matching set of front and rear hubs36hRHD or LHDmade in the USAtwo precision 6903 sealed bearings in each hubfour precision 6802 sealed bearings in rear hub driverfour individual pawl/spring engagement mechanism with CNC machined driver- - - - -axle, bolt / nut, driver configurations below - please choose appropriatelyall female axles require axle bolts, male rear axles require axle nuts- - - - -AL (aluminum) and CROMO (cromoly) female axles accept 3/8" x 16 tpi bolts with the following options:a) cromo Socket bolts with polished AL Volcano washers *b) titanium Socket bolts with polished AL Volcano washers - add $35 *c) cromo Button bolts (full 3/8" or 3/8" with integrated 14mm adapter)d) cromo Button PEG bolts (3/8" with integrated 10mm long 14mm adapter for peg / dropout)e) titanium Button bolts (full 3/8" or 3/8" with integrated 14mm adapter) - add $35f) cromo Hex bolts (full 3/8" or 3/8" with integrated 14mm adapter)g) cromo Hex PEG bolts (3/8" with integrated 10mm long 14mm adapter for peg / dropout)- bolt chart available as you click through product images- all bolts accept 8mm Allen key - “Hex” bolts also accept 17mm wrench or socket- alloy or steel hub cone spacers* Volcano washers, they’ll be polished unless otherwise noted in “order comments”- please include any instructions in the “order comments” if you want an axle / bolt configuration not listed in the choices above (example: one Hex bolt and one Hex PEG bolt on a hub, etc.)- - - - -14mm male axle options:heat-treated GDH (gun-drilled hollow) cromo with alloy or cromo axle nutsheat-treated solid cromo with alloy or cromo axle nutstitanium GDH (gun-drilled hollow) with alloy or cromo axle nuts add $90- alloy or steel non-drive side cone spacer and steel jam nuts- - - - -driver options:cromo 1-pc driver: 9t, 10t, 11tcromo 2-pc driver + removable cog: 12t - 18ttitanium 1-pc driver (add $40): 9t, 10t, 11ttitanium 2-pc driver + removable cog (add $40): 12t - 18t