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E*thirteen Helix R Guidering (3mm Offset) 3 Bolt 30t Gray CheckoutSpec= Manga Rails Color Black Rings 32 Number FM1749 Color Black Rings 32 Number of Chainrings Chain Retaining Single Crank Length (mm) 175 Crank Intended Use Mountain Drivetrain Speeds 11 Drivetrain Speeds 12 BB Included No Pedal Spindle 9 16" Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Chainline Hub Compatibility 141 148 Boost Hubs Defined Color Black BX Model Name STF933 Flat Bar V Brake Trigger Shifter Category Shifters Tooth profile is compatible with both Shimano and SRAM chains in both 11 and 12 speed Can be flipped to provide either a 52 or 55mm chainline
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