Ive had mine since July and Im thinking of getting new ones in March. Did know if there was a guide you followed. Thanks!
2011 Race Schedule!
2/20/11-Flat 5k Foxboro-28:10
3/5/11-Irish 5k Pawtucket-26:57 PR!!!!
3/19/11-St.Pats 5k Providence-26:59
7/4/11-Harvard Pilgrim 10k Foxboro-1:00:00 Instant PR!!
8/7/11-Rock-n-Roll 1/2 Marathon Providence-2:11:07 Instant PR!
10/10/11-Tufts 10k for Women Boston-????