Fully sealed mechanism helps to prevent contaminates from entering the headset for a longer service life | Tange-Seiki original sized 4T5 Upper and Lower cartridge bearings | For use with 30.2mm straight head tube and 1" straight threaded steer tube type fork | 24mm Upper stack / 11.3mm Lower stack / 35.3mm total stack | #1501 Upper and Lower bearings
UPC: 4580087252142