Compression Release Knob - Top Yoke Mount Compression Release Knob for Yamaha SR $55.00 Quantity: at $55.00 each Add To Basket Here is a nice and clean way to house your compression release. The knob fits in the handlebar hole of the original top yoke. To be used with clip-ons. The original compression release cable can be used with this system. An additional cap for the second hole is provided. Mounting screws are not provided.