Surly Stainless Steel Ring 36t x 104mm MPFN-6460615 included are two tape strips

included are two tape strips to complete the installation with a clean look that stays put

Cups have outboard bearings and are typically used in BB shells with widths from 68mm to 100mm

External width = 81mm

}Phil Wood R8 Sealed Cartridge Bearing Sold Individually

Surly Stainless Steel Ring 36t x 104mm MPFN-6460615 included are two tape stripsSurly Stainless Steel Ring 36t x 104mm. Surly Stainless 4 bolt Chainrings. No ramps or shift gates Surly rings paired with 9 speed chains will have a tight fit. No compatibility with 10 or more speed drivetrains Made from 304 Stainless Steel TECH SPECS Tooth Count 36 Ring Position Type Middle Ring Position Type Single Drivetrain Speeds Single Speed 3 32" Chainring BCD 104 Color Silver Defined Color Silver Material Stainless Steel