Full Speed Ahead Vero Pro 1x Crankset The Full Speed Ahead Vero Pro 1x crankset offers true value and performance. It is built to inspire rider confidence and require very little maintenance. Features Solid forged aluminum crank arm Square JIS spindle interface (JIS bottom bracket sold separately)Chainring features Megatooth technology for exceptional chain retention Polished anodized black with laser graphics*110. 5mm JIS bottom bracket to achieve a 44mm chainline | Fsa | Vero Pro 1X Square Taper Crankset 42T, 170Mm | Aluminum