Speeders rhymes with:
birdfeeder's, birdfeeders, breeders, breeders', cedars, feeders, leader's, leaders, leaders', meaders, meadors, reader's, readers, readers', reeders, reiders, reiders', rieders, rieders'
Speeders sounds like:
saboteurs, software's, spadework, spatters, spiders, spotters, sputters