Tim Landauer poses in front of the Texas Capitol, left. Son Robby rides between Taylor and Austin. Here at Posse headquarters, we’ve been feeling pretty good about ourselves and the nearly 700-mile Best of Texas Tour that we did — by car — over a long weekend. Then we got an email from Tim Landauer, a North Texas resident who, with his son, Robby, took a 6-day, 276-mile tour of the Central Texas barbecue heartland by bicycle last May. They ate at five of the same joints we did and arrived at the same conclusion: “Franklin’s is the best we…