Thread: Shimano GRX RD-RX400 RD w/ 11-42 cassette
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Old 06-25-20, 06:25 PM
  #10  
996
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Originally Posted by Erik_A
it would work 10 sp 11-42 with GRX400 shifters or the latest Tiagra 10 speed shifters. But not 105 or Ultegra 10 speed shifters.

the point is to not need a Wolf Tooth Road Link, because a standard road 5701 or 6800 rear derailleur will shift 11-42.
Understood - thanks. Amazing how this can work 11-42 10 speed. Running it 1x won't be a problem?

Edit - let's say i'd like to run a 1x with a 30T chainring up front... is that too much range?

Thanks again.
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