· BB BS 1.37x24tpi

· 68mm body

· JIS axle

· steel body

· steel cups

· steel spindle

· sealed bearing BB

· C-type for chainguard

BB SUN REP BAJA SQ

· 100/162 BC

· replacement BB

· BS 120*167

· Fits all Shimano road and mountain external bearing cranksets  

· Shell 68/73mm

· Interface ENG 1.37"x24t L/R

· left cup only

·  crmo cotterless spindle, nylon body, 2pcs water-proof steel cups 

· ball retainer: 1/4"x9

· thread: it m36x34t r/r

· Sealed bearings

· PVC cups

· black steel spindle