Retro to an old Schwinn
Just a couple of questions from a newbie!!!
I have a 15 year old Schwinn 21 speed mountain bike. The bike is in great condition with the exception of the derailer, and one of the shifters, that broke last year. I want to use this bike as a spare to take to work. Can I convert to a 8 speed? Do I have to replace the front derailer with the rear? Which derailer would you use? And what shifters?
Any help would be great and thanks!
Originally Posted by ray0464
What model schwinn ya got? You will get more info on the retro board, and post a pic, we all like to see the older rides *wink*
Converting to 8/9 spd will require a new hub at a minimum (& shifter if you don't have a functioning thumb shifter that can be used on friction mode for 8 spd). With a new hub you'll need to rebuild the rear wheel (new spokes, nipples + cost of building it up), so it'd probably be cheaper to get a whole new rear wheel.
which shifter & derailler broke, the front or rear? for a spare bike you may be able to set it up as a 1 x 7 speeder if the rear derailler & shifter are working as is & you don't need the gearing range.
these days, deore or lx is best bang for the buck.
Another potential issue is the spacing of the rear triangle (if you want to "upgrade" to 8/9 spd), but if it's early 90's is should be the current standard width, and not much of a problem for a steel frame bikes, perhaps a tight squeeze w/ a new hub.
all of shimano higher end stuff (deore and up) is now 9spd (same hub width as 8 spd, but shifters & rear cassette don't work w/ 7 or 8spd stuff), but you can use a 9spd derailler with 7 spd stuff.
There's still plenty of decent 7 spd stuff to be found on ebay and some internet retailers (ie harris cyclery should have some), as it may be easier & cheaper to stick with what ya got for a 'commuter/spare' bike.
Last edited by logbiter; 01-23-2006 at 09:28 AM.