The Ski Trab Race Adjustable Binding features the same toe piece as the TR Race but has a modified heel piece that slides forward and back with a socket wrench. The adjustable heel piece features the same simple flap/riser that is used to quickly switch between uphill touring and downhill skiing modes. However the binding adjusts to different boot sizes so you can use the existing mount when you buy new boots. This also increases the resale value of your setup since more feet can fit. This handy feature adds about 30 bucks and 41 grams (1.4 ounces) to the binding.

• Toe pieces made with Ergal hardened steel have slotted (and recently strengthened) pivots to help clean boot holes during binding entry.
• 95 gram (3.4 ounce) heel pieces also made with Ergal are adjustable forward and backward to accommodate a range of roughly 3 full boot sizes.
• Easy to use flaps cover the heel pins when uphilling and flip up out of the way when you're ready to lock down and ski.
• Switch between fully locked out and unlocked (ski) positions of the toe jaws with a surprisingly smooth toe lever.
• Adjustment plates act as a heel platform to prevent negative ramp angle when skinning the flats (heels rotate 360°).
• Comes with optional crampon receptor (4g) that accepts any standard tech binding crampon.