SRAM X.4 Rear Long Cage Bicycle Derailleur 7/8 Speed X4 7/8-speed MTB rear derailleur Aluminum outer link and composite inner link Steel outer cage and composite inner cage Speed: 7/8 Speed Maximum Cog Size: 34 Chain Capacity: 45 Cage Length: Long Ratio: 1 to 1 Ratio SRAM Color: Black Weight: 280 grams
