Panaracer Gravelking SK Tubeless Gravel Tire (Black/Brown) (650b) (48mm) (Folding)

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Panaracer Gravelking SK Tubeless Gravel Tire (Black/Brown) (650b) (48mm)
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A high performance all-road tire that performs well through a wide range of inflation levels. The mix of small, closely spaced center knobs and longer, taller cornering tread blocks is appreciated in soft or loose surfaces.


  • ZSG (Zero Slip Grip) natural rubber compound provides consistent performance through a wide range of temperatures and wears well
  • Bead-to-bead puncture protection belt
  • 126 TPI Advanced Extra Alpha casing performs well through a wide psi range, minimizes rolling resistance
  • Actual width of installed tire can vary by 6mm or more depending on inner rim width and inflation pressure. See technical info for more details
  • Available in wide range of sizes

Tire Type: Tubeless (Clincher)
Bead: Folding
Compound | Casing: ZSG | Anti-Flat
TPI (Threads Per Inch): 126 TPI
Puncture Protection: Yes
Inflation: 95 PSI
Color: Black/Brown
Weight: -

This product was added to our catalog on July 1, 2019

Eric Halvorson
Thursday, Jul 1 2021 (about 2 years ago)
Panaracer Gravelking SK Tubeless Gravel Tire (Black/Brown) (700c) (32mm)
PHENOMENAL TIRE! My bike (Lynskey) came with 40mm Kenda's that had very small & low central knobs and moderate shoulder knobs. There was a transition point as you cornered, where the shoulder knobs would catch. I ride around Asheville, NC on some pavement but mostly gravel/dirt at Bent Creek, Pisgah, etc that can get gnarly, and this tire concept seemed to make sense. I just replaced them with the green/gummy Panaracer GravelKing SK tubeless tires (43mm). Most of me got them because of positive reviews, Youngblood's strong recommendation, and I loved the Panaracer Smoke/Dart combo on my steel hardtails of yesteryore. A bit of me got them because they were green with gummy sidewalls (let's be honest) - I knew they would look kick ass with brushed ti and my honey B17! I had a hard time believing the tread pattern would be an upgrade, instead thinking I would gain on smooth surfaces but lose in the rough stuff - all the while riding awesome looking tires. I rode them today at Bent Creek after some rain and I LOVE these tires! The extra width allows you to run a slightly lower pressure, resulting in a great ride: 1) The jarring chatter is dampened without any perceptible reduction in rolling efficiency (we are riding on dirt after all). 2) The contact patch is generous and I just had confidence in the grip throughout the turn instead of waiting for the shoulder knobs to catch and having my mind on what my tires were doing. Before I was more aware of my tires - with these you just forget they are there and enjoy the ride! They are predictable as to when they might slide, and do so somewhat gracefully. I was riding with someone on 27"/650 wheels with 2.1" tires and he is usually faster on the downhills but this time we were equal. I had so much more confidence with these tires but felt no loss of efficiency on dirt. I suspect on pavement they're less efficient, but for me that point is moot - I like to ride my gravel bike on gravel, so I prefer tires optimized for dirt.

My only complaint - Panaracer should make the green tires available permanently!

Tire Size Chart

Inch SizingISO / ETRTO
16" BMX / Kids305
16" Recumbent349
18" BMX / Kids355
20" BMX / Kids406
20 x 1-3/4"419
20 x 1-3/8", 20 x 1-1/8"451
22" Wheel Chair501
24" BMX / Kids507
24" BMX Race (Fractional)
24" Road
24" Old Schwinn S-7 Size521
24" Wheel Chair540
24" Old Schwinn S-5 Size547
26" Mountain559
650c Small Road Bike571
27.5 / 650b584
26 x 1-3/8590
26" Old Schwinn S-6597
700c / 29" / 28"622
27" Road (Fractional)630
28" Track Tubular635
36" Big Bike787