I’m looking for a comparison tool/site to compare some frames/bikes.
Anyone got a link to an easy to use online tool?

The only one I know of

thanks

Another one here that shows an overlay of stem height/length differences

The only one I know of

Link not working for me?

Its a total minefield as bike companies often dont compare like for like, with different length forks to what are specified or not telling you if they are using sagged suspension. I use an excel tool and compare each bike manually, adjusting as required to understand what the real differences are.

I’ve been doing this recently, it’s a disaster as some take stack to top of headset, some state stack “assuming 15mm spacer” and some show diagrams with stack taken to the top of the stem clamp (which therefore also includes some arbitrary number of spacers, not stated).

Reach seems a little more standard, although even then one manufacturer states “assuming 100mm stem” (although at least they state it, and subtracting 100mm from the figure wasn’t too much of a struggle…).

@granny_ring try https://geometrygeeks.bike/

@13thfloormonk yeah I bet it is a mare. Given stack and reach both use a fixed (the same fixed) point to measure to you wonder why so many bike companies get it wrong… or is it deliberate?

http://www.bikegeo.net/

Allows you to compare different bikes easily by putting in your own figures. Also shows that having bars in the same position from the floor makes more sense of manufacturers reach figures and bikes with big differences on charts end up being very similar when you take account of your normal bar height set up.

Given stack and reach both use a fixed (the same fixed) point to measure to you wonder why so many bike companies get it wrong… or is it deliberate?

Some are just outright lies and once you plug all the supplied numbers in to a spreadsheet, nothing lines up.

Yeah a good example is the new Rocky Mountain Slayer – the reach numbers are around the same as my Reign – however its a fair bit longer than it appears to be on paper because of the massively long headtube.