Shimano Ultegra RD-R8000GS 11 speed derailleurIt allows you to reduce the shifting effort on the lever, while being safe, fast and accurate at the same time. The group offers two specific gears: one for cassettes 11-25 and 11-30 and another for cassettes 11-28 and 11-34, ensuring a smooth advance even in the highest and steepest mountainous areas. Shimano Ultegra RD-R8000GS 11 speed derailleurIt allows you to reduce the shifting effort on the lever, while being safe, fast and accurate at the same time. The group offers two specific gears: one for cassettes 11-25 and 11-30 and another for cassettes 11-28 and 11-34, ensuring a smooth advance even in the highest and steepest mountainous areas.The RD-R8000GS derailleur adopts the low profile of the Shimano Shadow Dura Ace derailleur, to fit perfectly under the cassette, free from any danger.The long box gearbox (GS) covers developments 11-25 to 11-34.Weight according to manufacturer: 200grReference code: IRDR8000GS