This competition has now closed.

Okay guys, this is the big one. Over the past month we've been giving you the chance to win a bespoke bike courtesy of Nike and Collective Bikes.

But this week it's a bit different. We're giving one lucky Instagram follower the chance to win their own custom C100 Mountain Bike designed by themselves- mega!

Ryan Taylor has got the lowdown for you.

Sound good to you? We thought so. To enter the competition it's easy. 

Download the blank bike design from here. You can design it however you want- the crazier the better as remember you could win your dream bike.

Use Photoshop, InDesign or keep it classic with paper and pen and upload your final design to Instagram making sure you tag @Footasylum and @NikeLondon with #downtodesign.

The competition will close at 7pm on Sunday 5th July so make sure you're not too late!