Mielestäni lukee ihan selvästi, että 14 päivää aikaa ilmoittaa siitä,.että haluaa peruuttaa. Alkaa siitä kun saa tuotteen.
You are entitled to cancel your offer to conclude a contract within 14 days, with no necessity to state reasons. The period of 14 days starts with the handing over of the goods to you or a third person you appointed, except the carrier.
In order to cancel your offer to conclude a contract, you need to declare clearly in writing the wish to cancel. A clear declaration can be done by conventional mail, fax or e-mail.
https://www.bike24.com/terms.html