Inner tube help Please 🙏🙏

[Lilypops]

Hi guys apologies for the basic question i normally go into halfords and the guy helps me ! I have a specialized tarmac size 56 and i also have a boardman mx i need to order tubes online for them both what sizes should i order and any recommended sites ? Ive attatched both wheel images . Any help greatly appreciated

 

[Ajax Bay]

Sizes of two tyres are 622-23 and 622-35. Inner tubes are sold with same metrics, but normally over a range: eg 18-23 or 18-25 or 28-38.
Take care to get the correct valve: Schrader (car tyre type) or Presta (thinner and longer) and the shortest valve length offered.
Your local bike shop may well have stayed open (bike shops are on the list to be so allowed) and will sell you the correct tubes and appreciate the business.

 

[Cycleops]

For the first you'll need one suitable for 23c X 700c, the second for 35c X 700c. The first needs to be specific to 23c although 25c will also fit. The second are sometimes offered in a range like 35-45c like this:
https://www.decathlon.co.uk/bike-inner-tube-700x35-43-presta-id_8311103.html
I'm guessing you've got presta valve as shown.

 

[MichaelW2]

You have fairly standard rims so go with standard length valves, not the extra long ones designed for deep rims.

 

[Spiderweb]

These from Planet X. The 40mm valve will suffice.
18-25 for your Tarmac & 28-35 for your Boardman.
£1.99 each with extra 20% off using code SPRINGFWD20.

https://www.planetx.co.uk/i/q/TUVAV700/vavert-700c-inner-tube

 

[Pale Rider]

There's a fair bit of flexibility over tube sizes as others have said.

This applies to width, but also diameter.

Some Schwalbe tubes are specced for both 700c and 650b, which is a smaller diameter wheel.

Worth getting close to the size, particularly for the narrower 23c tyre.

Trying to stuff an oversize tube in a narrow tyre can lead to fitment and use issues.

The tubes linked by @Spiderweb would be just the job, right size, decent make, and good value.

 

[Racing roadkill]

The MX has rims with valve holes designed for Schrader valves, although I run tubes with presta valves on my MX , with no issues.

 

[Spiderweb]

The MX has rims with valve holes designed for Schrader valves, although I run tubes with presta valves on my MX , with no issues.

Oops, presumed they were both Presta.

 

[Spiderweb]

The MX has rims with valve holes designed for Schrader valves, although I run tubes with presta valves on my MX , with no issues.

Just looked on eBay and every Boardman MX I can see, there are lots, have Presta valves.

 

[Racing roadkill]

Just looked on eBay and every Boardman MX I can see, there are lots, have Presta valves.

Mine never did. The holes were ( and still are ) for Schraders. I use Prestas, with no issues, but they’re supposed to be Schraders. I use the MX a lot, and although it rarely suffers punctures ( I use Marathon plus tyres ) when it does need new tubes I use prestas.

it’s a 2015 MX comp.