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SKU: CR3495

Shimano BB-UN300-K Square Taper JIS 68x122.5mm Hollow Spindle Bottom Bracket for English Thread Bike Cranksets, Suitable for Chain Cases, High-Quality Steel Components, Durable Engineering, Ideal for Road and Mountain Bikes

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Description
Specifications

Upgrade your bicycle's drivetrain with the Shimano BB-UN300-K Square Taper JIS Bottom Bracket, a reliable and durable component designed for seamless performance and easy installation. Crafted specifically for chain case compatibility, this bottom bracket features a precision-engineered hollow spindle that enhances weight savings without compromising strength, making it ideal for both commuter bikes and touring setups.

Constructed with high-quality materials, the Shimano BB-UN300-K ensures enhanced durability against corrosion and wear, thanks to its robust design and corrosion-resistant finish. The JIS (Japanese Industrial Standard) square-taper interface provides a secure, frictionless fit with compatible cranksets, delivering smooth power transfer and efficient pedaling performance. The 68mm shell width and 122.5mm spindle length are optimized for standard English bottom bracket frames, ensuring a perfect fit for a wide range of bicycle models.

This bottom bracket is ideal for cyclists seeking dependable performance in urban commuting, touring, or everyday riding. Its sleek black finish not only offers a timeless aesthetic but also complements a variety of bike styles. Easy to install, the Shimano BB-UN300-K is compatible with chain case systems, making it perfect for integrated drivetrain solutions.

Key Features & Benefits:

- Durable construction with a hollow spindle for lightweight strength

- Compatible with JIS square-taper cranksets for secure attachment

- Designed for 68mm shell width and 122.5mm spindle length for versatile fitting

- Corrosion-resistant materials ensure longevity in all weather conditions

- Ideal for chain case bikes, commuters, and touring bicycles

- Sleek black finish adds a professional look and style to your bike

Optimize your bicycle's performance with the Shimano BB-UN300-K Square Taper Bottom Bracket - a perfect combination of engineering, style, and reliability for everyday riders and touring enthusiasts alike. Choose Shimano for quality, precision, and lasting performance on every ride.

  • High-quality, SEO-friendly product bullets for the Shimano BB-UN300-K Square Taper JIS Bottom Bracket:
  • Durable construction with a hollow spindle design enhances weight savings and rigidity, ensuring optimal power transfer and durability during intense cycling sessions.
  • Specially engineered for chain case applications, this bottom bracket offers a seamless fit with JIS square-taper cranksets, providing reliable performance across various city and commuter bikes.
  • Precision-machined components and strict manufacturing standards deliver smooth rotation and minimal friction, reducing wear and extending the lifespan of your drivetrain.
  • Designed with an English 68x122.5mm shell interface, this bottom bracket is compatible with a wide range of bicycles, offering versatile use for both recreational and daily commuting bikes.
  • Built for reliability and easy installation, the Shimano BB-UN300-K features a sleek black finish and includes all necessary components, making it an ideal upgrade for maintaining or enhancing your bicycle's pedaling efficiency.
Bottom Bracket Shell I.D.1.37
BB/Frame InterfaceEnglish
BB Shell Width (mm)68
Spindle Interface TypeSquare Taper JIS
Spindle Length122.5
Defined ColorBlack
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