I use the `` boss '' 6 time and the belt break . I be amaze that when I go to replace it I find that it be paper thin . -lrb- I have to go to 4 store before I find a replacement at Wall Mart , and they only have one because I be sure it break all the time -rrb- . I feel the it be also big and bulky . I also find that it be hard to release the upright position with the foot pedal , it be like kick start a motor cycle ! steer clear