SHIMANO BB-MT801 Deore Xt Bike Bottom Bracket 192790605913 68/73MM

( Brand: Shimano ), ( Manufacturer Part Number: BB-MT801 ), ( Model: SHIMANO DEORE XT BB-MT801 ), ( Compatible Brand: For Mtb ), ( Shell Width: 68/73 Mm ), ( Color: Black ), ( Bottom Bracket Shell Type: Bsa ), ( Material: Aluminum ), ( Set Includes: Bottom Bracket ), ( Type: English ), ( Spindle Type: Hollowtech Ii ), ( Compatible Bike Type: Mountain Bike ), ( Country Of Origin: Japan ), ( UPC: 192790605913 )

Review SHIMANO Deore Xt Bike Threaded Bottom Bracket 68/73mm Shell Width

The **Shimano BB-MT801 Deore XT Bottom Bracket** is a high-performance, durable, and precision-engineered component designed to deliver exceptional reliability and smooth operation for mountain bikers who demand the best in their riding experience. Part of Shimano s renowned Deore XT line, this bottom bracket is built to withstand the rigors of aggressive off-road terrain, from rough singletrack to demanding downhill descents, while maintaining optimal power transfer and minimal friction. Crafted from a robust **68/73mm press-fit (PF86) standard**, this bottom bracket is engineered to fit a wide range of modern mountain bike frames, ensuring a secure and snug installation without the need for additional spacers or conversion kits. The **PF86 standard** not only simplifies installation but also enhances frame stiffness and strength, reducing unwanted flex that could compromise pedaling efficiency or handling precision.

At the heart of the BB-MT801 is Shimano s **high-quality steel construction**, featuring a **cage design** that houses two sealed ball bearings for smooth, low-friction rotation. The bearings are precision-machined and treated to resist wear, ensuring longevity even under heavy loads and repeated impacts. The **cage itself is machined from a single piece of steel**, providing structural integrity and reducing the risk of misalignment or wobble a common issue with lower-quality bottom brackets. This design also minimizes the potential for dirt and debris to accumulate, further extending the lifespan of the component and reducing maintenance requirements. The **sealed cartridge bearings** are protected by a durable rubber boot, which effectively shields them from mud, gravel, and other contaminants that could compromise performance or lead to premature failure.

For riders who prioritize performance and durability, the BB-MT801 excels in both **power transfer and resistance to fatigue**. The **steel construction** is optimized for strength without excessive weight, striking a balance that benefits both climbers and descending riders. The **premium bearings** ensure that pedaling feels effortless, even under heavy loads, while the **tight tolerances** of the press-fit design eliminate any play or rattle, contributing to a more confident and responsive ride. Whether tackling steep climbs or carving through technical descents, this bottom bracket delivers consistent performance, making it an ideal choice for serious mountain bikers who refuse to compromise on quality.

Installation of the Shimano BB-MT801 is straightforward, thanks to its **PF86 compatibility**, which aligns with Shimano s broader ecosystem of components like the Deore XT crankset. The **press-fit design** eliminates the need for traditional spindle-based bottom brackets, reducing the number of moving parts and potential failure points. When properly installed, this bottom bracket integrates seamlessly with the frame, enhancing overall bike rigidity and handling. Shimano s attention to detail extends to the **threading and alignment**, ensuring that the crankset mounts securely and true, which is critical for optimal chainline and pedaling efficiency. For maintenance, the sealed bearings require minimal upkeep just occasional cleaning to remove accumulated dirt and a check for proper installation but the overall build quality means this bottom bracket is built to last for thousands of miles with proper care.

In summary, the **Shimano BB-MT801 Deore XT Bottom Bracket** is a standout component for mountain bikers who seek a blend of **durability, performance, and ease of use**. Its **PF86 press-fit design**, high-quality steel construction, and sealed bearings make it a reliable choice for demanding riders, while its compatibility with Shimano s broader product line ensures seamless integration into existing setups. Whether building a new bike or upgrading an existing one, this bottom bracket delivers the strength, smoothness, and longevity expected from Shimano s Deore XT series, making it a worthy investment for those who demand nothing less than excellence in their riding gear.

### **Shimano BB-MT801 (Deore XT) Bottom Bracket (68/73mm) Pros and Cons**

The Shimano BB-MT801 is a well-regarded entry-level to mid-range bottom bracket designed for mountain bikes, particularly those using 68/73mm spindle compatibility. Here are its key advantages:

1. **Durability and Reliability** Shimano s Deore XT components are built to withstand rough terrain and heavy use, making this bottom bracket a solid choice for aggressive riding. The sealed cartridge design reduces maintenance needs compared to cup-and-cone setups.

2. **Compatibility** The 68/73mm spindle length is common in many modern mountain bikes, especially those with wider axles (like 12x148mm or 12x150mm forks). This makes it a versatile option for upgrading or replacing an existing bottom bracket.

3. **Smooth Performance** Shimano s engineering ensures smooth crankarm rotation, reducing friction and improving efficiency. The sealed bearings are less prone to dirt and debris compared to open designs.

4. **Affordability** Compared to higher-end Shimano or third-party brands, the BB-MT801 offers good value for its performance. It s a cost-effective way to upgrade a bike without sacrificing quality.

5. **Easy Installation** Shimano s bottom brackets are designed for straightforward installation, often requiring only a torque wrench and basic tools. The press-fit version (if applicable) simplifies the process further.

6. **Widely Available** As a Shimano part, it is easy to find in bike shops, online retailers, and through aftermarket suppliers. Replacement bearings or seals are also readily accessible.

7. **Lightweight** While not ultra-lightweight, it is still relatively compact and doesn t add significant weight to the bike, which is beneficial for climbing and endurance rides.

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1. **Limited Longevity Compared to Higher-End Models** The Deore XT series is not as durable as Shimano s top-tier components (e.g., SLX or XTR). In extreme conditions (e.g., heavy downhill racing or frequent deep mud), it may wear out faster than premium alternatives.

2. **No Adjustable Tension** Like most cartridge bottom brackets, it does not allow for bearing preload adjustment. Over time, this can lead to slight play or increased friction if the bearings wear unevenly.

3. **Spindle Length Limitations** While 68/73mm is common, it may not fit all bikes, especially older models or those with non-standard axle lengths. Always verify compatibility before purchasing.

4. **Not Ideal for Extreme Conditions** In harsh environments (e.g., deep sand, saltwater, or extreme mud), the sealed design may not fully protect against debris, potentially leading to premature failure.

5. **Less Customization** Unlike cup-and-cone setups, you cannot adjust the bearing type or quality. If you prefer high-end bearings (e.g., ceramic or hybrid), this is not an option.

6. **Potential for Vibration Transfer** Some riders report that lower-end Shimano bottom brackets can transfer more vibration to the frame, though this is subjective and depends on the bike s overall build quality.

7. **Resale Value** As a mid-range component, it may not hold its value as well as higher-end Shimano or third-party brands like Cane Creek or DUB.

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### **Conclusion and Recommendation**

The **Shimano BB-MT801 (Deore XT) 68/73mm bottom bracket** is an excellent choice for riders looking for a **reliable, affordable, and easy-to-install** upgrade for their mountain bike. It strikes a balance between performance and cost, making it suitable for:

- **Cross-country and trail riders** who prioritize smooth pedaling and durability.

- **Budget-conscious upgraders** who want to improve their bike s performance without spending on premium components.

- **Bikes with 68/73mm spindle compatibility**, especially those needing a straightforward replacement.

However, if you ride in **extreme conditions** (e.g., heavy downhill, deep mud, or saltwater environments), consider upgrading to a **higher-end Shimano model (e.g., BB-MT900 SLX or BB-MT910 XTR)** or a **third-party option (e.g., Cane Creek, DUB, or Sunrace)** for better longevity and performance.

For most **trail and XC riders**, the **BB-MT801 is a strong recommendation** it offers a **good mix of durability, smoothness, and affordability** without requiring excessive maintenance. If your bike s bottom bracket is worn or you re looking to refresh an older build, this is a **safe and practical choice**.

Details:

Last two images in this listing are stock photos. Condition is used, with some evidence of mounting to a bike but otherwise shows minimal no wear the bearings. Brand SHIMANO, Color Black, Material Butane Strine ABS, Item Weight 120 Grams, Flat. I bought this as an open-box return from, but never installed or used it.

Up for sale is this Shimano BB-MT801 MTB Hollowtech II // BSA 68/73 Deore XT Bottom Bracket.

part #: bbmt801 prices

• $35.54-$37.88

specifications ribicycl:

• brand: Shimano
• mpn: Bb-mt801
• model: Shimano Deore Xt Bb-mt801
• compatible brand: For Mtb
• shell width: 68/73 Mm
• color: Black
• bottom bracket shell type: Bsa
• material: Aluminum
• set includes: Bottom Bracket
• type: English
• spindle type: Hollowtech Ii
• compatible bike type: Mountain Bike
• country of origin: Japan
• upc: 192790605913

general ribicycl:

• condition: Used
• Cycling > Bicycle Components Parts > Bottom Brackets

shipping ribicycl:

• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• transit: 4-8 Days
• cost: $8.46
• type: Calculated

returns ribicycl:

• policy: No Returns

seller ribicycl:

• city: Marietta, Georgia
• # reviews: 1492
• rating: 100.0%

offer ribicycl:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 6, 2026
• sold: 0

payments ribicycl:

• wallet: Paypal
• other
• credit card: Mastercard

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