Just got my Agility 50 new in september and didnt get to ride much last year (400km).Been stored in a garage all winter,I recently put in 5.5 gr roller weights and now Im dying to see if they have any effect on these hills here in PGH. I usually pull the hills at a hair pulling 15-20 mph and now Im hoping to get several speeding tickets for my effort. (really Im just hoping to get another 5 mph) COME ON SPRING!!