Harder to find. I have bought them by the case when I track them down, often on RC-Tech or Ebay.

A few other sources listed below. If you go with the "new" style GRP tire, they are now made in the larger diameter size. Same durability as the smaller yellow wheel.

You will find several runs of tires that come from GRP and are the same product. GRP/TRC/Speedmind.

Try some out. If they work for you, buy in bulk as they are harder to track down on short notice.

These are the same tire, produced by GRP and would run the same as a TRC tire
http://www.rcmart.com/catalog/tire-w...facturers_id=0

http://www.the-border.com/product.ph...9&bestseller=Y

http://www.stormerhobbies.com/cgi-bi...umb=on&smode=0