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I've played with bumpers with a hacked TLT 5 boot on a bench. I don't think the toe extension on an AT or NTN toe has enough lever arm for the bumper concept to work. My next project is to fabricate an underfoot toe lock down similar the lock down a 7TM tour used the attaches just in front of the flex zone to mimic a 3 pin like feel. Then I would just add an AT heel piece if I needed more control.bobbytooslow wrote: ↑Tue Mar 03, 2020 7:22 pmHa, I've been digging into this stuff for quite a while. We're kind of meeting in the same place but from different directions. I train & race skimo style, but can't give up the tele turn. I'm trying to build something that's light, durable, and fast to transition. I currently use a DIY TTS that weighs ~110g on the up, and though I can install the cable without having to click out, I'd still prefer something that stays on the ski full-time. A spring-loaded toe bumper might be the answer, we'll see.Johnny wrote: ↑Tue Mar 03, 2020 6:49 pmSWEET JESUS Bobby... You have been digging very deep since you crossposted my post on EYT... Wow, this Rotte prototype is just awesome... Spring loaded, but it seems like there is two attachment points? Some kind of crossover between the Salomon pilot and NTN duckbutts!?! Wow, wow and WOW!
So that was 2001, years before NTN but really, not so long ago... Super interesting... Maybe Rotte are wiser than I think... Probably that the XCD/leather demand was at its lowest back then... And the idea evolved into NTN... Woaaah, this thing looks very light, and pretty much what I dream about... Even more interesting, look at the picture below... The boot has EYELETS! Definitely not intended for 4 buckles plastic boots...
I'll never give up my plastic boots, though. I tried "skimo-ing" with Rossignol BC-X12's & Voile HD's, and there's just no comparison, at least for my needs. But, if modified leathers meet other folks' needs, I'm stoked and happy to help. If you need components 3D printed for your "projects," let me know.
Yes, I agree. You'd need to build up a big tall square-ish front on the boot for it to get the right leverage. It's on my list of things to do.