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KB 98-present Harley Subwoofer Adapter




These are a CNC molded 10” wheel side mount adapter with a  10.7” OD, 9” ID 5*, and a ½” mounting surface tilt to follow the flow more of the outside of the saddle bag, to allow a deeper speaker to be mounted with enough room for proper ventilation. Max mounting depth will vary by bag manufacture. These were made to handle big excursion from subwoofers, it however does effect the max mounting depth on the subwoofer you can run, there work great for bags that have been widened or shallower subwoofers with an exclusion that may cause it to hit the shock. They also will work with the current toppers all you have to do is trim them back as they were designed off the same CAD as the regular subwoofer/midbass rings I carry.

Fitment will also vary by bag manufacture.  Using a Quality bag or stock bag will achieve the best results. The inside diameter may have to be opened slightly as there are different speaker manufactures on the market. All new designs beginning 12/1/21 and material come with Speaker and ring mounting hardware. Threaded Inserts for speakers ( 8 ) 10-24 Stainless steel hardware, 16 stainless steel outer ring hardware. Drill bit and tool to put in inserts are optional and can be found in the hardware section Panel bond not included. 

It is recommended but not necessary to use a 2 part epoxy to bond the adapter to the saddle bag. A good example would be 3M 08115. You should also have some knowledge of body work as you will be cutting the saddle bag.

**due to many variations of saddle bags these were CNC using stock bags. Depending on the bag slight modifications may have to be done to the adapter. I.E sanding to the mounting face of the adapter or use of silicon caulk to fill in small gaps. Using a quality aftermarket or stock bag will achieve the easiest and best results.

Custom Made Parts, all sales are Final

Sold in pairs



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