Shimano Threaded Bottom Bracket Unit (BB-UN55)
BB-UN55 is a Sealed Cartridge Bottom Bracket with Square Tapered Spindle in a 68mm Shell Width.
New version of UN53/UN54 Bottom Bracket Units.
■ A good quality Bottom bracket for traditional chainsets
■ Designed for use with Shimano E-type BB mounted front derailleur system
■ Super-accurate bearings for smooth operation and improved durability
■ Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
■ Lightweight hollow spindle
■ Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
■ Fast and easy installation without adjustment
■ Fixing Bolt Included.
■ Standard British 24 TPI Thread
■ Shell Width: 68mm
■ Axel Length Available: 107mm, 110mm, 113mm, 115mm, 118mm, 122.5mm and 127mm
Pease Note: Shimano update their product codes on a yearly basis, therefore the BB-UN53 AND BB-UN54 are the same model but slightly older versions, we have some slightly older stock in some bottom bracket sizes, therefore the Product ID may differ slightly from BB-UN55.
|Bottom Bracket Type||Square Tapered - Threaded|