as mentioned on Skype we have problem with our 14" blox.We feel you may have already noticed this problem but have not been in touch with us.We have checked some stock here and the problem lies with the bike from an older PO.When the cranks are turned they rub on the chainguard causing the decal/chainguard to be damaged I haveexplain and you will see on the newer bikes you have cut the chainguard so it goes around some