KOLOSSOS: INSTALLATION MANUAL

Step 1: Remove the Chain

With the bike securely mounted in a stand, remove the bicycle chain.

[Image Description: A bicycle chain is being detached from the rear derailleur and cassette using a chain tool.]

Step 2: Remove the Rear Wheel

Remove the rear wheel from the bicycle.

[Image Description: A person wearing black gloves is shown removing the rear wheel from a bicycle frame.]

Step 3: Shift Derailleur

Shift the rear derailleur to the lowest gear (largest cog position).

[Image Description: Close-up of a bicycle rear derailleur shifted to its largest cog on the cassette.]

Step 4: Remove Stop Pin

Remove the stop pin using a Phillips screwdriver.

[Image Description: A hand wearing a black glove uses a Phillips screwdriver to remove a small pin from the derailleur mechanism.]

Step 5: Release Spring Tension

Carefully allow the derailleur cage to rotate forward to release the spring tension.

[Image Description: The derailleur cage is shown rotating forward, away from the cassette, to relieve spring tension.]

Step 6: Remove Retention Pin

Remove the retention pin using a Torx T10 wrench. Be cautious: this bolt is made of a mix of aluminum and cheese (a figurative description for its delicate nature) and is factory installed with Loctite.

[Image Description: A hand wearing a black glove uses a Torx T10 wrench to loosen and remove a retention pin from the derailleur body.]

Step 7: Keep Bolt Safe

Keep the removed bolt in sight, as it will be used later in the installation.

[Image Description: A small bolt, likely the retention pin bolt, is held between the thumb and forefinger of a gloved hand, indicating it should be kept safe.]

Step 8: Remove Cage

Remove the derailleur cage from the derailleur body. Hold onto the spring and seal, as they will be reused.

[Image Description: The KOGEL Kolossos pulley cage is detached from the derailleur body. The internal spring and seal are visible and being held.]

Step 9: Remove Stop Pin (Again)

Remove the stop pin using a 2mm allen wrench. This is a very small part, so be careful not to lose it.

[Image Description: A hand wearing a black glove uses a 2mm allen wrench to remove a tiny stop pin from the Kolossos cage assembly.]

Step 10: Grease Spring

Apply a light coat of grease to the spring.

[Image Description: A gloved finger is applying a small amount of light grease to the coil spring of the derailleur.]

Step 11: Install Spring and Seal

Install the spring and seal onto the Kolossos cage. Note: There are three holes for adjusting spring tension. Start with the middle hole to test your setup.

• Use the right side hole for higher tension, suitable for rough roads or off-road use.
• Use the left side hole for less tension and lower friction, recommended for riding on smooth roads.

[Image Description: The KOGEL Kolossos cage is shown with the spring and seal being installed. Three distinct holes for attaching the spring are visible on the cage body.]

Step 12: Install Kolossos Cage

Install the Kolossos cage onto the derailleur body. Ensure the fragile seal is correctly aligned.

[Image Description: The KOGEL Kolossos cage is being mounted onto the derailleur body. A gloved hand is carefully aligning the seal before securing the cage.]

Step 13: Load Spring Tension

Rotate the cage backwards to load the spring tension. Also, check that the cage moves freely.

[Image Description: The derailleur cage is being rotated backward to tension the spring. A gloved hand is shown manipulating the cage, and its free movement is being checked.]

Step 14: Check Tension and Friction

You should feel only the spring tension, with no friction.

[Image Description: The fully installed KOGEL Kolossos cage on the rear derailleur is shown. The image emphasizes the spring tension and smooth operation of the cage.]

Step 15: Reinstall Stop Pin

Reinstall the stop pin. Use the left side threaded hole for short cage derailleurs and the right side hole for medium cage derailleurs.

[Image Description: A hand wearing a black glove is reinserting the stop pin into the derailleur. The image highlights the left hole for short cages and the right hole for medium cages.]

Step 16: Torque Bolt

Torque the relevant bolt to less than 1 Nm.

[Image Description: A torque wrench is shown near the cage bolt, indicating a precise torque setting is required (less than 1 Nm).]

Step 17: Reinstall Retention Pin

Reinstall the retention pin using a Torx T10 wrench. Torque: 1-2 Nm.

[Image Description: A Torx T10 wrench is used to reinstall the retention pin into the derailleur, with a torque specification of 1-2 Nm.]

Step 18: Adjust Derailleur Settings

Readjust the B-tension, upper and lower limits, and cable tension as you would for a regular derailleur installation. Once these adjustments are complete, the installation is finished.

[Image Description: A gloved hand is shown adjusting the B-tension screw on the rear derailleur as a final step.]