Cycling bottom bracket cups built for reliable bearing performance and straightforward fitting, SHIMANO BB-MT801 Bottom Bracket Cups. Riders benefit from quiet, low-maintenance pedalling that suits daily commutes and longer club rides. Are these the right upgrade for frames with 68/73 mm English-thread shells?
⚡ At a Glance
- • Bearing Performance: Smooth, quiet operation thanks to high-quality sealed bearings
- • Best for: Commuters, weekend riders and mechanics wanting reliable, low-maintenance parts
- • Not ideal for: Frames requiring press-fit bottom brackets or non-English threading
English-thread cups for 68/73 mm shells with sealed bearings and straightforward installation. Designed to reduce noise and keep rotation smooth across many rides.
Quiet, consistent pedalling – Thanks to sealed bearings
Sealed bearings use protective seals to limit grit and water ingress, maintaining low friction and steady rotation over time. The sealing helps preserve bearing surfaces and reduces contamination-related wear.
Reduced drivetrain noise and smoother pedal strokes, especially noticeable on longer rides or in wet conditions.
Straightforward fitting – With English-thread 68/73 mm cups
Threaded cups match standard British/English bottom bracket shells in 68 or 73 mm widths, using established threading interfaces for secure engagement. Correct thread match simplifies alignment and helps ensure predictable torque during installation.
Quick, reliable installation into compatible frames that lowers fitting time and minimises common alignment hassles.
Lower maintenance over time – Thanks to high-quality construction
Manufacturing quality and sealed bearings combine to limit ingress and internal wear, extending service intervals. Clean fits and robust finishing reduce the risk of creaks caused by poor mating surfaces.
Less frequent bearing servicing and fewer unexpected workshop visits, making these cups practical for regular riders and tourers.
✨ The 4 Key Reasons for SHIMANO BB-MT801 Bottom Bracket Cups
- Compatibility with English thread – Ensures secure fit for 68/73 mm threaded shells without modification
- High-quality sealed bearings – Maintain smooth rotation and reduce contamination from road grime
- Easy installation – Threaded cups simplify fitting and quick replacements in a workshop
- Positive user feedback – Reports of smooth, quiet bearings and good Shimano build quality
📋 Technical Details at a Glance
- Category: Sports / Cycling component
- Brand: SHIMANO
- Model: BB-MT801
- Product ID: B0BGWTXJT3
- Threading: English (BSA) threads
❓ Frequently Asked Questions
Q: Are these cups compatible with my 68/73 mm bottom bracket shell?
A: Yes. The cups are specified for English-thread shells in 68 mm or 73 mm widths.
Q: Do the bearings require frequent servicing?
A: Sealed bearings help limit ingress and reduce the need for frequent servicing compared with open bearings.
Q: Is installation straightforward for a home mechanic?
A: Yes. The English-thread cups are designed for standard threaded fitting and are described as easy to install.
🏆 Our Verdict
The SHIMANO BB-MT801 Bottom Bracket Cups suit commuters, club riders and mechanics who need reliable, low-maintenance bearing performance. Sealed bearings and English-thread compatibility deliver quiet rotation and straightforward fitting as the main advantages. Expect durable operation and lower upkeep, delivering solid long-term value for regularly ridden bikes.
