This is an optional Exotek Brass C Block Weight, weighing 24 grams. This stealthy black coated brass C block hanger is for use with the B6.1 & B6.1D.
The block weighs 25g and helps increase rear traction by adding weight at a low point under the gearbox.
Laser etched for easy identification and machined a 2nd time for perfect fitting inserts.
This product was added to our catalog on August 29, 2018
Same as previous reviewer. Had an issue with spur rubbing the side of the C mount. This mount is much wider than the Associated brass C mount. Shaving the side is required.
What I don't understand is how this was not picked up by Exotek in their R&D??????