The tubular chromoly X-Drive offers the ultimate in bombproof strength. It’s strength doesn’t just come from its arms, The Ultimax BMX bottom bracket (included) features 4 cartridge bearings and a solid 19mm oversized cromoly spindle. Along with the super thick, super strong CNC machined Bash ring and 22t, 32t chainrings.
Tubular 4130 Welded Cromoly crankarms
7075/T6 Spider, 4-Arm, 104/64mm bolt circle
Precision CNC machined 6061/T6 5mm Bash Ring
7075/T6 Stamped 32 tooth middle ring, pinned and ramped
Steel 22 Tooth inner chainring
Chromoly chainring bolts
Spindle is 19mm with 48 tooth spline
Four Sealed Cartridge Bearings
Buy FSA X-Drive Xtreme Cro-Mo Bash Chainset from Chain Reaction Cycles, the World’s Largest Online Bike Store.