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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Aero Kolossos is built with Kogel ceramic bearings and road seals
perfect for handling the varied stresses encountered during off-road rides or daily commutes
and power transfer
like Park Tool BBT-9 or similar
Shimano Oversized Derailleur Cage - GRX 2X and Ultegra RX800 __v9_bump Aero Kolossos is built withOversized ceramic pulley systems are an excellent way of reducing the additional friction caused by clutch derailleurs. Kolossos is the Greek word for a statue, much larger than the original subject. Seems fitting for an oversized derailleur cage. Imagine the performance of replacing your stock pulleys with a ceramic 12 tooth top pulley and a 19 tooth bottom pulley built on the stiffest cage on the market. Besides reduced friction, this cage is built
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