Based on frame geometry and build specs.
A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.
Turbo Levo SL Comp Carbon
Turbo Levo SL Pro Carbon
S-Works Turbo Levo SL Carbon
S-Works Turbo Levo SL LTD
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.