Chainreaction codes. Home › Forum › Bike Forum › Chainreaction codes. Viewing 1 post (of 1 total) Chainreaction codes. KucoMember How do you get them? I’ve ordered a fair bit off them and have never had a code sent. I’ve been sent invitations to the private sales but never a code. Posted 4 years ago Viewing 1 post (of 1 total) The topic ‘Chainreaction codes.’ is closed to new replies.