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UD carbon hollow crank Forged Bolt AL7075 BB386EVO Krone AL7075 100% CNC Chainring bolts AL7075 Torx T-34 Suitable for Shimano and SRAM systems with 10-11 V
UD carbon hollow crank Forged Bolt AL7075 BB386EVO Krone AL7075 100% CNC Chainring bolts AL7075 Torx T-34 Suitable for Shimano and SRAM systems with 10-11 V