SRAM Hub Bearing Set Rear includes 1-6903 & 1-63803D28 For X0/Rise 60 B1/Roam 30/Roam 40/Rail 40 Fork Type-Not Included No Spider Included Drivetrain Speeds

No Spider Included Drivetrain Speeds 12 Chainring BCD Direct Mount Chainline/Hub Compatibility 141/148 Boost Hubs Color Black Crank Length (mm) 165 Crank Intended Use Mountain Weight 630 BB Included No Pedal Spindle 9/16" Spindle Interface Type Shimano Hollowtech II Defined Color Black keyword search FC-M8120 Size 165Mm

Gum-X Compound

This is paired with a bladed groove structure that surrounds the dust cover

K50 Silver

Supports frame design flexibility and compatibility

SRAM Hub Bearing Set Rear includes 1-6903 & 1-63803D28 For X0/Rise 60 B1/Roam 30/Roam 40/Rail 40 Fork Type-Not Included No Spider Included Drivetrain SpeedsOriginal equipment sealed bearings fit many SRAM wheels and hubs. Replacement OE bearings Material Steel Bearing I. D. (mm) 17 Bearing O. D. (mm) 28 Thickness 7