Schwalbe Tyres no sizes .

[FirstV8]

I purchased a second hand set of wheels with Schwalbe  ,Rocket Ron and Racing Ralph tyres on but cannot determine the width of them . There does not seem to be a marking on them . Is it indicated somewhere on the inside or in code somewhere ?

[Capricorn]

I purchased a second hand set of wheels with Schwalbe  ,Rocket Ron and Racing Ralph tyres on but cannot determine the width of them . There does not seem to be a marking on them . Is it indicated somewhere on the inside or in code somewhere ?

 

So you saying there's absolutely no markings or numbers on the side walls of any of those tyres?  bit unusual tbh.

 

But if that is indeed the case, the following link provides a lot of help in determining the size of the tyres, and what size tyres are appropriate for your wheels.

[Simon123]

It'll be just between the sidewall and the tread embossed on the tyre.  Sometimes they're only on one side.

 

But those are the two crappiest tyres in their line up, so bin 'em and get nicer ones.