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Shimano OT-RS900 Rear Derailleur Loop

The Shimano OT-RS900 Rear Derailleur Loop is a 240mm section of RS800 housing with an alloy derailleur ferrule and plastic inbound sealed ferrule. It is specified for use with Shimano's R9100, R8000, RX800, R7000 series Shadow style rear derailleurs. If you are running one of the 2nd generation 11-speed road rear derailleurs, you NEED this section of housing for proper function. The entry angle into the adjuster on the derailleur and smaller loop dictates the housing be more flexible than the OT-SP41 housing used elsewhere on the drivetrain to reduce drag and ensure proper function. This loop will work properly with the Polymer coated cables, as well as the Optislik cables (which are stock with R7000 drivetrains).

Helpful information: When you buy a Shimano R9100, R8000, RX800, R7000 series rear derailleur, this loop is now included. It appears Shimano has stopped including it with the cable set that comes with the Dual Control Levers to avoid confusion. Shimano also sells a complete Polymer cableset that includes this OT-RS900 loop, under their part number Y0BM98010 (Black), and a second Polymer cableset (Y63Z98940- Black) that does not include this loop.

Details

  • 240mm section of OT-RS800 flexible derailleur housing
  • Includes alloy derailleur ferrule, plastic sealed inbound ferrule
  • Designed for use with Shimano's Polymer or Optislik SUS cables
  • Required for rear derailleur loop on 2nd gen 11-spd road rear derailleurs
  • Compatible with: R9100, R8000, RX800, R7000 series rear derailleurs
  • Sold individually
  • Color: Black
  • Weight: 9.8 grams
$3.00
Sale Price
Reg Price $4.00

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