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Profile Design Sonic Ergo 39a Aerobar - Aluminum 400mm BlackProfile Design Sonic Ergo 39a Aerobar Aluminum 400mm Black. The Sonic Ergo 39a is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is of course to get the rider into a fast position despite a fairly minimalist appearance the Sonic Ergo offers a comprehensive fit range for exactly this purpose. The Sonic bracket offers an extensive fit range low weight and easy adjustment along

Captures running dynamics — including vertical oscillation

} HYDRA - MTN - Rear Bearing Kit - MS FH (1x6804

Chainline/Hub Compatibility 141/148 Boost Hubs Color Bronze Defined Color Brown Direct Mount Type Direct Mount SRAM Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Material Aluminum Offset 3 Ring Position/Type Chain Retaining Single Ring Round or Oval Round Tooth Count 28

Not compatible with carbon rails

9mm cable stroke

Mounts using four connection points to provide stability on rougher trails

Kit includes 10m of transparent Velotape and two high quality tubeless valves with removable cores

true concave shape and rounded perimeter

Wolf Tooth’s patented Drop-Stop wide/narrow tooth profile provides the ultimate chain retention and mud-shedding ability

Cassette Body Type SRAM XDR Defined Color Gray Hub/Brake Compatibility 6-Bolt Disc ISO Diameter 622 / road / 29" Rear Axle 12mm Thru x 148mm Tire Type Tubeless Ready Valve Presta Wheel Size 29"

} For replacement of original XX

}Shimano XT RD-M8100 Rear Derailleur Tension and Guide Pulley Set

Exchange/Return Notes