Shimano SM-AD91 Clamp for Dura-Ace/Ultegra/105/GRX Braze-on Front Derailleur - black/31.8 mm

Shimano SM-AD91 Clamp for Dura-Ace/Ultegra/105/GRX Braze-on Front Derailleur

Item number: 51452
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Shimano Clamp SM-AD91 for braze-on front derailleur - Makes clamp mounting possible


With the Shimano SM-AD91 clamp, mechanical and electronic braze-on front derailleurs of the Dura-Ace, Ultegra, 105 and GRX groupsets can be attached to frames without braze-on sockets. The clamp is made of aluminium and is available for 34.9 mm as well as for 31.8 mm seat tubes. The latter version also comes with a shim which makes the clamp compatible with 28.6 mm seat tubes.

Technical Information:

Material:
aluminium
Sizes:
31.8 mm (28.6 mm), 34.9 mm

Compatibility:

  • FD-R9250
  • FD-R9100
  • FD-R9150
  • FD-R8150
  • FD-R8000
  • FD-R8050
  • FD-R7150
  • FD-R7100
  • FD-R7000
  • FD-RX820
  • FD-RX810
  • FD-RX815
  • FD-RX400
  • also suitable as replacement for the sold-out clamp SM-AD67

Manufacturer Numbers:

31.8 mm:
I-SMAD91MS
34.9 mm:
I-SMAD91L

Contents:

  • 1 x Shimano SM-AD91 shim
  • 1 x 28.6 mm adapter (only 31.8 mm version)
  • 1 x bolt


  • 100 day return period
  • Online since 1998

Models:

  • black/31.8 mm, in stock
    9.51€
  • black/34.9 mm, in stock
    10.38€

Customer Reviews (8)

4.5

Customer Reviews (8)

4.5/5.0
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by mark R. on 13.03.2019
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item: black/31.8 mm

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