WHAT DOES GO KART RACING NEAR ME MEAN?

Freehub (Rear Wheel Only) – the part in a modern bicycle’s rear wheel hub that enables the wheel to spin freely when coasting, but engages the drivetrain when pedaling. The cassette slots on to the freehub entire body.Bottom Bracket Shell – the gap where the seat tube, down tube, and chainstays meet, into which the bottom bracket is mounted.