Top 500 Contributor
I don't know of the Charge Plug 2014, but these guards are designed to fit road frames which which do not have full mudguard clearance. So long as there is a clear gap between the tyre and frame you'll probably be ok. I use them with a Verenti frame using 23mm tyres - which are the maximum practical tyre size for these guards. For the most part they serve their purpose which is to keep your backside and feet dry. Needless to say, they are less effective than a frame which has the clearance to fit full size (e.g. SKS) guards.