B5 Aluminum Rear Hex Adapter (2) (Gun Metal) by ST Racing Concepts

ST Racing Concepts
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This is an optional ST Racing CNC Machined Aluminum Associated B5/B5M Rear Hex Adapter Set. These adapters are precision machined and feature a simple, yet effective "set screw over drive pin" locking design that reduces the risk of losing/stripping the screw that can be common with clamp lock designs.


  • Weighs 4 grams (combined weight)
  • Available in blue, gun metal and silver
  • Compatible with B5 and B5M

NOTE: These are not compatible with HD axles.

This product was added to our catalog on June 23, 2014.

l watters
Verified Owner
Sunday, Nov 20 2016 (5 months ago)
ST Racing Concepts B5 Aluminum Rear Hex Adapter (2) (Gun Metal)
warning these do not fit the protek titanium B5/B6 axles or do they fit the stock B6 steel axles. the holes in the hex adapters are too small. i ordered one set on one order, and another on a order recently. i went to finally install them....no go.

after reading review on blue anodized version, same problem in 2015)