Square Type Bottom Bracket

BB-UN300

ALTUS_M2000_m

BB-UN300

SHIMANO - Square Type Bottom Bracket - MTB - Standard Structure

Square Type Bottom Bracket

  • SHIMANO quality/performance cartridge bearing square bottom bracket
  • Better chainline stability with chain line stabilizer
  • 3 structures available
  • Standard, E-type, chain case options
  • Adapter material: Aluminum

PRODUCT SPECIFICATIONS

MODEL NO BB-UN300
SERIES ALTUS M2000 Series
Remarks * w/ Crank arm fixing bolts spec. only ** w/ Crank arm fixing bolts spec. is available
Structure_Standard
   
Axle length/shell width (mm)_107_68 (BC1.37)
Axle length/shell width (mm)_LL113_73 (BC1.37)
Axle length/shell width (mm)_D-H_68 (BC1.37) X *
Axle length/shell width (mm)_117.5_68 (BC1.37) X **
Axle length/shell width (mm)_XL118_68 (BC1.37) X **
Axle length/shell width (mm)_XL118_73 mm
Axle length/shell width (mm)_D-NL 122_68 (BC1.37) X **
Axle length/shell width (mm)_D-NL 122_73 (BC1.37) X *
Axle length/shell width (mm)_D-EL 127_68 (BC1.37) X *
Axle length/shell width (mm)_LL123_68 (BC1.37)
Axle length/shell width (mm)_LL123_73 (BC1.37)
Axle length/shell width (mm)_LL113_68 (BC1.37) X **
Axle length/shell width (mm)_MM110_68 (BC1.37) X **
Spindle_Square type

SERIES LINE-UP

  • Bottom Bracket Square Type Bottom Bracket
  • Bottom Bracket Square Type Bottom Bracket
  • Bottom Bracket Square Type Bottom Bracket
  • Bottom Bracket Square Type Bottom Bracket