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Old 01-14-22, 09:02 PM
  #8  
Prowler 
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Join Date: Nov 2013
Location: Near Pottstown, PA: 30 miles NW of Philadelphia
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Bikes: 2 Trek Mtn, Cannondale R600 road, 6 vintage road bikes

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I recently used the cyccommute approach shown above on the NDS for loosing an adjustable cup lock ring. 'Twas a very neglected bike and the lock ring was very tight/frozen/corroded on. I needed a lot of force and those thin wrenches slip off that thin ring quite easily. Used the same type large washer and spare adj cup but c-clamped the wrench to the washer. Snugged it all down with the crank bolt and grunted. The lock ring came loose without any slipping nor damage to the notches. Nice technique.
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