Shimano BB-UN300 Square Type Bottom Bracket Brand_Vittoria The BUZZYBEE H2 sits high

The BUZZYBEE H2 sits high on the hitch

Outside diameter_160 mm ✔ Outside diameter_180 mm ✔ Outside diameter_203 mm ✔ Outside diameter (mm)_220 ✔ Pad lining shape compatibility_Narrow ✔

Rear Derailleur with 10-speed shifter

do reps and high-speed sprints at max power

Technical Specification

Shimano BB-UN300 Square Type Bottom Bracket Brand_Vittoria The BUZZYBEE H2 sits highSquare Type Bottom Bracket BB UN300 SHIMANO Square Type Bottom Bracket MTB Standard Structure Square Type Bottom Bracket FEATURES SHIMANO quality performance cartridge bearing square bottom bracket Better chainline stability with chain line stabilizer 3 structures available Standard, E type, chain case options Adapter material: Aluminum PRODUCT SPECIFICATIONS MODEL NO BB UN300 SERIES TOURNEY A070 Series Remarks * w Crank arm fixing bolts spec. only **