260 cm of cable(8′6″)
| Cable | 260 cm · 8′6″ |
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| Total, handle tip to tip | 290 cm · 9′6″ |
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| Gap above your head | 15–30 cm |
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| Standing on it, handles reach | about your armpits |
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Start long: leave about 270 cm of cable, skip a session, then trim towards 260 cm a couple of centimetres at a time. You can always cut more, never less.
A starting point, not a guarantee of fit: it is a rule of thumb, and ropes and charts vary. Start long and trim.