SHIMANO
Bottom Bracket Shimano BB-UN300 Square Taper 73mm BSA
Axle length:
Bottom Bracket Shimano BB-UN300 Square Taper 73mm BSA
The Shimano BB-UN300 is a reliable and widely used bottom bracket designed for cranks with JIS Square Taper mounting. It offers a classic and durable solution suitable for MTB, city and hybrid bikes.
This bottom bracket is intended for frames with a BSA threaded bottom bracket shell and a width of 73 mm. Shimano’s proven manufacturing quality ensures smooth rotation, efficient power transfer and long service life.
The sealed bearing construction protects internal components from dirt and moisture, reducing maintenance requirements and increasing durability. The BB-UN300 is an excellent choice for riders who value reliability and simplicity.
- Model: BB-UN300
- Type: Square Taper (JIS)
- Thread: BSA
- BB shell width: 73 mm
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Estonia
2,45 € -
Finland
7,90 € -
Latvia
4,50 € -
Lithuania
5,40 €
Shimano is a Japanese component manufacturer that since 1921 has been one of the world’s largest suppliers of bicycle drivetrains, brakes and cycling-specific parts. Shimano groupsets — from Tourney for city bikes to top-tier Dura-Ace — are found on virtually every serious bike brand. The company also makes fishing tackle and rowing components.