Shimano BB-UN300 Bottom Bracket - English 73 x 123mm Spindle Square Taper JIS Mount | Rotor Size-140 Post | 180 Rotor 6 / ZS56/40 Tapered Headset

6 / ZS56/40 Tapered Headset Tapered Steerer Black

Ring Position/Type Chain Retaining Single RingTooth Count 48Drivetrain Speeds 9Drivetrain Speeds 10Drivetrain Speeds 11Drivetrain Speeds 12Round or Oval RoundMaterial AluminumColor BlackDefined Color BlackDirect Mount Type Direct Mount SRAM

Only compatible with e*thirteens direct mount Quick Connect interface

Fits 26` 700c and 29` bikes

5Lockout Switch Climb SwitchEyelet Diameter (mm) 15External Adjustments High Speed Compression DampingExternal Adjustments Low Speed Compression DampingExternal Adjustments Rebound DampingPositive Spring AirEye to eye length (mm) 210

Shimano BB-UN300 Bottom Bracket - English 73 x 123mm Spindle Square Taper JIS Mount | Rotor Size-140 Post | 180 Rotor 6 / ZS56/40 Tapered HeadsetShimano BB UN300 Bottom Bracket English 73 x 123mm Spindle Square Taper JIS. Shimano BB UN300 Square Spindle Bottom BracketsFits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle TECH SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73 Spindle Interface Type Square Taper JIS Spindle Length 123 Defined Color Black