The 'narrow-wide' chainring is a drive gear for a bicycle that features an alternating tooth profile. This is to say, one tooth is wide, and the next is narrow just like a bicycle chain. Today we'll watch slow motion footage demonstrating why these gears are so effective at keeping your chain on. Eric https://www.youtube.com/channel/UCp6ZQ6TtOcqcANny0t8Fufw mentioned on our Substack how Ghel patented a very similar gear back in 1978 for heavy machinery. That patent has since expired, and is owned by Manitou. https://patents.google.com/patent/US4174642A/en Free yourself from the algorithm and join us on Substack! 🚲 http://bermpeak.substack.com/ Videos 2 weeks early • Exclusive articles • Discussions • You’re in control! The Berm Peak Ranger Station on Airbnb 🏡 https://www.airbnb.com/rooms/50301108?source_impression_id=p3_1667664462_wISk7170fpRY316K Berm Peak Hoodies, Beanies, Jerseys, Shirts https://cognativemtb.com/collections/seths-bike-hacks-collection Want us to review your unique mountain bike or outdoor product? https://www.sethsbikehacks.com/product-review/ Check out our main channel null Follow me on Instagram https://instagram.com/sethsbikehacks Berm Peak Merch https://cognativemtb.com/collections/seths-bike-hacks-collection Music in this video is from http://share.epidemicsound.com/trQSg