Ghetto Tubless Help

WelshTom Posts: 52
edited June 2009 in MTB general
Hi there,

I am about to have a got at converting my bike to tubeless with the ghetto method but had a few questions I cant find the answers to and was hoping someone could help.

1. My rims currently use Shrader valves but I would like to change to Presta, will this cause any probs or is it a straight swap?

2. What size tubes do I need? Can I use 20 x 1.1/8-1.3/8 or will they be too small (CRC are currently out of stock of the 20 x 1.5-2.5)? My current tyre are 26 x 2.1.

Thanks in advance for any help, Tom