Can someone explain what the benefits to each are?
flxpain
Many tires have a lower threadcount casing with their wire bead versions than their folding bead versions. This is not always the case but is more often than not. It is also very common for the wire bead version to use a different rubber compound (usually harder) than on the folding bead version. The wire bead, casing, and the rubber compound make it heavier, less compliant, and in some conditions provide less traction. But they are also usually more durable with a thicker casing and a harder rubber compound...and of course cheaper.
People have already posted that you will normally save weight (typically and ounce or 2) with a folding (Kevlar) bead vs a wire bead. This is splitting hairs on the subject, but A lighter weight tire would be easier to accelerate and decelerate because the rotational mass would be easier to get started and then stop but the rolling resistance would be the same....
All else being equal:
- A lighter beaded tyre will gain speed at a higher rate (accelerate) than a heavier bead for a given input.
- It follows that it takes less input to gain a certain speed with a lighter bead.
- The differences can be very small.
- To maintain a constant velocity, the energy input is EQUAL. (on the flat)
- To decellerate, the heavier bead requires more braking input, for a given rate of speed loss.
- Lighter overall wheel weight has other effects such as reduced unsprung mass, plus areas such as lifting and moving the bike around underneath you.
- Folding beaded tyres are often built to a higher standard ie carcass, tread and compounds.
All else being equal:
- A lighter beaded tyre will gain speed at a higher rate (accelerate) than a heavier bead for a given input.
- It follows that it takes less input to gain a certain speed with a lighter bead.
- The differences can be very small.
- To maintain a constant velocity, the energy input is EQUAL. (on the flat)
- To decellerate, the heavier bead requires more braking input, for a given rate of speed loss.
- Lighter overall wheel weight has other effects such as reduced unsprung mass, plus areas such as lifting and moving the bike around underneath you.
- Folding beaded tyres are often built to a higher standard ie carcass, tread and compounds.
Folding beads are harder to get on the rim. It took me 10 minutes to get a folding tyre on the rim to seat properly lol. It needs practice I guess.
The thing is i had the same model in wire version before and had zero issues mounting. Derp. I never thought that same manufacturer would have a different bead size on the same model, only in different versions... except UST and tubeless ready tyres of course.
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