KOGeL Shimano Dura Ace R9100 Oversized Derailleur Cage Installation Guide

: June 9, 2024
: KOGEL

Table of Contents

Introduction
TOOLS NEEDED FOR THIS INSTALLATION
CUSTOMER SUPPORT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

KOGeL Shimano Dura Ace R9100 Oversized Derailleur Cage Installation Guide

Introduction

This manual is for the Dura Ace R9200 and R9100 and Ultegra R8100 and R8000. The 12 speed cages are backwards compatible with 11
speed, but not forwards compatible. It will fit on both mechanical and Di2 derailleurs with the same procedure. It will fit on the short
(SS) and medium (GS) length models.

TOOLS NEEDED FOR THIS INSTALLATION

Torx T10
2mm allen
Phillips screwdriver
Chain tool
Light grease
New chain, since the Kolossos cage requires a few extra links compared to the stock setup.

STEP 1:
With the bike secure in the stand, remove the chain.
STEP 2:
Remove the rear wheel.
STEP 3:
Then shift the derailleur to the lowest gear or the largest cog position.
STEP 4:
Remove the stop pin with a Philips screwdriver.
STEP 5:
Carefully let the cage rotate forward to release the spring tension on the cage.
STEP 6:
Remove the retention pin with a Torx T10 wrench.
Be careful: Use a sharp tool. This bolt is made of a mix of aluminum and cheese (not really cheese.)
It is also factory installed with Loctite.
STEP 7:
We will be using this bolt later. Keep it in sight!
STEP 8:
Remove the cage from the derailleur body and hold on to the spring and seal. We will be using these later in the installation.
STEP 9:
Remove the stop pin with a 2mm allen wrench. It’s a teeny tiny part. Make sure you don’t lose it!
STEP 10:
Apply a light grease to the spring.
STEP 11:
Install the spring and seal on the Kolossos cage.
Note: there are three holes for spring tension. Start with the middle to test your setup.
Use the right side hole for higher tension on rough roads or off road use.
Use the left side hole for less tension and lower friction if you know you will be riding on smooth roads.
STEP 12:
Install the Kolossos cage onto the derailleur body.
Make sure to line up the fragile seal correctly.
STEP 13:
Rotate the cage backwards to load the spring tension.
Also check if the cage moves freely.
STEP 14:
You should only feel the spring tension, no friction.
STEP 15:
Reinstall the stop pin. The left side threaded hole for short cage derailleurs, the right side is for medium cage derailleurs.
STEP 16:
Torque: less than 1Nm
STEP 17:
Reinstall the retention pin with a Torx T10
STEP 18:
Readjust the B-tension, upper and lower limits and cable tension as you would for a regular derailleur installation and you are golden!