Promax SQ-1 Square Taper Crank Arms Blue Size:145mm then passed through aligned vent

then passed through aligned vent channels in the EPS and exits out multiple rear exhaust vents

through hardened and tempered for long life

Skin walls are employed to reduce drag and further reduce weight

The F-16 line is entry level on price but overperforms every step of the way

Promax SQ-1 Square Taper Crank Arms Blue Size:145mm then passed through aligned ventThe SQ 1 cranks arms have a traditional, five arm, 110 bolt pattern spider and come in a variety of lengths to fit most riders or riding situations, from the 5 and under BMX racer to the 6 foot tall fixie riding hipster. 110mm BCD Compatible with any JIS square taper bottom bracket Cold forged from 6061 T6 aluminum for strength, low weight and durability and feature beautiful anodized finishes Bottom bracket sold separately Chainline with 113 BB: 42.