Grimeca Brake Caliper Replacement Brake Pads. We stock 5 different size pads for your drag bike; 25mm, 30mm, 32mm, 41mm small body and the 41mm Large body. PMFR sold a bunch of the Grimeca Brake Calipers and we can help you out. The pads are sized smallest from bottom to top in the order listed above. Please call us to order of just put in the notes of the order exactly what you are needing.