Shimano BB-UN300 68x118mm Square Type MTB Bottom Bracket

Shimano Nexis Inter-3 Series Standard Structure Square Type MTB Bottom Bracket.. Shimano Series: Nexis Inter-3
. Size: 68 x 118mm
. Square Type Bottom Bracket
. Quality/performance cartridge bearing square bottom bracket
. Better chainline stability with chain line stabilizer
. Standard, E-type, chain case options
. Adapter material: Aluminium
. Standard Structure
. Use: MTB