Rear Drive Belt - 139 Tooth - 1" Carbon fiber reinforced Goodyear engineered Falcon SPC* belts up to 33% more tensile strength than conventional aramid reinforced belts, High-temperature rubber compound excellent flex and long service life, Fabric reinforced belt tooth surfaces improve wear resistance, Durable material construction designed to withstand belt-penetrating debris without breaking, Made in the USA, No warranty claims are made or implied.