recently i broke 7 spokes on my OCC stingray rear 20 x 4 1/4 rim, luckily i had a spare rim to replace it. bike shops tell me they can re-lace it but because how big the hub is they cant true it. also they tell me they can get spokes but for 75 bucks!!! ive found many places on the web that sell spokes under 20 bucks but i dont know what size to get. i would like to use a heavy duty spoke so this dont happen again,people here tell me 12 gauge is the way to go.thx for any advice or help.