rockford fosgate tms57 5"x7" full range coaxial replacement speakers for 1998+ harley davidson models / 100 watts rms / 200 watts peak rockford fosgate the tms57 full range coaxial speaker is designed to replace existing 5"x7" speakers in factory equipped harley-davidson boom! audio stage-i and stage-ii bag lids. do you enjoy hitting the road on your motorcycle but are tired of not enjoying your music because you can't hear it when riding? the rockford fosgate tms series of motorcycle speakers solve that problem. the tms57 full range coaxial speaker is designed to replace existing 5"x7" speakers in factory equipped harley-davidson boom! audio stage-i and stage-ii bag lids. it features a neodymium motor structure driving a reinforced polypropylene cone with santoprene surround. highs are produced by an ultra-efficient 25mm dome tweeter with integrated phase plug and is made water/weather resistant with the addition of a santoprene front isolation spider connecting between the tweeter housing and cone assembly. harley and harley-davidson are registered trademarks of h-d u.s.a., llc. element ready design that is weather and water resistant carbon‐fiber re‐inforced polypropylene cone santoprene vast surround co‐molded cone and surround poly‐cotton spider santoprene front isolation spider high power 35mm voice‐coil ultra‐efficient neodymium dual magnet motor structure ultra‐high temperature glass re‐inforced polymer frame integrated spade terminals integrated 6db crossover with high power polyester capacitor ultra‐efficient 25mm proprietary film dome tweeter neodymium tweeter with integrated phase plug and asa grill low profile coaxial tweeter design discreet (hidden) tweeter wire factory h-d connector for plug-n-play operation 2 year warranty note: compatible with 2014-current boom! stage-1 saddlebag speaker systems & 2006-2013 boom! audio saddlebag speakr systems. not compatible with boom-2 bi-amped systems. call our tech support department for more information.