feature:

-Lightweight: The carbon fiber rear derailleur Puuleys is super light, weighing only 83g/0.18lb

- Reduce friction: save 60% friction resistance than 11T

-Smooth: The ceramic bearing is smooth and can save more than 2.4 watts

- Durable: full carbon fiber frame + ceramic bearing + 7075 aluminum guide wheel (CNC)

SD1- For Shimano R4600 R4700 R5700 R5800

(It can be used with 34T flywheel, if you use 36T flywheel, you need to change the upper guide wheel to 13T)

SD2-Suitable for Shimano R6700 R6770 R6800 R6870 R9000 R9070 (can be matched with 34T flywheel, if you use 36T flywheel, you need to change the upper guide wheel to 13T)

SD3-105 for Shimano R7000 (can match with 34T cassette)

SD4- Suitable for Shimano R8000/R8050/R8070/R9170/R9150/R9100 (can match with 34T flywheel)

SD5- for SRAM RED10S RED11S RIVAL10S RIVAL11S FORCE10S FORCE11S

(can be matched with 36T flywheel)

SD6 - for SRAM eTap

Note: Due to different lighting and screen settings, the color of this item may vary slightly from the picture.