These results from my climbing tests show there is essentially no significant difference in performance between the GP5000 TL and the GP5000 S TR in the real world. It took me quite a lot of time to reach the 620 miles / 1000 km this time around. A long time knee injury that seems to get worse in colder weather played a big part in this. Then came COVID-19 which

Foldable and 10% lighter than its predecessor, it reduces friction by 12% to offer a higher level of comfort and performance on the road. In addition, the Vectran Breaker technology provides 20% better protection against punctures. The latter is based on a new-generation synthetic fibre that stands out for its low weight and offers 5 times more resistance to tearing than steel and 3 times more than bulletproof vests. Faster and Safer CyclingAfter the first 620 miles / 1000 km, both the front 28-622 and rear 32-622 still look brand new. The mold line that runs through the middle of the tire is still easily visible on we generally already know if a tire is fast or slow rolling simply based on how easily the tire rebounds when it's deformed. It looks like the GP 5000 loses some of these properties

It’s worth noting, however, the marginally larger size of the GP5000 TL (1.38 per cent at 90psi / 6.2bar) means the casing tension at equal tyre pressures would have been correspondingly higher compared to the GP5000 S TR.

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Both of the tyres also include an updated version of Continental’s Vectran anti-puncture strip, with the new tyres claimed to be 20 percent less prone to punctures than the GP 4000 S II.