Unlikely, it’s got that springy seat tube, so loads of FE and special tooling etc.
People always forget that making a one off isn’t very expensive (single use molds can be made of a range of things for example), especially when you have in-house production facilities like Trek do. The biggest issue is that you will never get a 29er to fit her and look normal and she’s got some odd quirks like the seat very far forwards so even on a smaller wheeled bike it’ll still look odd.
The downside of choice ‘most others’ can always be wrong
I think it is more a case of people (the average Freds) and the trails they ride changing so the bikes change to meet their *needs*/ required levels of compensation 🙂
Not XC, but on the long, low slack topic… Look back to Warner’s Giant back in Gawd knows when and the geometry is almost identical to the modern glory, 63 degree HTA, lower BB the works. There are some changes in that time like wider bars, better brakes and tyres but the requirements of fast people riding fast stuff hasn’t changed all that much.
XC bikes haven’t changed, but I doubt anyone would even look at an enduro bike with a comparable top tube length to an XC frame, they’r all at least 2″ longer.
XC bikes have changed quite considerably IMO. Same trend of longer, lower slacker in its own way. Compare even an F29 to an FSi and you have less stack, a cm more reach, more than 2cm longer front centre, slickly slacker HTA, over a cm off the chainstays… go back and compare them to a F26 and even factoring in the wheel size change (itself a big jump) and the geometry is pretty different again.
There’s usually ~1cm more reach on a comparable Endurbro vs XC bike (e.g. Nomad vs Highball). The difference isn’t as big as you think. Even within a company with fairly short reach XC bikes and reasonably long Endurbro bikes like Canyon the difference is 27mm (Exceed vs Strive Large example). The front centres are of course very different but it is way off to expect an XC frame to be 2 inches shorter than the bikes at the more gravity end of things.