This is the SRAM Red 52/36 Tooth GXP Double Chainset
- Black Edition. Strong, smooth, responsive: the SRAM Red
- Black Edition Crankset is the perfect choice. The integrated carbon spiders design is sleek & incredibly stiff, allowing for efficient power transfer. The integrated carbon-spider construction is light & stiff for greater power transfer with less effort. SRAM Red Power Glide chainrings are designed to professional-grade shift, stiffness, & durability standards. Not including GXP cups.