600/650-17 tubes?

Thank you for the tip on installing replacement steps. That seems like a workable option.

I did speak directly with Universal, but not with Longstone, although they only had offset available on their website. But I contact them directly to see if they can offer anything else. Thank you.

Buy the size of tube you need. Cut out the incorrect valve stem. install a replacement stem of the size, type and location you need. Tire shops and farmers have been doing this for 100 years. It is really not that hard. I buy bent nickle valve stems from universal tire. The come with about a 3 inch rubber base for installing on tubes.

You are talking with Universal Tire ? And, you have also spoken with Longstone in England ?

What do others do?  This has to be a problem for lots of people...  Do people just cram in 700-19" tubes??

L-29 Cords have the same trouble only 18" tubes. No center valve stems! I had a Firestone engineer take pitty on me years ago and make me six at no charge. But that was when they were still making tubes in the USA.
CORDially Mike

Has anyone purchased tubes for 600/650-17 tires recently?  The only tubes this size that I can find have offset valve stems, but the Auburn rims have center stems.  I can get bent brass center stems, but they are so long they stick outside the tire profile.  I talked to Coker, Universal, and Lucas.  They said the only option is to go to a 19" tube to get a centered rubber valve.  Is there really no other option?