I recently bought a 2016 Felt V55, which will take up to a 700x38 tire (actually, it will take a 40 in the front). It seems that current gravel bikes are running up to 45-50mm tires, making this Felt seemingly obsolete. My prior gravel experience was with a cyclocross bike and 33mm tires, so even a 38 seems wide. My question: Is it enough? I bought the bike as it was a good deal, it’s nicely spec’ed and it fit me well. I’ve been on a few gravel rides with it and found it incrementally more comfortable than a cross bike, but I have signed up for a 100km gravel race and wonder over the long haul is it will be enough.