We purchased it from decathlon shop and tried to install it from home. instructions on the package was easy but as a first glitch screw bolts were not fit properly in the screws. We managed it with great difficulty only to realize that the mudguard positions looks odd once we plug it in to the slot. we tried all the permutation and combinations which was not as per the pictorial representation. Nobody liked the design of the bike after installing it and finally we removed it and the aesthetic look of the coptrooper bike is better without mudguard.
looks like its not suitable for cop trooper 16"
These are specifically made for 16" wheels (not 16-18 or 20) so you'd think they would follow the curve of the wheels. No. they have a whale tail design which is ok on the back but on the front it will clip the riders toes when turning. That's the last thing you need on a child's bike. If you bend the front bracket to make the mudguard follow the front's curve the front end comes up and interferes with the brake mechanism!
My solution was to saw off the front end so it didn't reach the brakes.
Summary - back wheel Ok. Front wheel terrible.
Thank you for your feedback regarding the front mudguard design. I will forward it on to the product designer.
Peter Lazarus UK Cycling Market Manager DECATHLON