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I have a pair of conti 4 seasons and a pair of marathon pluses. I use the latter on a daily basis for commuting because of their puncture resistance, and haven't used the contis in a while now. I will be going on a tour with quite a lot of hills and climbing. I will be taking a couple of kg of stuff in a rucksack. The question is, will there be a noticeable difference between using the marathons vs using the contis? Will the rolling resistance make any real difference (for climbing)?

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    Flat tires have horrible rolling resistance. – RoboKaren Apr 3 '17 at 3:42
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There is no way tires are different than other weight when climbing. The saying about rotating mass being equivalent to double non-rotating mass applies only when accelerating and even then you have to take into account that tires are quite lightweight compared to rest of bike and rider.

Rolling resistance difference can be noticeable even when climbing, but Conti 4 seasons are among the worst road tires and Schwalbe Marathon plus is one of the best rolling extremely protected tires, so the difference isn't necessarily that great.

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  • >so the difference isn't necessarily that great. Will it be noticeable though? Will it be easier to climb with the contis? – Matías Guzmán Naranjo Apr 2 '17 at 21:56
  • I think you both need to re-read what's said above. – Daniel R Hicks Apr 3 '17 at 0:45
  • @MatíasGuzmánNaranjo it really depends on how sensitive you are. Some people claim to notice that tire pressure is off by 0.1 bar, others ride happily on conti 4-seasons without noticing the resistance. – ojs Apr 3 '17 at 16:13
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Short answer: you will not notice the difference in tire choice. Since you are adding a couple kg of rucksack luggage to your bike, that will be what you notice, not your tires.

Since you are touring and not racing your thoughts should turn to endurance of your body and your equipment. The heavier, puncture resistant tires may be a wise tire to use so you won't be as concerned about flats enroute to your destination. The extra KG you will be carrying is going to make noticeable changes to how your bike handles along with how much effort your are going to exert uphill. Take the time leading up to ride with your expected gear in place so you know what it's going to feel like.

Cheers! Have a great ride.

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