5 II----Shimano BB-UN300 BOTTOM BRACKET - STANDARD -SHIMANO quality/performance cartridge bearing square bottom bracket -Better chainline stability with chain line stabilizer -Series: Shimano Tourney TX800 Series -Fits JIS square-taper cranksets -Hollow spindle -w/o fixing bolts -Adapter material: Aluminum. 1009904(014-023)4/8 52323(10:5/25/23:ARI 71723(10:7/21/23:ARI---#82423(20:8/28/23:ari----1:rtn on 11/7/23 121523(20:12/18/23:ari----1:rtn on 2/14/24 31124(10:3/13/ARI----1:RTN ON 3/25/24 40824(10:4/10-----1:RTN ON 4/15/24---2:4/23/24:ARI----#41224(6:5/8/24:ari