Shimano Deore XT BB-MT801 Bottom Bracket - English (BSA) | 68/73mm
What Makes the Shimano Deore XT BB-MT801 the Right Bottom Bracket?
The BB-MT801 is a Hollowtech II external bearing bottom bracket designed for Shimano 24mm MTB crankset spindles across 68mm and 73mm English-threaded shells. The Hollowtech II interface places the bearings outside the shell, increasing bearing diameter and load distribution for a more rigid drivetrain connection than cartridge designs. Shimano upgraded sealing on the MT801 for trail use, with bearing protection that resists contamination and extends service intervals between maintenance.
Aluminum cups reduce weight over steel while maintaining adequate thread strength for reliable installation. Three included spacers accommodate the width difference between 68mm and 73mm shells, and compatibility spans Deore, SLX, XT, and XTR two-piece Hollowtech II cranksets. Installation requires a standard TL-BB13 splined cup tool, with the left cup reverse-threaded per English convention. If you are running any Shimano MTB external crankset, the BB-MT801 is the correct OEM-spec BB to match it.
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Shimano Deore XT BB-MT801 Bottom Bracket - English (BSA) | 68/73mm
Shimano Deore XT BB-MT801 Bottom Bracket - English (BSA) | 68/73mm
What Makes the Shimano Deore XT BB-MT801 the Right Bottom Bracket?
The BB-MT801 is a Hollowtech II external bearing bottom bracket designed for Shimano 24mm MTB crankset spindles across 68mm and 73mm English-threaded shells. The Hollowtech II interface places the bearings outside the shell, increasing bearing diameter and load distribution for a more rigid drivetrain connection than cartridge designs. Shimano upgraded sealing on the MT801 for trail use, with bearing protection that resists contamination and extends service intervals between maintenance.
Aluminum cups reduce weight over steel while maintaining adequate thread strength for reliable installation. Three included spacers accommodate the width difference between 68mm and 73mm shells, and compatibility spans Deore, SLX, XT, and XTR two-piece Hollowtech II cranksets. Installation requires a standard TL-BB13 splined cup tool, with the left cup reverse-threaded per English convention. If you are running any Shimano MTB external crankset, the BB-MT801 is the correct OEM-spec BB to match it.
Original: $39.99
-70%$39.99
$12.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
What Makes the Shimano Deore XT BB-MT801 the Right Bottom Bracket?
The BB-MT801 is a Hollowtech II external bearing bottom bracket designed for Shimano 24mm MTB crankset spindles across 68mm and 73mm English-threaded shells. The Hollowtech II interface places the bearings outside the shell, increasing bearing diameter and load distribution for a more rigid drivetrain connection than cartridge designs. Shimano upgraded sealing on the MT801 for trail use, with bearing protection that resists contamination and extends service intervals between maintenance.
Aluminum cups reduce weight over steel while maintaining adequate thread strength for reliable installation. Three included spacers accommodate the width difference between 68mm and 73mm shells, and compatibility spans Deore, SLX, XT, and XTR two-piece Hollowtech II cranksets. Installation requires a standard TL-BB13 splined cup tool, with the left cup reverse-threaded per English convention. If you are running any Shimano MTB external crankset, the BB-MT801 is the correct OEM-spec BB to match it.
