I have a hilly 1/2 IM coming up and have noticed that my training/ racing/ general purpose rear wheel (Sun Rims) has hairline cracks on the rim where the spokes join it. Most are small (1/4") and not every spoke hole has them, but about half do. How imminent do you think the danger is here? I guess its new wheel time but was hoping to make it through the season. If its serious, can anyone recommend a fairly lightweight training/ racing/ general purpose wheel? And is it best just to get a new rim and use the old hub or just get the whole deal?
Thanks for helping out
Joe