Old 03-29-20 | 09:55 AM
  #2  
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dsbrantjr
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From: Roswell, GA

Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta

Originally Posted by bpcyclist
...Sounds quite similar to the sound of a rim brake with metal shards hitting a brake track--very scrapy sounding....
Did you check that? Perhaps one of your wheels is flexing under power/load and contacting a brake pad.
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