Shimano XTR Bottom Bracket - BB93B

Genuine Shimano HollowTech II bottom bracket assembly. This set includes left and right hand cups,...

Best current price£34.46from eBay

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eBayShimano XTR M980 Bottom Bracket HollowTech II Set 68/73mm Threaded Bike BB93
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TredzShimano Black Bb-M980 Xtr Bottom Bracket - English Thread Cups
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Leisure Lakes BikesShimano BB-M980 XTR 68/73mm Bottom Bracket
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Product Information

Full details

This guide is for cyclists looking to understand and maintain their Shimano XTR Bottom Bracket (BB93B). It offers a lightweight and durable bottom bracket assembly, designed for optimal performance. Note that proper installation requires specific tools, as outlined in this guide.

All features

Model Part NumberBB93B
BrandSHIMANO

Extended Product Information

FAQs

What tools are required for installation?

You will need TLFC34 or TLFC24 in conjunction with TLFC36 adaptor tool for installation and removal.

Is this bottom bracket compatible with all Shimano cranks?

This bottom bracket is designed for Shimano HollowTech II cranksets. Check your crankset specifications for compatibility.

How often should I service this bottom bracket?

This bottom bracket is designed to be maintenance-free. However, inspect it periodically for any signs of wear or damage.

What kind of conditions is this bottom bracket suitable for?

This bottom bracket is suitable for a wide range of conditions, including cross-country and trail riding. The sealed design helps to protect the bearings from dirt and water.

Can I use a regular wrench to install the bottom bracket?

No, you must use the appropriate Shimano bottom bracket tools (TLFC34 or TLFC24 in conjunction with TLFC36 adaptor tool) for correct installation.

What should I do if the bottom bracket feels rough?

If the bottom bracket feels rough, it likely needs to be replaced. Check for any damage or wear and replace if necessary.

Troubleshooting

Creaking noise from the bottom bracket.

Check the bottom bracket for play. Tighten the bottom bracket cups to the recommended torque specifications using the correct tool. If the noise persists, the bottom bracket may need to be replaced.

Rough pedaling feel.

Inspect the bottom bracket for any signs of damage or wear. If the bearings are contaminated or worn, the bottom bracket will need to be replaced.

Pros and Cons

Pros

  • Lightweight design for improved pedaling efficiency.
  • Sealed design protects against the elements.
  • Durable and long-lasting construction.
  • Easy installation with the correct tools.

Cons

  • Requires specific tools (TLFC34 or TLFC24 in conjunction with TLFC36 adapter tool) for installation and removal.
  • May require professional installation for those unfamiliar with bottom bracket servicing.

Setup, Compatibility & Care

  1. Compatibility: This bottom bracket is compatible with 68 mm and 73 mm bottom bracket shells.
  2. Installation: Use TLFC34 or TLFC24 in conjunction with TLFC36 adaptor tool for installation and removal.
  3. Care: The bottom bracket is designed to be maintenance-free. Clean the exterior of the bottom bracket with a damp cloth as needed. Avoid using high-pressure water near the seals.

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