I assume you mean Benotto, as opposed to Bennoto? There was a Benotto Triathlon model, circa 1986-1987. It was an upper, entry level model with a hi-tensile frame that featured seat and down tubes whose mid-sections had been flattened into a more aerodynamic profile. The hi-tensile frame almost certainly indicates Mexican manufacture. Pics and/or knowing the component mix would help to estimate the original price, but assuming it is this model, it was probably around $300 US.