Wheels Manufacturing T47 Inboard Bottom Bracket - For 30mm Spindle ABEC-3 Bearings Fits Frames 68mm-132mm BB Shells BLK MFPN=CK23ERA136ARM165BLK model Albert Gravity Pro E50

model Albert Gravity Pro E50 size 29" width 2

sold individually and by the box

Weight:  15g

blue with a white top

model Era DM

Wheels Manufacturing T47 Inboard Bottom Bracket - For 30mm Spindle ABEC-3 Bearings Fits Frames 68mm-132mm BB Shells BLK MFPN=CK23ERA136ARM165BLK model Albert Gravity Pro E50Wheels Manufacturing T47 Inboard Bottom Bracket for 30mm Spindles with ABEC 3 Bearings. T47 Inboard threaded bottom brackets are made from machined aluminum and thread together directly into T47 frames. Cups have internal bearings for use in BB shell widths from 68mm to 132mm. Enduro Angular Contact bearings easily serviced or replaced Similar to standard BSA threaded cups; the drive side cup is left hand thread and the non drive side cup is right