I love slow motion for jumps and rough sections, but 240 fps footage from an action camera often looks noticeably worse than my normal-speed clips, especially in the woods.
Is 240 fps something you reserve for bright daylight? Would 120 fps usually be the better compromise for mountain biking?
Cycling & GPS workflows
High frame rate needs short exposure intervals, so the camera has much less light available for each frame. In bright sun that may be fine. Under trees the camera has to compensate, and noise/detail loss becomes much more obvious.
For most biking I would choose 60 or 120 fps unless I know the shot genuinely needs extreme slow motion. 240 fps is great for a short, fast event, not automatically better for every action sequence.
Color & tone mapping
Another issue is shutter speed. If you shoot very high fps with a very fast shutter, every frame becomes extremely crisp. When slowed down that can look great, but at normal speed it may feel harsh or staccato compared with the rest of the edit.
I treat high-fps modes as special-purpose shots rather than a default recording mode.
Snow sports workflows
From the editing side, 120 fps is also easier to integrate. You can slow 120 to 30 fps for a clean 4x effect, or use a less extreme speed change and keep more of the action's energy.
VSDC supports high-frame-rate GoPro footage and speed changes, so the limiting factor here is mainly capture quality rather than whether the editor can slow it down. Do a short test in the actual forest/light conditions you ride in; action-camera demos filmed in direct sun can be misleading.
Action Video Lab Editorial Team
I tested the same jump at 120 and 240 late this afternoon. 240 gives me more dramatic slow motion, but the trees turn into mush and the rider has more noise. 120 is much cleaner.
I will keep 240 for bright open sections and use 120 as the normal slow-motion preset.
Cycling & GPS workflows