Where to find aluminum sprockets?

[Billfred]

Originally Posted by Whateveryousay

Thanks, we only needs to swap 6 sprockets out, but we are currently using the McMaster stainless stell black finish sprockets, they are HEAVY, so yeah, we can save about 2 pounds by swaping all of them out, we are only 3 pounds overweight at this points. We did place an order on those plastic tanks and new compressor to save weight, but we would like to be a bit safer, you know just in case

I take it your robot uses live axles on drive? Dead axles would allow you to mount the sprocket to the wheel directly, saving more weight and allowing many of the existing aluminum sprocket options...but I'm assuming you've made your choice and are running with it in this regard.

Going with the AndyMark sprockets and hubs together is probably the easiest solution, though you may also be able to lighten your existing ones with a little swiss cheese in a desperation move. (Do that carefully, of course.)

You could also run your compressor off-board, which could drop a couple of pounds easily if you can run your matches with your tanks pre-charged.