Three speeds · one fixed jump 0.00 s3.31 s
About this technique example
A stylised 144 cm rider demonstrating an idealised movement pattern. This is an illustration, not a physics prediction. Compare 3 speeds shows the same fixed jump and proper-technique rider at three selectable approach speeds. They start from the same place on one elapsed-time clock; take-offs are not aligned or slowed to match each other. Each holds at its own first contact while the other riders continue. Camera angle, zoom, rider visibility and pedal colours are shared. Rider detail and Follow each bike centre each rider separately; Landing zone and Whole jump use the same world framing in every panel. Auto pick outcomes searches the available speed range on the current jump; Example jump restores the default layout that shows all three outcomes. Compare mistakes is a separate two-view mode. The side-by-side counterexamples share a clock. In fixed-landing mode each stops at its own first tyre contact. Early pulling illustrates interrupted leg drive and extra pitch correction; the stiff landing illustrates reduced limb bend and a small head jolt. Jump height measures the take-off lip and scales the ramp length. Approach speed changes travel speed, distinct from Playback slow motion. The rider’s push, flight preparation and landing bend follow the new phase timings. Matched mode moves the landing with the illustrative flight. Keep landing fixed locks its current position and shape, including when take-off height changes. Fixed mode holds a calibrated vertical launch contribution constant while speed changes the launch velocity; it follows a gravity-driven arc and stops at first tyre contact, without lifting the arc over obstacles. Pitch and rider posture remain authored. The green strip marks the landing slope. Short means contact before the slope or at its crest; overshoot means contact beyond its end. On-slope contact does not certify a safe landing. Air drag, tyre deformation, rider forces, crashes and post-impact motion are not modelled; this cannot establish a safe riding speed. These are authored tendencies, not predicted crashes or measured impact forces. Timing varies with the jump and rider. Build skills on small, rollable tabletops with a qualified coach.
Trajectory basis: NASA ballistic equations. Coaching references: Dirt School / Andy Barlow · REI jumping guide · Bike On foundations.
Fan-made model of the Giant STP 24. Not an official Giant asset; Giant, STP, Crest, Kenda and MicroSHIFT marks belong to their owners.
Dropper lowering simulates rider weight. Suspension forces and rebound are illustrative.
Reference