I have type 1 and I also had Quadruple bypass in Dec. Last year I 3100 miles, so far I have put on 1850 miles. I too have a pump. I have joined tudiabetes.com They have a good cycling group there. I have learned a lot from the group. I also have changed my diet. I believed it has been helpful. It is a total vegan. My cholesterol total number was 100. My HDL was 51. Here is the diet. http://engine2diet.com/