Bigger Is Better
Oversized derailleur pulleys are all the rage nowadays. Big derailleur pulleys cause less deflection in the chain and slower rotations in the bearings.
Both lead to less friction and a more efficient power transfer between legs and wheels.

Kolossal Performance
Kogel’s goal was to build a cage so stiff that it holds the chain like a stock cage, while offering all the benefits of low drag oversized pulleys. 
Kolossos is 3x stiffer than the main competitor product and 2x stiffer compared to the original pulley cage on your derailleur

Kogel Oversized Derailleur Cages are:-
** Built to offer low friction while maintaining shifting accuracy.
** Built for road as well as off-road use, we are not here to restrict your adventures
** Engineered with a long-tooth profile on lower pulley for better chain retention.

Kogel Oversized Derailleur Cages Feature:-
** 2-year Guaranteed Performance Warranty on the cages, so you can feel confident and secure about your next two seasons of riding
** Design offering low friction AND shifting accuracy.
** Long-tooth profile on lower pulley for better chain retention.
** Chain catcher on lower pulley to prevent chain jams.
** No limits on-road and off-road compatibility.
** SS (short) cage and GS (medium) cage fit and easy installation right out of the box.
** Reduced drag associated with clutch derailleurs and 1x setups

Original w/ Box
100% MY set w/ warranty

PM now for more INFO

️Pro Bike Cycle Shop
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+6016-4117586 / +6017-7327586
No. 22G, Jalan Terbilang, Taman Terbilang Bagan Ajam, 13000 Butterworth