sentences:  However, in recent years there have been cross-over bar types that do not fall into one category or the other, and which can conceivably use either type of shifter, brake lever or grip (an example is the upright style bar).For this reason, certain handlebars are now available in multiple sizes related to the shifter or brake lever clamp diameter.Standard road drop handlebars (including track, cyclocross and touring bars) use a grip/lever diameter, which is matched only to road bike type shifters or brake levers.