Rear Dropout Modification
07-31-21, 04:29 PM
#1
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Rear Dropout Modification
Anyone ever modded a rear dropout to accept a derailleur hanger? Frame does not have hanger, older claw type. Can you drill and bolt on a hanger?
07-31-21, 04:36 PM
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You can purchase "claws" that bolt on, and accept a screw-on derailleur. The design of the claw is to be secured at the rear by a bolt into the slot, but the main clamping/securing force comes from the rear wheel.
If the dropout is sturdy enough, you could weld or braze a hanger on. Perhaps taking a new dropout as a donor.
If the dropout is sturdy enough, you could weld or braze a hanger on. Perhaps taking a new dropout as a donor.
07-31-21, 04:42 PM
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07-31-21, 04:52 PM
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Looks like these require bolt on axle?
07-31-21, 05:03 PM
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These are common and cheap. And, works fine with either bolt on or QR.
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08-01-21, 08:50 PM
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08-01-21, 09:21 PM
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Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
