TomTom Runner 3 Manuel D'utilisation page 11

1. Slide the handlebar strap into the hook at the back of the watch holder. Choose the right length
for the size of your handlebars.
Tip: The strap has two holes so that it fits a range of different sizes of handlebars from 22 mm
to 32 mm. Select the hole that fits your handlebars best.
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