Tyre interchangeability

[David Garside]

Hello.
I've had a look around the forum but can't find a ready answer to my question, so hopefully someone will be able to advise me.
I have a Decathlon Riverside 3 hybrid which has 700 35c tyres as standard fitted. I would like some tyres with less rolling resistance if possible and wondered if 700 25c tyres would fit the rim ok...I was thinking of Specialised or similar with a slightly more smooth tread pattern to make it a bit less hard work on longer, hillier routes which I'm starting to tackle.
Look forward to hearing from anyone.
Thanks.
David.

 

[Cycleops]

Don't have any experience with the bike but it looks like you could probably drop down to 28c section tyres with a smoother tread. 25c might be pushing it a bit too far. I have 2cm wide rims on one bike which has 25c tyres, you could maybe go to 2.5cm. Decathlon don't specify rim width unfortunately.

 

[shouldbeinbed]

agree with the above, 32 or 28 if you really want to go extreme, son2 has a Riverside1 and the tyres are very much hybrid type general purpose gripped tyres. A slicker tread pattern intended for roads at 35 or 32 with a better quality would be an appreciable difference I think,
Pump whatever tyres up well too, to help lower the squidge factor and road rolling resistance.

 

[Gravity Aided]

Schwalbe used to have a chart showing which rim would take which tires, but that comes up 404 now.

 

[ufkacbln]

IIRC ....

Look atthe rim, and it will have an "ERTRO" number in the format xxx-yy

The xxx is the diameter of the trye and non-negotiable

The yy is the width of the tyre and as a rule of thumb so long as this is the same or less than the tyre value you are OK

 

[ufkacbln]

Secondly, there is actually (according to some) more importance in material, tread and pressure thanthe width in rolling resistance.

A wide high pressure all rounder such as a Big Apple will have better rolling resistance than a narrower slick tyre poorly inflated tyre

 

[Alien8]

Schwalbe used to have a chart showing which rim would take which tires, but that comes up 404 now.

According to their table in this document if you've currently got 35mm tyres you could go down to 28mm on a 19c rim or 25mm on a 17c rim.

 

[David Garside]

Well! What a great response. I'll check to see if there's an "ERTRO" mark anywhere and go from there. I might pop into the lbs when I know and see what they say but it looks like maybe 28 or 32 would make it a little easier for me.
Thanks again everyone, it's much appreciated.

 

[Gravity Aided]

A 28 would be a good middle of the road choice. They always seem to put out those hybrids with 35's and that seems like a lot of tire, even for a hybrid. 28's may be a bit of a stretch, though. You may have to order them. My Local LBS's (3) all had to go to the web to get some, so I just went to Amazon myself.

 

[David Garside]

I've just had a look and the rims are 622 19c, alloys. Looks like 28's are the ones to go for then.