Shimano BB-UN300 Bottom Bracket - English | 68 x 110mm Spindle - Square Taper JIS Cleats Compatible with standard single-speed freehubs

Compatible with standard single-speed freehubs and freewheel hubs

where every watt counts and the line between winning and losing is measured in seconds

What Makes the PDW Shiny Object CO2 Inflator Worth It

delivering tightly spaced gear steps that let you hold optimal cadence across rolling terrain without large jumps between cogs

with the 1200mm length suited for longer routing runs -- typically front derailleur to battery connections

Shimano BB-UN300 Bottom Bracket - English | 68 x 110mm Spindle - Square Taper JIS Cleats Compatible with standard single-speed freehubsWhich Bikes Need the Shimano BB UN300 68x110mm Bottom Bracket? The Shimano BB UN300 in the 68mm English x 110mm spindle configuration is a cartridge bearing square taper bottom bracket built for bikes where a shorter spindle produces the correct chainline primarily road and hybrid frames with double chainring setups where the shorter 110mm spindle positions the chainrings correctly relative to the dropout centerline. The integrated chain line