Adjustability of tech bindings for different boots/BSLs.

[Rainmaker]

How adjustable are tech bindings to different boots? Specifically I'm wondering about G3 Ion (12) bindings.

As far as I know, in the past, the answer was not very (if really at all). But I'm wondering with newer bindings and forward pressure and such, is there some adjustability?

I want to buy a set of skis with bindings set for a 307mm BSL, and I have a 294mm BSL.... and am hoping I don't have to re-drill? (But I'm thinking I probably do).

[1000-oaks]

It would be close, but you could probably make that happen with Vipec/Tecton if you mount the heel centered between those two BSL's. Test on boards to make sure. I made it work with 305 Cochise / 294 Alien RS.

[caulfield]

If 307mm was the original BSL and heel piece was mounted dead center of its range, you probably need to re-mount. Ion fore/aft adjustment is reported as 22mm on skimo, 30 on knut's template. I mounted a pair for a buddy last night and would lean towards the 22, but I didn't actually measure.

[stuntmanbo]

Ion have a 22mm adjustment range.
So if there is a mount for the Ion for 307mm in the middle of the range, shortest boot you could fit without redrill is 296mm. Maybe 294mm would work, maybe not. Not a big deal to move the toe or heel 1,5cm though.

[toast2266]

Historically, many of the tech bindings had a larger adjustment range than a lot of alpine bindings.

[mntlion]

if it DOESN'T work maybe find a kingpin demo?

[NorCalNomad]

It would be close, but you could probably make that happen with Vipec/Tecton if you mount the heel centered between those two BSL's. Test on boards to make sure. I made it work with 305 Cochise / 294 Alien RS.

Oh you can for sure make that work on vipec/ tecton. Mine are drilled so both my 298bsl and 312 bsl boots work, and I could even go a few MM's on each end of that.

I think the factory spec is either 15mm or 20mm of adjustability.

[skiitsbetter]

dependent on your boots and the boots for the previous mount as well. Scarpas have the toe inserts further back, effectively shortening the BSL for the mount. Whereas on a lightweight boot with little or no toe welt, the toe inserts will be further forward relative to the overall BSL length.

[jackattack]

Solly mtn tech or Atomic Backland has 30mm adjustment range iirc

[madriverfreeride]

Dyna rad 2 style heels have 45mm of adjustment according to the rep.