Rolling Resistance for the G-One 35 vs the WTB Exposure 34????
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Rolling Resistance for the G-One 35 vs the WTB Exposure 34????
I've been trying to find the numbers for this but have been unsuccessful. Rolling Resistance seems like it should be a basic spec like weight, etc.
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Rolling resistance is a can of worms. Whereas there's not a ton of ambiguity in popping something on a scale, there are a lot of ways of measuring rolling resistance (and a lot of nuances within any method), and reconciling them remains a pretty fuzzy process.
It's possible to make useful measurements, but I'm not sure that manufacturer-provided crr data would be much more useful than their "use this tire for this purpose" recommendations. Some of them already describe their tires with undefined bars labelled "speed" or "rolling resistance," like the websites for Schwalbe and Vittoria.
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Thank you @HTupoley I really appreciate the information. I thought there may be a standard way to measure the friction between rather well groomed road and the tire.
Even weight isn't always stated. It can be batch-variable, and manufacturers don't always like advertising it anyway.
Rolling resistance is a can of worms. Whereas there's not a ton of ambiguity in popping something on a scale, there are a lot of ways of measuring rolling resistance (and a lot of nuances within any method), and reconciling them remains a pretty fuzzy process.
It's possible to make useful measurements, but I'm not sure that manufacturer-provided crr data would be much more useful than their "use this tire for this purpose" recommendations. Some of them already describe their tires with undefined bars labelled "speed" or "rolling resistance," like the websites for Schwalbe and Vittoria.
Rolling resistance is a can of worms. Whereas there's not a ton of ambiguity in popping something on a scale, there are a lot of ways of measuring rolling resistance (and a lot of nuances within any method), and reconciling them remains a pretty fuzzy process.
It's possible to make useful measurements, but I'm not sure that manufacturer-provided crr data would be much more useful than their "use this tire for this purpose" recommendations. Some of them already describe their tires with undefined bars labelled "speed" or "rolling resistance," like the websites for Schwalbe and Vittoria.
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There is no standard measurment, but the site above does a great job - if they have your tire.
Generally Schwalbe has some of the best rolling resistance numbers.
Generally the Schwalbe tires do amazingly well. I have a 60mm G-One speed that has a fraction of the rolling resistance that I am used to with mountain bike tires. Its crazy. I have some G-One (all around) and fairly aggressive Schwalbe CX tires - and they roll surprisingly well too. They are not the lightest tires, but presumably they are fairly strong (They do hold air without sealant).
There is a lot that goes into how well a tire rolls. Tire construction, sidewall stiffness, TPI, rubber, tread - it all adds up.
Generally a supple tire (high TPI with thin sidewalls) rolls the best - especially at lower pressures. But a little sidewall protection may be worth it for many of us.
Generally Schwalbe has some of the best rolling resistance numbers.
Generally the Schwalbe tires do amazingly well. I have a 60mm G-One speed that has a fraction of the rolling resistance that I am used to with mountain bike tires. Its crazy. I have some G-One (all around) and fairly aggressive Schwalbe CX tires - and they roll surprisingly well too. They are not the lightest tires, but presumably they are fairly strong (They do hold air without sealant).
There is a lot that goes into how well a tire rolls. Tire construction, sidewall stiffness, TPI, rubber, tread - it all adds up.
Generally a supple tire (high TPI with thin sidewalls) rolls the best - especially at lower pressures. But a little sidewall protection may be worth it for many of us.
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