In the present study four different binders are tested on Dynamic Shear Rheometer (DSR) to evaluate the effect of spindle diameter and plate gap on the rheological properties of asphalt binders. Frequency sweep tests are conducted on the binders from 10-70 °C by varying the spindle diameter and gap between the plates. It was found that the change in rheological properties with variation in spindle geometry and plate gap is more pronounced at higher temperatures and lower frequencies. These deviations in the properties with change in spindle attributes are found to be a function of stiffness of asphalt binder. It is also established from the study that the 25 mm diameter spindle geometry gives better and consistent results as compared to the 8 mm spindle geometry for the evaluation of the rheological properties of different asphalt binders. © 2016 Taylor & Francis Group, London.