Thread: Klein Quantum Rebuild
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Old 06-04-21 | 11:23 AM
  #14  
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mstateglfr
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Joined: Aug 2014
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From: Des Moines, IA

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Originally Posted by clichty
I was planning on going with a used 11 speed ultegra. I thought the bottom bracket would still work?
modern Ultegra cranksets on threaded shells use an external HT2 bottom bracket. That is different from what your bike currently has.
an external threaded HT2 bb costs $25 or 30.
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