As official nutrition suppliers to the Russian WorldTour team, SiS are giving away a bike worth in excess of £5,000.
To be in with a chance to win all you have to do is enter your details at this competition page.
The competition will close on 22 December, 2013. The lucky winner will be announced soon after. Entries are open to EU residents only.
The bike image used in this article is for illustration only, the final prize may may differ from the bike shown above. The condition of the bike is used and the size of the frame is subject to availability, although best endeavours will be made to ensure the winner receives an appropriately sized frame.