have this old schwinn road bike....about 30 years old, no idea on the model, steel frame...was running more-or-less functionally about a year ago. It's spent a lot of time not moving, leaned up in back of a house, lots of rain...
I know the thing is covered in rust...and most parts would probably just need to be replaced (or gotten rid of in the roadie -> fixie conversion)....but is it worth it to try? How much am I going to have to spend to get the cheapest possible conversion to a rideable fixie? Is it worth the value of the pile of rust I've got sitting there?
I have this old schwinn road bike....about 30 years old, no idea on the model, steel frame...was running more-or-less functionally about a year ago. It's spent a lot of time not moving, leaned up in back of a house, lots of rain...
I know the thing is covered in rust...and most parts would probably just need to be replaced (or gotten rid of in the roadie -> fixie conversion)....but is it worth it to try? How much am I going to have to spend to get the cheapest possible conversion to a rideable fixie? Is it worth the value of the pile of rust I've got sitting there?
#3
Banned.
Joined: Jul 2006
Posts: 994
Likes: 1
From: philly
strip it down to the frameset, strip it down to bare metal, paint it with a couple of spraybombs, get a decent rear wheel (~$150), use the old bb if it's not munged up (see the next paragraph...), keep your bars & stem if you can. You might need to replace the headset if it's really bad, but chances are you can take it apart & clean/lube it.
Does it have a 3-piece crankset, or a 1-piece? (3-piece is where the drive side crank has a 3 - 5-pronged spider to which the chainring is attached) If it has a 3-piece, you're all set. Clean it up, decide what ring you want to use. 3-piece also means that it will use a different bb than an outdated 1-piece. If you have a 1-piece crank, you can just take off the front derailleur and carry the extra chainring around until you come up with a more permanent solution. The retail portion of Sheldon Brown's site (Harris Cyclery) has a part that will allow you to mount a modern bb in your 1-piece shell (which is larger than the bb shell of a frame intended to use a 3-piece crankset), if it turns out that's the type of frame you have.
Get a cog & lockring to go on your new rear wheel. Use Sheldon Brown's gear inch calculator to determine what size cog you need. about 70 gear inches seems to be a pretty popular number.
Shorten your chain, or get a new one. 1/8" would be better for a fixie than the 3/32" chain it comes with, IMO, so make sure your cog & chain width match up. As for the chainring, it's alright to leave that 3/32". Shouldn't cause any problems. My drivetrain is 1/8" with a 3/32" chainring, simply because I haven't bothered to get a new chainring yet.
Done.
make any sense?
Does it have a 3-piece crankset, or a 1-piece? (3-piece is where the drive side crank has a 3 - 5-pronged spider to which the chainring is attached) If it has a 3-piece, you're all set. Clean it up, decide what ring you want to use. 3-piece also means that it will use a different bb than an outdated 1-piece. If you have a 1-piece crank, you can just take off the front derailleur and carry the extra chainring around until you come up with a more permanent solution. The retail portion of Sheldon Brown's site (Harris Cyclery) has a part that will allow you to mount a modern bb in your 1-piece shell (which is larger than the bb shell of a frame intended to use a 3-piece crankset), if it turns out that's the type of frame you have.
Get a cog & lockring to go on your new rear wheel. Use Sheldon Brown's gear inch calculator to determine what size cog you need. about 70 gear inches seems to be a pretty popular number.
Shorten your chain, or get a new one. 1/8" would be better for a fixie than the 3/32" chain it comes with, IMO, so make sure your cog & chain width match up. As for the chainring, it's alright to leave that 3/32". Shouldn't cause any problems. My drivetrain is 1/8" with a 3/32" chainring, simply because I haven't bothered to get a new chainring yet.
Done.
make any sense?
#5
Newbie
Joined: Apr 2007
Posts: 2
Likes: 0
It is also possible to sweat out the rear drops and put in track drops. Check out my site www.clarkcustomcycles.com and look @ the rattle can racer. It is an Bianchi Team frame and it got two more years of life before it ripped @ the ss/bb joint not my fault. If your bike has forward facing drops you can get away w/ just a track wheel and whatever parts it needs to get running. Good luck fix gears rock.
#6
One Hep Cat
Joined: Jun 2005
Posts: 748
Likes: 0
From: N 44.91577 W093.25327
Bikes: Surly Cross-Check (commuter), Lemond Sarthe (sports car), Schwinn fixed gear conversion (for fun)
I did the same thing to an old but cheap Schwinn World Sport. It's not a great frame and it's a little long in the wheel base for my tastes, but I "invested" in a decent set of wheels and a single speed Sugino crank and kept the other parts for now. I figured if I hated it, I could re-sell the wheels or convert them road hubs. It turns out that I like the fixed gear riding a lot. Now I am scoping for some bull horns and if I can find it, a better frame. I will just move my bits and peices over to a better frame if I find one. I would go for it.
I second Schnee's comment on reading Sheldon - I learned a ton from Sheldon's articles.
I second Schnee's comment on reading Sheldon - I learned a ton from Sheldon's articles.






