Geometry Analysis Tool

synBike
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North Vancouver, BC, CA
synBike
I thought I would share a little geo analysis tool I made as a side project while testing out some new web tools. It lets you see how all the little cockpit mods, wheel size changes, and fork swaps will impact your bike geo and fit. You can also create a few bikes to compare side by side.

Great for letting you know just how bad that mullet conversion plan of yours is.

synGeo
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Big Bird
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Big Bird 3/20/2021 9:10pm
3/20/2021 9:10pm
How dare you give freely to the world at large without a single thought as to your ego or bank account! How un American! Oh wait... you're Canadian... How Canadian!

Well done Sir!
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brash
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brash 3/20/2021 10:33pm
3/20/2021 10:33pm Edited Date/Time 3/20/2021 10:35pm
Very good, I'll play around with it.

I've been giving BikeGeo a thrashing for years - https://bikegeo.muha.cc/
synBike
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synBike 3/21/2021 7:22am
3/21/2021 7:22am
brash wrote:
Very good, I'll play around with it.

I've been giving BikeGeo a thrashing for years - https://bikegeo.muha.cc/
I remember seeing that when I looked around for something similar. Looking again is a good reminder to put some fork axle to crown reference lengths in the info hover text.
AndehM
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AndehM 3/29/2021 3:25pm
3/29/2021 3:25pm
synBike wrote:
I thought I would share a little geo analysis tool I made as a side project while testing out some new web tools. It lets you...
I thought I would share a little geo analysis tool I made as a side project while testing out some new web tools. It lets you see how all the little cockpit mods, wheel size changes, and fork swaps will impact your bike geo and fit. You can also create a few bikes to compare side by side.

Great for letting you know just how bad that mullet conversion plan of yours is.

synGeo
Nice work! It came out very close to what my actual measurements were on my mullet conversion (Guerrilla Gravity MegaTrail, with short lower headset cup and 160mm 29er fork). Biggest difference between the calculator and what I measured is my effective seat angle is 0.3 degrees steeper and my BB is 4mm lower for some reason, which seem contradictory.

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