Yamaguchi Time Trial Bars

  • Currently: We are not taking stem or bar orders.

Stem and bar are still order with frame order customer.

Boomerang Bars

$800 + S&H

Time Trial Bicycle Handlebars

Yamaguchi Boomerang Bars are constructed of aero-profiled thin-walled steel tubing. The bar is unique in that you do not use a stem in conjunction with the Boomerang Bar. This makes the bar very stiff, very light, and very aerodynamic. The aero extensions protrude forward from the steerer clamp and are customizable in length and width.


  • Custom Reach/length (ex: 110, 120 mm, 130 mm, etc)
  • Custom Width (ex: 40, 41, 42, 43, 44 cm, etc)
  • Available for 1" or 1 1/8" steerers
  • Bar clamps directly to the steerer tube. No stem required

Other special design prototype bars can be custom made for competition use. Please contact us for more info.

For Clip-on Aero Bar users: Please contact us to provide info for the clip-on attachment of your choice (ex: Scott, Cinelli, Deda, Profile, etc) so the bar can be custom built to fit your preferred clip-on attachment. Scott Inc. owns the patent for the Clip-on attachment. Custom aero bar extensions and armrest mounting pad options are also available.

Additional charges may apply. Please contact us for more info.

Yamaguchi Bicycles, Inc.

  • P.O. Box 25 Rifle, CO 81650.

Email: mailto:yamaguchibike@gmail.com