Detailed Specifications Brand: Kogel Bearings Model: Kolossos Oversized Derailleur Cage w/ inner cage (OSPW) Pulley Sizes: 14T upper / 19T lower, ceramic bearing pulleys Compatibility: SRAM Red and Force eTap AXS (12-speed) derailleurs SRAM Red eTap A2 (11-speed, post Sept 2020 with Hydro Clutch) Not Compatible With: Original pre-Sept 2020 11-speed SRAM eTap derailleurs Fits: Short and mid cage versions of Red/Force eTap derailleurs Use: Road, gravel, cyclocross, endurance riding Color: Red Includes: Kolossos derailleur cage assembly with oversized pulleys and hardware Warranty: Kogel lifetime limited warranty Additional Features Oversized ceramic pulley system drastically reduces drivetrain friction for smoother pedaling efficiency Long-tooth lower pulley enhances chain retention and stability under load Integrated chain catcher helps prevent jams and derailments Designed for durability and shifting precision in demanding off-road or gravel conditions Larger pulley diameters reduce chain articulation for lower resistance and longer component life Important Usage Notes Specifically designed for SRAM Red/Force eTap AXS (12-speed) and compatible SRAM Red eTap A2 Hydro Clutch (11-speed) derailleurs Not compatible with original pre-Sept 2020 SRAM 11-speed eTap models Installation may require lengthening your chain to accommodate larger pulley wheels For optimal performance, ensure proper derailleur adjustment, chain length, and B-tension setup Regular maintenance recommended: clean and lubricate pulleys frequently for extended life Riding Impressions The Kogel Kolossos eTap system transforms your drivetrain with oversized ceramic pulleys that deliver free speed and improved efficiency. Riders report quieter operation, more consistent shifting, and reduced drivetrain drag — especially noticeable during long road rides, gravel races, and time trial efforts. The stiff cage construction paired with precision ceramic bearings ensures reliable chain management in every riding condition. Disclosure Genuine Kogel Bearings product, retail packaged, with full manufacturer warranty. Includes Kolossos oversized derailleur cage assembly with 14T/19T ceramic pulleys in red finish. Compatible with SRAM Red/Force eTap AXS 12-speed and SRAM Red eTap A2 Hydro Clutch (11-speed, post 9/2020). Derailleur, cassette, and chain not included. Covered under Kogel’s lifetime limited warranty (proof of purchase required).
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