Llewellyn Down Tube STI Gear Adjuster Boss 31.8mm

SKU: 201328-3430

Sale price$9.75
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Llewellyn STI Gear Lever adjuster boss for 31.8mm Downtube in Stainless Steel

 Does not include the adjuster barrels or springs.

This is a beautiful investment cast STI/ERGO gear lever boss that has many useful features. Here is Darrell Mc McCulloch's (the designer) notes about this part:

Today it is not very often one needs to use the down tube gear lever braze-on since STI and Ergo gear/brake levers have been the norm since 1992.

 However, for some component groups and some frame designs, we needed a simple gear cable adjuster boss for the down tube. There was nothing that was functional or elegant available. 

  • The new boss needed to use standard M5 gear cable adjusters.                                
  • It needed a counter bore for the adjuster spring to sit in so when the spring is turned it does not chew paint off, thus keeping all neat and tidy. 
  • It needed to be easy to use in the frame construction process and have a good amount of shoreline to reduce possible stress risers on thin tubes.


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