SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black MFPN=Y1VY00030 5mm hex on both ends

5mm hex on both ends of the axle for easy installation and removal

With 32-spokes front and rear 6061 alloy rims stainless steel rim eyelets and easily replaceable standard spokes the Arch S1 is made for maximum durability

For MTB or Road use

BB Included No Chainline/Hub Compatibility 141/148 Boost Hubs Chainring BCD 110 Shimano Asymmetric Color Black Crank Length (mm) 170 Defined Color Black Designed for ebike Yes Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Number of Chainrings Double Pedal Spindle 9/16" Rings 36/22 Spindle Interface Type Shimano Hollowtech II

(mm) 18 Bearing O

SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black MFPN=Y1VY00030 5mm hex on both endsSRAM DUB BB30 Bottom Bracket BB30 73mm MTB Boost 55mm Chainline Black. The SRAM DUB bottom bracket series has a simple job to connect crankarms and protect the smooth long lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard simplifying crankarm compatibility. Designed for use with SRAM Boost cranksets with 55mm chainlines Gutter Seal Technology drastically improves