I learned that radial laced front wheels (track/not brake bikes) is a "stronger" lacing technique. This seems logical to me because not only is the spoke shorter, but you get to use the maximum width of your hub flanges without spokes crossing. This benefits the most when one is centered completely straight over the bike, which never happens (not even when going handless), but it also benefits in regards to the torque applied from the sides when the wheel is tilted. The downfall of a radial spoke pattern is spoke hole failure on the hubs themselves. As there is less material to actually hold the spoke (as opposed to 3x), the likelihood of fracturing a spoke hole is much higher. This rarely is a problem unless using cheaper hubs or one is considerably over the normal weight your wheel is designed to take (OLD of the hubs, flange height, spoke count, rim depth, etc.). Also, each time one crosses a spoke, the spoke itself is weakened even if the pattern is stronger for that wheel/type of riding. You rarely see 4x cross spokes patterns due to the likelihood of spoke failure at the curve due to the tension placed by the nearest crossed spoke.
Rear wheels are a different story and I have never seen a rear wheel with a radial pattern (at least on the drive side), due to hub windup. When you accelerate or brake (especially fixed gear), you need to have spokes angle both forward and backwards to compensate for the hub wanting to rotate first and the spokes needing to then turn the rims. If it was a rear radial, just imagine the picture of the hubs turning first and the straight spokes having to pull and then turn the rims. It would look like I vortex I imagine...
What I often see, especially with machine made wheels, is pairs of spokes using the same side outlet of the hub. I know there is a lot of schools of thoughts to this, but I've always learned that the pairing spokes should both be either on the inside or outside of the hub. I'm not claiming to be an expert here, so anyone have any opposing thoughts to this?
Last edited by ZeroG; 08-31-08 at 02:22 PM.