I have some 5x10x4 rubber sealed bearings on my website, they're our own brand Blue Lightning, but i'll put some bulk packs on later this afternoon. 10pcs for £5.99. We get alot of local rally x drivers using them because of there durability and high quality.
We have also started stocking TD spares and are gradually putting them online.
I can also make up DEX410 Bearing Kits.
www.radio-racers.co.uk
Shaun