Reviews over the

Challenge Cross Grifo TLR

Tubeless mounting: the tyre is difficult to mount on the rim. It pinches rather hard. Once the anti-puncture fluid is added, however, it remains well pressurised. What is noticeable is that the cheeks of the tyre are rather thin. As a result, liquid passes through the tyre in the form of small blisters. The tyre loses a little pressure after a few hours of standing still. Test ride: Once on the track, the tyre offers very good grip and feels light. However, after 10km of cycling, both tyres went completely flat. The front tyre almost rolled off the rim on a corner. After pumping some extra air, I was able to continue for a few km, but then unfortunately the same story. Conclusion: this tyre is not a TLR tyre! It stays roughly at pressure when not cycling, but once you start riding, it deflates. The ideal pressure is mentioned on the tyre: 1.8-2.5 bar, but at this low pressure it is definitely not possible to cycle with it.

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