Square Type Bottom Bracket

BB-UN300 NEW

ACERA_M3000_m

BB-UN300 NEW

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 SHIMANO ACERA M3000 Series
Remarks * w/ Crank arm fixing bolts spec. only. ** w/ Crank arm fixing bolts spec. is available
Structure_Standard
   
Axle length / shell width_107_68mm_(BC1.37)
Axle length / shell width_LL113_73mm_(BC1.37)
Axle length / shell width_XL118_73mm_(BC1.37)
Axle length / shell width_D-NL (122.5mm)_68mm_(BC1.37) X **
Axle length / shell width_D-EL (127.5mm)_68mm_(BC1.37) X *
Axle length / shell width_LL123_68mm_(BC1.37)
Axle length / shell width_LL123_73mm_(BC1.37)
Axle length / shell width_LL113_68mm_(BC1.37) X **
Axle length / shell width_MM110_68mm_(BC1.37) X **
Spindle_Square type

SERIES LINE-UP

  • Bottom Bracket Square Type Bottom Bracket
  • Pedal SPD Trail Pedal
  • Front Derailleur SHIMANO ALIVIO SIDE SWING Front Derailleur (E-type Mount) 2x9-speed
  • Front Derailleur SHIMANO ALIVIO SIDE SWING Front Derailleur (Direct Mount) 2x9-speed