● ①Equipped with CDJ original pulley using AURUM+CF30 next generation resin (super engineering plastic). It has high strength comparable to aluminum, but is extremely lightweight at only about half the weight. It has excellent sliding resistance and is much quieter. ②Achieves further resistance reduction through the combination of guide pulley 12T and tension pulley 17T. There are no problems with shifting performance, so you can use it with confidence. ③Design a new cage design after determining the appropriate position for the larger tension pulley. ④The pulley cage finish comes in 6 colors (matte, clear, red, blue, yellow, green), allowing you to choose a color that matches a variety of bikes. ⑤ Compatible with rear cassettes up to 34T. ●Product specifications, etc. Compatible models: SHIMANO R9250/R8150 *Derailleur not included. *It is necessary to increase the number of chain links for installation.

● ①Equipped with CDJ original pulley using AURUM+CF30 next generation resin (super engineering plastic). It has high strength comparable to aluminum, but is extremely lightweight at only about half the weight. It has excellent sliding resistance and is much quieter. ②Achieves further resistance reduction through the combination of guide pulley 12T and tension pulley 17T. There are no problems with shifting performance, so you can use it with confidence. ③Design a new cage design after determining the appropriate position for the larger tension pulley. ④The pulley cage finish comes in 6 colors (matte, clear, red, blue, yellow, green), allowing you to choose a color that matches a variety of bikes. ⑤ Compatible with rear cassettes up to 34T. ●Product specifications, etc. Compatible models: SHIMANO R9250/R8150 *Derailleur not included. *It is necessary to increase the number of chain links for installation.


Size: ‎Small
Material: ‎Plastic
Packing size: ‎18.9 x 9.5 x 4.3 cm; 110 g