Tyre Sizing Advice?

[Maherees]

HI all,

I have a gravel bike and want to change the tyres it came with. The manufacturer recommends that the wheels should not go below 28 mm - does this just translate as a tyre of 1.75 would be 44 therefore well within the limit?
many thanks

 

[vickster]

What tyres do you have, what's wrong with them and what sort of tyres are you looking for?

 

[cm2mackem]

It's down to rim width, which is one of the numbers on the rim, and frame/fork clearances, the chart is for rim widths and is conservative

 

[Maherees]

I have Clement MSO 650bx50mm and would like to swap them for panaracer gravel king, either 1.75 or 1.9. I would prefer the smoother tread pattern of the panaracer.

 

[andrew_s]

28 mm is 1.125, your 650B x 50 tyres are 2.0, so there's no problem swapping.

Just make sure you get the 650B size, aka 27.5" or 584 mm

 

[Ajax Bay]

The manufacturer recommends that the wheels should not go below 28 mm - does this just translate as a tyre of 1.75 would be 44 therefore well within the limit?
I have Clement MSO 650bx50mm and would like to swap them for panaracer gravel king, either 1.75 or 1.9. I would prefer the smoother tread pattern of the panaracer.

You have a rim which requires ISO 584 mm - 650B, 26 x 1 1/2", "27.5" (as Andrew has said). That the wheel diameter. The manufacturer suggests a minimum width of tyre for the rim is 28mm (1 and 1/8 inches). Your current tyre is 2" wide. Either a 1.75" or 1.9" Panaracer would be fine. The 1.75" tyre will show on the tyre wall as 44-584.

 

[Maherees]

Thanks all I've put the order in.