Panaracer GravelKing SS
Top PickWhat We Like
- Fast semi-slick center on pavement
- Shoulder knobs hold hardpack corners
- TuffTex casing and BeadLock bead
- Wears slowly for a fast tire
Worth Noting
- Semi-slick center struggles in soft, loose dirt
- Size
- 700 x 40C
- Tread
- Semi-slick center, shoulder knobs
- Weight
- 1.1 lb
- Tubeless
- Tubeless ready
Read the full review
A semi-slick center with real shoulder knobs is the smartest compromise in gravel, and the GravelKing SS is the version of that idea we point most riders to. The center strip runs almost unbroken, so pavement and hardpack do not feel like a tax on the way to the dirt, and the shoulder blocks are there the moment you lean into a corner. At 700 x 40C it slots into the width most gravel frames clear while leaving enough air volume to take the edge off washboard.
The casing is what keeps it at the top of this list. Panaracer's TuffTex layer is there to shrug off cuts, and BeadLock holds the bead seated when you push a wide 40 mm tire hard through a corner, which is exactly the pairing we want for a tubeless setup at low pressure. The center tread also wears slowly, and that matters more than it sounds: a fast tire that squares off in a season is not actually fast.
Mounting is the catch, and it is worth planning around. The bead is tight enough that the last few inches can turn into a fight, and a tire that seats beautifully with a compressor at home is a different proposition on a roadside in the rain. Practise the first install with two good levers, carry a lever you trust, and treat the tight fit as the price of a bead that stays put. If your riding is mostly loose-over-hard descents and chunky climbs, the GravelKing X1 further down this list trades a little tarmac speed for the knob to match.
Bottom line: The tire we recommend first for mixed-surface riding: it rolls like a road tire on tarmac, finds grip on hardpack, and takes a tubeless bead that stays put.