Powertube adapter 500 to 625

[Rap Dance 9000]

Hi all, anyone know where I can get a cheap adapter for a powertube 500 to 625. Planning a trip and want a backup . Trek had them , but out of stock at the mo . Cheers ??

 

[Mteam]

I've been waiting for them to come back into stock for months but so far no joy.

As well as the adapter trek sell, moustache bikes also make an adapter but I can't find it available to order online anywhere.

I'll be watching this thread with interest.