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Old 05-08-11, 04:17 PM   #1
cmcanulty
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Front Derailleur folding bicycles

I am trying to add front derailleurs to my 2 folding Downtube bikes, pictures attached. The problem is the seat tube angle means that they have to be set further back than normal in relation to the large chainring. I have clamps that fit and the necessary clearance for the 2 chainrings (22 & 42). I only need the largest 3 or 4 cogs with the 22 t chainring. Will it be a no go if the derailleur sets a bit behind the highpoint of the large Chainring? as long as I leave enough clearance? I considered using the forward tube on the mini but that set the cage too high to clear chain on small ring.
Attached Images
File Type: jpg NSBlueStanding.jpg (34.3 KB, 9 views)
File Type: jpg tn_DT Bike 2 0231.jpg (10.0 KB, 8 views)
File Type: jpg tn_DT Bike 2 007.jpg (90.3 KB, 7 views)
File Type: jpg tn_DCP_0048.jpg (55.4 KB, 6 views)
File Type: jpg tn_DT Bike 2 009.jpg (10.1 KB, 6 views)
File Type: jpg tn_DT Bike 027.jpg (10.4 KB, 5 views)
File Type: jpg DT_Mini.jpg (40.2 KB, 7 views)

Last edited by cmcanulty; 05-08-11 at 04:25 PM.
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Old 05-08-11, 04:24 PM   #2
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your best bet is to just try it.
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Old 05-08-11, 04:27 PM   #3
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Very specialist question, I think you will get better & more appropriate on the Folding Bikes forum than here.
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