For big bottom end power on your 2023-2024 TBI bike, a simple change of the inside reeds and upgrade to our TBI reed strips is all it takes. A lower tension reed on the inside reeds, along with the stiffer, stock outside reeds and updated reed strips, provide a HUGE gain in bottom and midrange power on the 125 and 150 TBI bikes. A good gain on the 250's bottom and mid, and a nice gain on the 300 TBI's. For only $49.95 for the reeds and $19.95 for the strips. These are a "competition" reed, so they wear quicker. They need to be replaced every 30-50 hours, depending on bike size and riding style. Just like a competition based endurocross gummy tire. This setup is designed for competition.