Update from July 12, 2024: Thanks to your support, we’ve raised the $300 to cover the upcoming web hosting renewal. Many thanks to all who contributed! Original post: I launched this site in March 2021 in the era of pandemic lockdowns. I was recovering from injury and surgery and looking for a project that would […]
An Update on the Future of the Site Read More »
The Bike Geometry Calculator has had a bit of a refresh. Most noticeably, three new features have been added: The tire diameter calculator is now included as an option within the calculator for inconvenience instead of linking to a separate page. There is now an option to enter the defining rear dimension of the bike using
If you haven’t checked out Angles of Repose by Mike Ferrentino on NSMB.com, I’d suggest you take a look. He discussed some issues with increasingly steep seat angles, with his prime example being the 76° seat angle on the Kona Honzo causing him to have knee pain. While a seat tube angle of 76° does not sound at all extreme in 2022,
Seat Tube Angles On Sagged Hardtails Read More »
If you visited the site in the past few weeks, you would have seen an option to submit bikes to the data base for use in the geometry calculator. And you’ll notice now that none of those things are available. I realized pretty quickly that maintaining the quality of the data base was going to
The Data Base Is No More Read More »
If you’ve been here before, you’ll notice things look a little different on the site. I’ve been working on a major update and today, it has finally gone live. Here are a few things to keep an eye out for: Calculator Updates The two primary bike geometry calculators have been merged into one new one.
Things have changed a bit around here Read More »
If you’ve tried to enter the geometry of a mullet (mixed wheel) bike into the Bike Geometry Calculator, you may have struggled getting the calculated numbers like wheelbase or bottom bracket height to match the manufacturer’s published numbers. Mullet bikes make things complicated since the calculations I use to generate the bike silhouettes are sensitive
Tips for entering mullet bike geometry into the bike geometry calculator Read More »
The most common questions I get through the Contact page are related to Lee McCormack’s RAD measurement. RAD stands for “rider area distance” and it represents the 2D projected distance between the bottom bracket and the middle of the grips. It has become a common bike sizing method for many riders on modern bikes. The Bike
I added a new page to the site about a week ago. The Multiple Bike Geometry Comparison Tool allows comparison of frame geometry or fit, including cockpit measurements, of 2 to 4 bikes. I’ve used this tool to size up my last two bikes and to start the design process of my new custom Marino
New update to compare bike geometry and fit Read More »
UPDATE ON BIKE GEOMETRY CALCULATOR – NOW WITH BIKE OVERLAY FUNCTION AND MORE BIKE FIT PARAMETERS When I started this website, I knew my lack of programming skills would be the weak link. This was definitely going to be a brute force and ignorance approach to web design. I had always envisioned using the bike
I put this site together on a whim with the intent of providing what I viewed as a more functional bike geometry calculator. If my fellow bikers agree with me, it’ll find its niche audience. If not, well…at least I developed some new skills while recovering from surgery and itching to get back on my
Welcome to the MAD SCIENTIST MTB site Read More »