Originally Posted by
RoLo50312
LOL. I just checked and the chain is way too long for the 18-30 combo and too short to reach the 48-13 combo. I think I’ll just keep the saddle and donate the bike to the co-op where it can be used for parts. Or if someone were to remove the 18 up front and put in a 28 and then put on a new chain it might be a decent bike. Interesting thing that was done to this bike...
It’s not as silly as you think. Perhaps an 18 is a bit small but I run a 20 tooth inner on a number of bikes with 11-34 and 11-36 cassettes. It works just fine and I find the 15” low to be highly useful in a number of situations. I actually modify 104/64 external bearing bottom bracket cranks to accept a 20 tooth inner. This is a modified crank with a 46/34/20 and an 11-36 9 speed cassette. It’s an even wider range than the one you have.
Untitled by
Stuart Black, on Flickr
The purple bit is may be an
Avid MicroAdaptor or it might be a
Mountain Tamer Triple adapter. It looks like the cog is on old freewheel cog rather than a bolted on chainring. The problem you are having with the chain may be the fault of the rear derailer. It looks like it has a shorter arm that can’t wrap the proper amount of chain. A longer derailer would help. The arm may be sticky as well. It should be folded back further. Put a new derailer on it and I think you’ll find that it works just fine.
Last edited by cyccommute; 06-11-20 at 05:54 PM.