Series 30 Builder Bells
4130 Chromoly

Our IFS Series 30 Builder Bells are the perfect platform for fabricating the best off-road upright. Manufactured in 1 piece out of billet (yes, billet) 4130 domestic grade chromoly steel, they offer not only flexibility in upright design but the ability to fully heat treat your uprights post-welding. It's one of the only builder bells on the market that allows for post heat treating, and with the direction desert and rock racing is taking, it is highly recommended that you heat treat your uprights.

The IFS 30 Series Builder Bells are sold as a pair, and accommodate Spidertrax 30 Series Stub Shafts & Spidertrax Pro Series Unit Bearings (Standard & Compact). Hardware to assemble your Pro Series Unit Bearings is included with our builder bells.