I only get 50 miles out of my 2007 WR450 with the stock tank, I have searched and found that clarke is the only brand that uses stock rad shrouds but they also seem like a huge tank. Acerbis tanks have built in rad shrouds whichi is no good as there are lots of roacks here so i think they would punctures the tank when i crash. I "only" want a 100 mile range. What tank would you recomend? Thanks.