SRAM, Rival 1x XPLR E1, Crankset, Speed: 12/13, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 42, DUB, 160mm, Black, Road

• Wide chainline for compatibility with Full Mount rear derailleurs
• Longer DUB Wide crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands
• Compatible with 135, 142 and Boost rear spacing
• SRAM Model ID: FC-RIV-1W-E1