Help needed finding right inner tube

[ian turner]

Have a giant cypress dx with 42-622 (700x40) tyres with presta valves. These are neither road nor mountain bike wheels therefore uncool hence as far as I can determine in limited supply from online retailers.
Was wondering if these , specifically the last but one entry, are the correct size?

 

[Paulus]

First of all, what valve do you have at the moment, presta, or Schrader? The tubes you are looking at will fit the bill, as you are running quite large tyres. There are these as well.http://www.evanscycles.com/products/schwalbe/inner-tube-700-x-28-42-ec001866

 

[ian turner]

Thanks. Seen those and unfortunately it lists the prestas as discontinued. I'm guessing the discount on crc may indicate those are also likely to be discontinued
The 2010 cypress dx is 700x38 which is stocked by halfords as 700x28-38 which is their largest

 

[TheDoctor]

Conti make them too - this page at Wiggle

 

[ian turner]

Thanks. Went for the Michelins anyway due to the discount and needing them before te weekend on the off chance it doesn't rain . Currently have a slow puncture which will probably be a pain to spot and may very well be from the previous puncture repair.