Shimano BB-ES300-E Octalink Bottom Bracket - universal/BSA 73x121

Shimano BB-ES300-E Octalink Bottom Bracket

Item number: 44004

Shimano BB-ES300-E bottom bracket - Octalink and E-type compatible


The Shimano BB-ES300-E Octalink bottom bracket is compatible with E-type front derailleurs. This is the difference between BB-ES300 and BB-ES300-AK. This bottom bracket is used for touring and MTB cranks installed on BSA frames with 68 or 73 mm bottom bracket shell.

Specifications:

Application:
All Mountain, Touring, City
Type:
BSA
Shell Width:
68 mm, 73 mm
Axle Length:
113 mm, 118 mm, 121 mm, 126 mm
Axle Type:
Octalink (MTB)
E-Type Compatibility:
yes
Chaincase Compatibility:
no

Technical Information:

Bearings:
steel
Axle Material:
steel
Bottom Bracket Cup Material:
composite (left), steel (right)

Compatibility:

  • Octalink crank arms with eight-speed splines for longer grooves (Octalink MTB)
  • E-type front derailleur

Recommended for:
  • FC-T521
  • FC-M523
  • FC-M522
  • FC-M4000
  • FC-M430-8
  • FC-M3000-8

Features:

  • hollow construction

Technology:

Octalink
In Shimano's Octalink system, the bottom bracket and crank are connected by an 8-tooth contact surface. This provides greater rigidity and greater load capacity, especially compared to conventional square systems.

Models:

BSA 68x113:
Threads:
BSA
Shell Width:
68 mm
Axle Length:
113 mm
Manufacturer Number:
E-BBES300EB13

BSA 68x117:
Threads:
BSA
Shell Width:
68 mm
Axle Length:
117 mm
Manufacturer Number:
E-BBES300EB18

BSA 68x121:
Threads:
BSA
Shell Width:
68 mm
Axle Length:
121 mm
Manufacturer Number:
E-BBES300EB21

BSA 68x126:
Threads:
BSA
Shell Width:
68 mm
Axle Length:
126 mm
Manufacturer Number:
E-BBES300EB26

BSA 73x121:
Threads:
BSA
Shell Width:
73 mm
Axle Length:
121 mm
Manufacturer Number:
E-BBES300EC21

BSA 73x126:
Threads:
BSA
Shell Width:
73 mm
Axle Length:
126 mm
Manufacturer Number:
E-BBES300EC26

Contents:

  • 1 x Shimano BB-ES300-E bottom bracket

Order Together:


  • 100 day return period
  • Online since 1998
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Models:

  • universal/BSA 68x113, in stock
    12.97€
  • universal/BSA 68x117, in stock
    12.97€
  • universal/BSA 68x121, out of stock
    12.11€
  • universal/BSA 68x126, in stock
    12.11€
  • universal/BSA 73x121, in stock
    11.24€
  • universal/BSA 73x126, in stock
    12.11€

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