So let’s consider this combination of bikes, shall we? The Street Twin, with its 900cc engine’s dynamic torque curve, is a spunky contemporary classic that’s light on its feet, with a small profile. Excellent for the beginner and intermediate riders alike who are simply smaller of stature (or, as I like to say, vertically challenged). Its bigger brother, the T120, with more horsepower and torque, is more refined in its power delivery, and is a larger bike overall. Good for the bigger, more experienced rider who enjoys longer rides (and walks in the rain.) Now the T100 is aimed squarely at the new rider. Triumph calls it the entry level Bonneville, and we can see why: take the smaller Street Twin’s engine and bolt it into the larger, heavier T120 chassis. Give it the same classic styling of the T120 and voila! You’ve got the T100.