Changing 700c x 25c Tires to 23c? 20c?
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My bike has these 700c x 25c tires. I was looking to get even thinner tires for it. However, I don't know if my rims can handle thinner tires. What can I do in order to find out if 23c or 20c might fit on them? A friend of mine converted his 28c to 23c, so I was thinking I could get 20c on mine.
Thanks.
My bike has these 700c x 25c tires. I was looking to get even thinner tires for it. However, I don't know if my rims can handle thinner tires. What can I do in order to find out if 23c or 20c might fit on them? A friend of mine converted his 28c to 23c, so I was thinking I could get 20c on mine.
Thanks.
Should be no problem. Grab a tire from your mate and slap it on will be a sure way to find out fer sure I reckon.
My bike has these 700c x 25c tires.
what type of rims do you have?
what type of rims do you have?
It says "Araya, 700c Japan". Other than that, it has no markings on the rim. My current tires have 25–622 ISO on them. And are marked 700x25c.
If I do get 20c or 18c, I should be able to feel a significant difference right? And I probably won't feel much from 25c to 23c right?
It says "Araya, 700c Japan". Other than that, it has no markings on the rim. My current tires have 25–622 ISO on them. And are marked 700x25c.
If I do get 20c or 18c, I should be able to feel a significant difference right? And I probably won't feel much from 25c to 23c right?
The diff between 23 and 20 will be negligible. The plus with 23s are the far greater variety of brands and price points.
yeah, don't get 20s, at least not on the front, and definitely don't get 18s.
Pretty much all the pros use 23s if they're using clinchers.
Narrower tyres are usually a tiny bit tighter to put on, so don't panic.
What brands are you looking at?
Some tyres are complete crap and others are awesome.
Well, I'm a budget biker. So anything thats cheap yet reliable is good enough for me. But is 25c really worth changing to 23c? And converting my 25c to 23c should be no problem right? It should fit safely?
Well, I'm a budget biker. So anything thats cheap yet reliable is good enough for me. But is 25c really worth changing to 23c? And converting my 25c to 23c should be no problem right? It should fit safely?
It is not worth changing if you don't need new tires... when you do, of course it is worth it as they will be a "little" bit more speed oriented... don't go smaller though because they will actually be slower unless you ride on perfect surfaces.
My bike has these 700c x 25c tires. I was looking to get even thinner tires for it. However, I don't know if my rims can handle thinner tires. What can I do in order to find out if 23c or 20c might fit on them? A friend of mine converted his 28c to 23c, so I was thinking I could get 20c on mine.
Thanks.
Don't do it. Just say no.
Fatter tires are more comfortable and more flat resistant.
I'm trying to go up in size and squeeze a 28 into my road frame.
If you are concerned with rolling resistance IMO go with a slick tire.
Remember ...wider is better.
Stay with your 25c tyres for now unless there is something other than the size that you don't like about them. 23c is about the optimum for most riders and is what most use for road racing. Forget 20c unless you weigh less than 65 kg or are only going to use them on a very smooth surface 18 is stupid on any road. If you weigh more than 90kg 25c will be of benefit.
While narrower tyres are more aero-dynamic, wider ones have a smaller contact with the road for a given pressure and load and so can optimise rolling resistance. Narrow tyres (say 20c) need to be inflated higher to limit surface contact and so are less responsive and therefore generate higher rolling resistance and will slow you down, particularly on rougher surfaces.
For your own safety you need to be sure that your rims are actual clincher rims. There are (older) 700c rims that are not "hooked" - meaning they don't have the internal lips or ridges on the inside that engage the bead of your tyres. Without this the tyres cannot safely be inflated to optimum pressure (particularly if they are narrow) and are at risk of rolling or blowing off.
Take care - Jay.
Stay with your 25c tyres for now unless there is something other than the size that you don't like about them. 23c is about the optimum for most riders and is what most use for road racing. Forget 20c unless you weigh less than 65 kg or are only going to use them on a very smooth surface 18 is stupid on any road. If you weigh more than 90kg 25c will be of benefit.
While narrower tyres are more aero-dynamic, wider ones have a smaller contact with the road for a given pressure and load and so can optimise rolling resistance. Narrow tyres (say 20c) need to be inflated higher to limit surface contact and so are less responsive and therefore generate higher rolling resistance and will slow you down, particularly on rougher surfaces.
For your own safety you need to be sure that your rims are actual clincher rims. There are (older) 700c rims that are not "hooked" - meaning they don't have the internal lips or ridges on the inside that engage the bead of your tyres. Without this the tyres cannot safely be inflated to optimum pressure (particularly if they are narrow) and are at risk of rolling or blowing off.
Take care - Jay.
How do I make sure they are clincher rims? They don't seem to have any problems. Tubes fit fine, and so do the tires. So I assume that they are clincher rims. I'm 70kg/155lbs, I suppose I should get 23c if these fail then.
How do I make sure they are clincher rims? They don't seem to have any problems. Tubes fit fine, and so do the tires. So I assume that they are clincher rims. I'm 70kg/155lbs, I suppose I should get 23c if these fail then.
As I said, make sure the rims are hooked. Deflate the tyre and check that the inside of the flange (inside edge of the braking surface) has that ridge or lip near the top that holds the tyre. If your not sure what to look for get a proper mechanic or someone savvy to check for you. You can't assume that they are clinchers just because the tyres fit. 23mm tyres will be fine for you. 25 will be good too unless you are going to race. At your weight for 23 you need no more than about 100psi in the front and 110psi in the rear. A bit less than that with your 25s would be fine too and give you a better ride.
Jay.
Size wise there should be no problem
Ride wise you will notice a difference, especially if you opt for a decent 23 tyre like the Vittoria OPen KS / KX range (yes, its a plug, we sell them at www.bicyclerubber.com)
I echo some of the thoughts here: there is no need to change them just for the sake of it (but you can of course) but when they are worn and you have to change anyway, it can be done then
Cheers
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