Inner rim width equals tire width?
Hi everyone, I want to buy an additional set of wheels for my gravel bike so I can ride with thinner tires in the warmer months. My bike is a Focus Atlas with Boost standard. I'm currently considering the DT Swiss HE 1800 Spline or the Hg1800 Spline. The latter has a 24-inch inner rim width and a 28-inch outer rim width (the former is a bit thinner—20-inch inner, I think). Now I'm wondering what tire width I can use on it. I'd like something between 28 and 32-inch. I'm currently using a 45-inch tire.
Thanks in advance for your answers! 🙂
Ps.: I'm not quite sure about all the tables
(1 votes)
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Mounting you can even have a tire that is narrower than the rim width. Looks like quite modest out. The problem is that the lateral part of the tire, which is usually designed for a lot of grip in the corner position, then also rolls on the floor in a straight line and produces a high rolling resistance. And if you go into the curve, the tire does not have the lateral hold for which it is designed.
For this reason, the tire should be approx. 1.5x to be as wide as the rim (gap width). A 24 mm rim with 32 mm tire may still go.
In my eyes, you can reach your goal of lower rolling resistance on summer roads even if you simply pull on the existing wheels slightly more easily profiled tires and pump well.
Hey, thanks for your detailed answer! Just got me the dt Swiss for good luck (they also do this beautiful clack 😅 in the free run) and also wrote with one that drives the wheel rim with 32 he tires and is super satisfied.
I’ll see how I do it! The current wheels I want to have gone in all cases… had 7 plates in a half year now (that will not be on the wheels of God But I’m just annoyed by it)
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