Schwalbe G-One Ultrabite tyres review

Schwalbe's most aggressive gravel tyre supplies lots of grip and is surprisingly fast rolling – but it's best for rocky conditions as lateral grip in mud is a little lacking

Schwalbe G-One Ultrabite
Cycling Weekly Verdict

The Schwalbe G-One Ultrabite – particularly in its widest casing – is superb for loose and rocky terrain as well as having good mud-shedding capacity for when the slop covers the hardpack. Despite the aggressive tread, the Ultrabites do roll surprisingly quickly on the tarmac, albeit still slower than a more moderately treaded gravel tyre. The one downside is that in off-camber pure mud, the horizontal knobs of the centre tread don’t offer much in the way of lateral grip.

Reasons to buy
  • +

    Good grip in rocky terrain

  • +

    Surprisingly fast given the tread

  • +

    Very easy to set up tubeless

  • +

Reasons to avoid
  • -

    Lacks grip in off-camber mud

  • -

    Pressures have to be run way below what's printed on the sidewall

  • -


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Added to the G-One line up in 2019 the Schwalbe G-One Ultrabite is – as you may have gathered from the hyperbolic moniker – Schwalbe’s most aggressive gravel tyre. In fact, it's one of the most aggressive gravel specific tyres around; there aren’t many alternatives that match this level of burliness.

>>>Read more: Best gravel bike tyres

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Stefan Abram
Tech features editor

After winning the 2019 National Single-Speed Cross-Country Mountain Biking Championships and claiming the plushie unicorn (true story), Stefan swapped the flat-bars for drop-bars and has never looked back. 

Since then, he’s earnt his 2ⁿᵈ cat racing licence in his first season racing as a third, completed the South Downs Double in under 20 hours and Everested in under 12.

But his favourite rides are multiday bikepacking trips, with all the huge amount of cycling tech and long days spent exploring new roads and trails - as well as histories and cultures. Most recently, he’s spent two weeks riding from Budapest into the mountains of Slovakia

Height: 177cm

Weight: 67–69kg