Ya get what you pay for... there cheap ass carbs thats for sure, cheaply made as well.. pot metal housing, slides are generic, they use 2 screws to hold the bowls on, bowl design sucks (tendency to run them dry) the fuel inlets are tiny, the cables they send suck ( constantly syncing the carbs) spring tension is bad (to much) if i were to rate them id give them a 4 of 10 i highly recomend if your looking to upgrade carbs use a genuine keihin or a mikuni, these carbs dont last long but for the price its very VERY tempting it sold me, i have sense went back to factory carbs on that bike. Its imo one of those pay now or pay later deals, might as well throw a couple hundred extra at a proven carb.That is why these lay amongst the table-o-shit parts