Indeed, steel bikes do that.But then, wouldn't the more comfortable bile allow one to ride harder for longer?
Indeed, steel bikes do that.But then, wouldn't the more comfortable bile allow one to ride harder for longer?
Not these days, but I used to and I never replaced a chainring through wear.
The speed you ride on a commute or a leisure ride will often remain constant whether you are on a steel bike or a 3kg lighter carbon machine because your pace is mostly governed by your perception of motion. But you will use more energy on to keep the heavier bike moving at that speed.
The law of physics will dictate that.
I volunteer in a community bike workshop and it is very unusual to find old aluminium chainsets where the teeth on the most used rings are not badly worn in a couple of places, especially mountain bikes, less so on road bikes. We spend a lot of time cannibalising chainrings. OTOH we virtually never come across even very old road bikes where the steel chainrings are worn to a significant extent.
Am I reading that correctly, are you saying there are a few teeth on the ring worn more than in other parts? Not all the teeth look the same on a lot of new rings.
Yes. For some reason we find that teeth in a couple of places wear more than others, more so on mountain bikes. I have always assumed this relates to chain position when the arms are horizontal, putting more pressure on the teeth at the top of the ring when people do not apply equal pressure for the full circle.
I am happy for someone to come up with a more technical answer to an issue we see a lot.
Fine if you can spend 50% of a ride coasting.Until its time to coast, then the greater interia of a heavier bike thpakes back the advantage. Kinetic energy.
The law of physics will dictate that.
Yes, that does happen. On plain singlespeed rings you can move the ring around the spider to get more life from it. Sprockets on s/s, hub geared or fixed bikes suffer the same problem if the number of teeth on the ring is divisible by the number of teeth on the sprocket. This is why prime numbered rings like 47T are often recommended.Yes. For some reason we find that teeth in a couple of places wear more than others, more so on mountain bikes. I have always assumed this relates to chain position when the arms are horizontal, putting more pressure on the teeth at the top of the ring when people do not apply equal pressure for the full circle.
They are there to assist changes across the rings. A little bit of googling will tell you a lot more.
Two or three teeth worn to half the depth of those around them, in two places on the ring, are there to assist changes? That must explain it.
That is correct.