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Product Description 1x 94 BCD Variable Tooth Chainrings The NSB 1x Variable Tooth Chainrings uses a ‘Thin-Thick’ variable tooth thickness mated with a standard chainring tooth profile to help retain the chain on the front ring during all types of riding. By increasing the tooth thickness on half of the ring’s teeth, the chain is given less room to move and virtually eliminates chain drop when running a single front chainring. These rings are specifically made for SRAM X01 cranksets. Specifications: 94mm Bolt Diameter Circle (4 bolt 94 BCD) Bottom Bracket Types: BB30 & GXP Chainline: 49.5mm Machined from solid 7075 T6 Aluminum Anodized Black with Laser Etched Graphics Precision CNC Machined in Whistler, BC Weight:  
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