I need an explanation.... Can someone explain a "Pin" type axle? Needle, nail, straight, bearing and headless I am good with but I don't see how a "Pin" type axle is large enough to have a .084 diameter.
Also, who sells custom wheels that are 7.5mm wide and weighs 2 grams? Better yet, how much would those cost? My guess is I will be sticking to the big axles and wheels until I can get a lathe.
I need an explanation.... Can someone explain a "Pin" type axle? Needle, nail, straight, bearing and headless I am good with but I don't see how a "Pin" type axle is large enough to have a .084 diameter.
Also, who sells custom wheels that are 7.5mm wide and weighs 2 grams? Better yet, how much would those cost? My guess is I will be sticking to the big axles and wheels until I can get a lathe.
"PIN" is just that a "PIN" it says in the rules...........Axles (open) when it says open, that means it can be any diameter.
"NEEDLE" is very small diameter shaft used for an axle.....It could be music wire, a gauge pin, a drill blank. They are fast, but the downside is they are hard to proxy race due to breakage. You have a 2 gram wheel sitting on that tiny shaft and when the USPS throws the box it's not the throwing the box that breaks the axle it's the sudden stop that snaps them. They tend to shear off at the end of the wheel closest to the body.
"NAIL" is your standard BSA type axle.
"STRAIGHT" axle is usually referring to the rear axle and needs some sort of retainer to hold on the wheel.
"BEARING" Is what is run in Super Pro Mod .....usually it's a .156 diameter flanged ball bearing with an .047 inside diameter that mounts on an .047 diameter shaft (axle)
"HEADLESS" Means no head. It needs some type of retainer to take the place of the axle head to hold the wheel in place.
I make custom 2 gram wheels.............however I am NOT selling any wheels. I cannot in good conscience sell wheels with bushings and garauntee they will be fast. It only takes a matter of .0005 too little clearance and they won't perform as expected. I have recently found that out from a customer. You cannot imagine the time and effort that has to take place for those wheels to be fast. I was selling them for $15 a piece, but no more.
I know this is a lengthy post and I hope it helps to answer your questions 3n1..............
Last Edit: Dec 1, 2014 18:24:51 GMT -5 by BSB Racing
I missed the "Open" part on a few of the classes but for Pro Pure Stock for example, it does not say open, but we can use Nail, Pin, Headless, or Straight axles. So long as they are .084 in diameter. This is what threw me for a loop.
What I understood is that a Pin axle would be similar in size to bearing axles (.047 ish) but not as small as needle axles. I am confused as to the diameter of a Pin axle, I think.