Hi guys, first of all sorry if this has already been answered but I have tried searching for my issue and I'm not having any look so here I go. Bought a WR125X last week 66 plate with only 4.5k miles, the bike is in good condition and runs smoothly. The other day I pulled up at a roundabout and I was waiting for the traffic to clear when some guy bumped into me (only visual dmg was license plate holder was broke) and I only mean a little bump as I was only nudged forward a foot at the most. As I was riding home after the bump I noticed that when I was trying to change gear up it would sometimes get stuck and won't let me go up a gear, I didn't think much of it at the time. I've been going out other the past two days for little rides and it keeps happening and the only way I can get around it is to go down a gear and then back up to try again... Sometime it works sometimes it doesn't. This issue only happens when I'm trying to go up a gear and I've only had it happen to me when I'm trying to go from; 2nd to 3rd, 3rd to 4th, 4th to 5th and 5th to 6th. I have not had this issue going from 1st to 2nd. I'm only asking on here because if it is a simple fix then I might be able to save my self some money and to it my self instead of taking it to a garage. Any help would be appreciated. Thanks.