Although limited in boot compatibility*, the TR-2 binding is not limited in features and performance. Ski Trab developed a unique heel design that uses downward pressure to maximize steering precision. It also lets you change from ski-mode to walk-mode without exiting the binding; just press down with your pole. At the toe, the wings can open to the side, enabling a twisting release like an alpine binding. These highlights combine to make the Trab TR-2 one of the more interesting ski-touring bindings on the market.
The TR-2 binding has two models with different release value ranges: 5-11 for most skiers and 7-13 for heavy/aggressive skiers with shorter feet. Brake widths available are 88mm, 104mm, and 115mm. The detailed feature list is lengthy:
Downward heel pressure gives a stable, locked-in feeling while skiing.
75mm wide base plates help transfer power to the edges of the ski.
Lateral release at the toe reduces twisting-release forces on your tibia.
Brakes are included and replaceable if you decide to change skis.
Lock lever at the toe offers a fully-locked uphill mode for climbing.
Ability to change modes without exiting the binding is a huge plus.
Fully adjustable release values can be dialed for your size and ability.
30mm BSL adjustment in the heel lets you adapt to different boots.
Two riser positions in addition to flat mode give skin track options.
Short binding plates enable a natural ski flex, improving ski control.
Flatter ramp angle than comparables which reduces quad strain.
Leash attachment point at the toe gives a backup ski-catch option.
Included crampon attachment lets you climb supportable crusts.
* Please note this binding is compatible only with La Sportiva Spectre 2.0, Spitfire 2.0, Sideral 2.0, Starlet 2.0, and SCARPA Spirit boots.
Hi, your specs say that the touring mode has a flat walk mode and 2 riser levels, but I think it actually just has a semi-flat walk mode with a single riser.
Hi James, The walk mode is very close to flat because the toe piece with pins sits up higher. With that being said, the boot will not lie flush against the ski like some other tech bindings. I've updated the specs to just read "2". Hope this helps, thanks for pointing this out.
Would it be possible to mate the Trab TR 2 toe piece with the ATK Haute Route heel piece to lighten up the rig/work around the boot compatibility issues while maintaining the alpine binding-like releasability?
Retains and releases just like an alpine binding. & tech tours. If not for the limited (but expanding) boot compatibility, I feel like this binding would become the tech 2.0 sensation. I use a Sideral 2.0 and plan to get a Spectre 2.0 at the end of this season. I love these bindings.
I guess the short answer is that it is more difficult to enter the toe. In certain situations it is probably easier than a dynafit, like deep snow on flatter terrain. Steep sidehills can be challenging as you have to push down on your ski to hold the jaws open. The heel is much easier to enter and exit in general and provides an alpine quality retention and elasticity.