Product Description

Derailleur hanger, gear mech hanger, dropout replacement for Trek (# W524188) bike models:

  • Trek Boone - 2018-2019
  • Trek Domane ALR Disc - 2018-2019
  • Trek Domane SL Disc Thru Axle - 2017-2019
  • Trek Domane SLR Disc - 2017-2019
  • Trek Emonda ALR Disc - 2019
  • Trek Emonda SL Disc - 2018-2019
  • Trek Emonda SLR Disc - 2018-2019
  • Trek Madone SL Disc - 2019
  • Trek Madone SLR Disc - 2019

D781 specially redesigned for compatibility of up to 36T cassettes, when OEM part can only be used with 28T cassette.

Rear derailleur hanger manufactured by PILO. ISO 9001 2015 certified.
  • CNC machined 6061 T6511 ASTM B221 aluminium.
  • Bolts included.
  • Pilo catalog number: D781
  • AKA mech hanger, gear hanger: #W524188
For any questions please contact us or send an email to:
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To be sure if this the right part, please send us photos of:
1. Your derailleur hanger from both sides;
2. And if possible bike‘s frame part photos, where dropout was attached.

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Shipping information
With UPS delivery worldwide 2-5 working days.
With POST delivery 1-4 weeks worldwide.
100% satisfaction guarantee
We have a 100% money back satisfaction guarantee policy.
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