https://members.theihe.org/forums/posts.aspx?group=245536&topic=1718790 Sun, 7 Jun 2026 11:53:52 GMT Thu, 8 Dec 2022 08:28:48 GMT Copyright © 2022 Institute of Highway Engineers https://members.theihe.org/forums/posts.aspx?group=245536&topic=1718790 https://members.theihe.org/forums/posts.aspx?group=245536&topic=1718790 Thu, 8 Dec 2022 09:28:16 GMT https://members.theihe.org/forums/posts.aspx?group=245536&topic=1718791 https://members.theihe.org/forums/posts.aspx?group=245536&topic=1718791 23rd February 2022

In South Wales, the bow tie loops used to work very well. I’m not sure how they would fare with carbon fibre frames (and ally for that matter). As you say, there is still steel even on carbon fibre bikes, but I wouldn’t know if that is enough for a loop to detect on highest sensitivity]]> Thu, 8 Dec 2022 09:28:48 GMT