Am I stupid? Please advise...

HarrisonLennon

I just can't buy tyres? Never have. I'm trying to buy online. I have a slim road style wheel. The size is 32-622 or 28 x 1 1/2 x 1 3/4 I can't seem to find my size? I know I'm doing something wrong

Darkglasses

You have a normal road bike? Choose either 700x23 or 700x25.

HarrisonLennon

Darkglasses wrote: »

You have a normal road bike? Choose either 700x23 or 700x25.

It's an old steel TWA steel frame. I have it single speed. I wasn't aware I could pick any size. So I can choose any size tyre that will fit my wheel? How do I know what fits my wheel?

CSteven88

25x700 should fit it grand. If you are still unsure just pop into your LBS and ask them about the size you need.

inc21

Copy paste from: http://guides.wiggle.co.uk/road-tyres-guide/

Tyre dimensions

Width: Tyre width plays a significant role in how a bike will behave on different surfaces. The most important thing to understand is that tyre width is always dependant on the type of riding you. The most popular width on road bikes is 23mm wide. This narrow profile is in keeping with the characteristics required for fast riding on a smooth road surface. The wider a tyre, the more comfortable the ride is likely to be, due to the increased air volume. This can act as a small method of suspension.

Diameter: Adult road bikes tyres are measured in metric and are typically 650c (571mm) and 700c (622mm) in size.

So it's 700 x 28mm or 700 x 32mm

Darkglasses

Yeah sorry I'm mistaken, I don't think your bike will take 700x23 or 700x25, it's a slightly more old-fashioned wheel design I think. Probably handiest for you to bring it into your local bike shop.

browsing

hi HarrisonLennon,
have you checked if the size is written on your current tyres? sometimes it's moulded into the rubber so can be hard to see. sounds like if it's converted to single speed in the last few years, 700Cx23 or 700Cx25 *should* do the trick.
There are some old style race wheels that are a slightly different diameter in which case it's difficult to figure out the right size.

HarrisonLennon

browsing wrote: »

hi HarrisonLennon,
have you checked if the size is written on your current tyres? sometimes it's moulded into the rubber so can be hard to see. sounds like if it's converted to single speed in the last few years, 700Cx23 or 700Cx25 *should* do the trick.
There are some old style race wheels that are a slightly different diameter in which case it's difficult to figure out the right size.

The current back and front tyre are 28x 1 1/2 x 1 3/4.


I just want to be able to buy easily online.

browsing

HarrisonLennon wrote: »

The current back and front tyre are 28x 1 1/2 x 1 3/4.


I just want to be able to buy easily online.

Good, just get these again (if you can). I don't think any 700c tyres will fit. also, be very careful, for some tyre sizes, 1 3/4 is not the same as 1.75!!! I can see the trouble you've had in the past!
I think you might possibly struggle to get these online.
Are these old wheels?
have you ever been on sheldonbrowne.com? he's dead now but he has reems of really good info on there. he goes through tyre sizes and which are compatible with each other etc. check this out and you should be sorted!

HarrisonLennon

browsing wrote: »

Good, just get these again (if you can). I don't think any 700c tyres will fit. also, be very careful, for some tyre sizes, 1 3/4 is not the same as 1.75!!! I can see the trouble you've had in the past!
I think you might possibly struggle to get these online.
Are these old wheels?
have you ever been on sheldonbrowne.com? he's dead now but he has reems of really good info on there. he goes through tyre sizes and which are compatible with each other etc. check this out and you should be sorted!

Really appreciate all the help folk I do. I'll check out that site. And pop into a shop to to start me off. Helmets in the post nice bmx style lid.

thebouldwhacker

HarrisonLennon wrote: »

I just want to be able to buy easily online.

Ah, I see your problem...

mirv

If it's a 622-32 tyre that's currently mounted on your rim, then any of the '700c' tyres between 20 and 35mm should fit fine.

700c tyres fit 622mm rims.

622mm refers to the ISO/ETRTO rim size and is the same as the old french standard of 700c. The fractional tyre definitions such as 28"/29" x 1 1/2 or 1.5 refer to the size of the tyre when mounted and can be confusing so ignore them.

http://sheldonbrown.com/tire-sizing.html

WillyFXP

browsing wrote: »

1 3/4 is not the same as 1.75!!!

erm...yes it is.

HarrisonLennon wrote: »

I just can't buy tyres? Never have. I'm trying to buy online. I have a slim road style wheel. The size is 32-622 or 28 x 1 1/2 x 1 3/4 I can't seem to find my size? I know I'm doing something wrong

http://www.chainreactioncycles.com/ie/en/tyres?f=2260,4294958068,4294941566,2247,4294941704

Any of these will fit your wheels.

Darkglasses

WillyFXP wrote: »

erm...yes it is.

Apparently not according to Sheldon -

Traditional tire size designations are confusing, and can lead to considerable trouble. For instance, a 26 x 1.75" tire will not fit a 26 x 1 3/4" rim!

http://sheldonbrown.com/harris/tires/635.html

WillyFXP

Darkglasses wrote: »

Apparently not according to Sheldon -




http://sheldonbrown.com/harris/tires/635.html

Yeah I just read that, but it's not really relevant in this case as those sizes only refer to 26 inch wheels and tyres. Shame he doesn't explain why though. If anyone is interested, I educated myself and found out that 26 x 1.75 relates to the tyre size and 26 x 1 3/4 refers to the rim size. 26 x 1.75 tyres actually fit 24 inch wheels.

Type 17

Having worked in an LBS, and ordered tyres for customers with bikes from all over the world (Soviet-era Russian stuff is particularly unusual/confusing ), the only way to be sure is to go by the ETRTO size - it's the only way to be truly sure.

PS: there are at least three so-called 26-inch diameter sizes still in regular use:
26 x (eg) 1.75 for ATB/cruisers ETRTO = 559
26 x (eg) 1&⅜ for old English bikes like Raleigh 3-speeds ETRTO = 590
26 x (eg) 1&⅜ for French shopping bikes, ETRTO = 584

...and there are others.

browsing

WillyFXP wrote: »

Yeah I just read that, but it's not really relevant in this case as those sizes only refer to 26 inch wheels and tyres.

WillyFXP wrote: »

erm...yes it is.

http://www.chainreactioncycles.com/ie/en/tyres?f=2260,4294958068,4294941566,2247,4294941704

Any of these will fit your wheels.

I think the 1 1/2 or 1.5 problem is still relevant here as it can mean two very different wheel diameters. (635mm or 622mm).
HarrisonLennon, since you seem to have had problems buying the past, you may well have a 635mm wheel, in which case 700C tyres will not work.

Type 17Type 17 would be able sort sort this out very quickly.

How to do this is on sheldon's article:
http://sheldonbrown.com/tire-sizing.html

WillyFXP

browsing wrote: »

I think the 1 1/2 or 1.5 problem is still relevant here as it can mean two very different wheel diameters. (635mm or 622mm).
HarrisonLennon, since you seem to have had problems buying the past, you may well have a 635mm wheel, in which case 700C tyres will not work.

Type 17Type 17 would be able sort sort this out very quickly.

How to do this is on sheldon's article:
http://sheldonbrown.com/tire-sizing.html

OP clearly states the size as 32x622, 700c tyres will fit

browsing

OK, fair enough. When I asked the OP what size was written on the tyres, he didn't mention 32X622 so I thought potentially he might not have a 700C rim.