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The Patented Bushnell Retro eccentric:

Same advanced design, easy to use, and economical.

Suggested Retail
$119.99 (Silver)
$129.99 (Black)

General Part Specifications:

  • Weight - 224 grams
  • Construction materials - aluminum and stainless steel
  • Diameter of part - 2.118 inches (53.78mm)
  • Fits BB shells from 53.8 ~ 54mm I.D. without shim
  • Fits BB shells up to 57mm with available shim
  • Designed for standard English threaded bottom brackets (1.37 X 24 tpi)
  • Width is 66mm (will fit bb shells up to 73mm width)
  • Manufactured in the U.S.A.
  • Fits just about any bike that uses an ebb*
  • Download installation instructions (PDF 1/2 megabytes)

The Patented Bushnell Featherweight eccentric:

Advanced design, high-performance, extremely light weight and easy to use.

$174.99 (Silver)
$184.99 (Black)

General Part Specifications:

  • Weight - 140 grams
  • Construction materials - aluminum and stainless steel
  • Diameter of part - 2.118 inches (53.78mm)
  • Fits BB shells from 53.8 ~ 54mm I.D. without shim
  • Fits BB shells up to 57mm with available shim
  • Designed for standard English threaded bottom brackets (1.37 X 24 tpi)
  • Width is 66mm (will fit bb shells up to 73mm width)
  • Manufactured in the U.S.A.
  • Fits just about any bike that uses an ebb*
  • Download installation instructions (PDF 1/2 megabytes)

The Bushnell Fat Bike Eccentric:

The same design and performance as our standard ebb, but designed for the 100mm shells in most Fat Bikes that require an ebb. Feel free to contact us with any questions!

Retail $144.99 (Silver only)

General Part Specifications:
  • Weight - 310 grams
  • Construction materials - aluminum and stainless steel
  • Diameter of part - 2.118 inches (53.78mm)
  • Fits BB shells from 53.8 ~ 54mm I.D. without shim
  • Fits BB shells up to 100 mm width
  • Designed for standard English threaded bottom brackets (1.37 X 24 tpi)
  • Manufactured in the U.S.A.
  • Download installation instructions (PDF 1/2 megabytes)

The Bushnell Fat Bike Light Eccentric:

The same design and performance as our standard ebb, but designed for the 100mm shells in most Fat Bikes that require an ebb. This version, like the Featherweight, has all of the excess material removed to lighten it up. Feel free to contact us with any questions!

Retail $199.99 (Silver only)

General Part Specifications:
  • Weight - Just 203 grams!
  • Construction materials - aluminum and stainless steel
  • Diameter of part - 2.118 inches (53.78mm)
  • Fits BB shells from 53.8 ~ 54mm I.D. without shim
  • Fits BB shells up to 100 mm width
  • Designed for standard English threaded bottom brackets (1.37 X 24 tpi)
  • Manufactured in the U.S.A.
  • Download installation instructions (PDF 1/2 megabytes)

Frequently asked questions:

Bushnell Eccentric Bottom Brackets are part of R+E Cycles in Seattle