Mongoose ATB MTB All Terrain center of head tube to center of seat post is 22.5. Center of top tube to. Center of bottom. Bracket is 21. As you can see it needs to be restored. You dont see many red o es though. It seems to be chrome underneath paint from the look of the chips in the paint. Surprisingly theres no dents other then alittle flat spot where the kick stand goes. Bike was sitting behind a shed for years so cables and brakes are locked upect and seat post is stuck in frame . Ididnt try to really remove it. I usually soak them with wd40 for a few days but it may need heat. Also has numbers scratched in a few spots as pictured. This would make an awsome restoration for the winter strip to chrome or repaint . Unsure about stem weather its stuck or not havnt tried ti remove yet. Bike is as is for parts or fix3. Ask all questions before bidding all PROCEEDS go to my divorce FUNDS thanks. No shipping to Alaska Puerto Rico and Hawaii