Arc ST Bindings
Free shipping over $100. Free return shipping except oversized items.
Pickup available at 415 North Lake Boulevard
Usually ready in 24 hours
Arc ST Bindings
Black / M
415 North Lake Boulevard
415 North Lake Boulevard
Tahoe City CA 96145
United States
Need expedited shipping? Call us to request expedited shipping before purchasing.
Shipping & Returns
- Items ship in 3 days or less.
- We do not ship anywhere outside of the contiguous US.
- 10 day return policy. Free return shipping.
- Items must be unused, and in their original packaging with tags to be eligible for return or exchange.
- There are no returns on sale items.
Click here for our Shipping and Return Policies
- Best Use Freeride
- Flex Soft
- Weight(Pair) 1.38 lbs / 628 grams (M)
- System Spark R&D
Features
Lightweight & Surfy
Spark's industry-leading splitboard binding excels in the trees and powder, but is tough enough to handle more complex all-mountain conditions.
Cutout baseplate design, medium flex Asym Rip 'N' Flip Highbacks, and a smaller ankle strap with a flex window combine to save valuable grams and deliver a surfy ride down. All Arc ST Bindings incorporate Spark's industry-leading Tesla T1 technology. Smooth Touring (ST) Tech is featured on ST Brackets and ST Whammy Bars. These components utilize a proprietary thermoplastic blend that is molded over the metal part reducing friction, increasing durability, and improving touring efficiency.
- Asym Rip 'N' Flip Highbacks — Arc ST Asym Rip ‘N’ Flip Highback has a moderate amount of glass fiber fill for medium flex and a surfy feel. The bindings feature individual left and right highbacks for improved ergonomics, comfort, and control. The upper section of the highback is flatter giving riders excellent lateral mobility. All Rip ‘N’ Flip Highbacks incorporate a tool-free forward lean adjuster (FLAD) that easily toggles between tour and ride mode.
- ST Touring Brackets — ST Touring Brackets incorporate the best features of aluminum and thermoplastics. Spark overmolds their custom plastic blend over and through the holes in the aluminum base, forming bushings that last four times longer than their previous brass version.
- ST Whammy Bars — The ST Whammy Bar climbing wire is built right into the baseplate. Overmolded plastic where the bar contacts the baseplate allows for super-smooth climbing wire position changes in the steeps. You can switch easily from stowed, to low (12°), to high (18°), and back again while touring.
- Pillow Line Straps — Pillow Line Straps are lightweight, durable, comfortable, waterproof, one-piece molded construction, and made 100% in-house. Arc ST Ankle Straps are smaller around the boot than the Surge ST and feature a flex window for max agility while maintaining support. Toe straps are designed to be used as a toe cap, but also fit nicely as a traditional strap across the top of the boot.
- Puck Compatibility — Slide them on and snap the ramp down. Snap the ramp up and slide them off. The most functional way to attach your binding to your board in ride mode. Spark R&D bindings are designed to work with all puck-compatible splitboards.
- Tesla Snap Ramp — T1 System bindings slide sideways into the offset touring bracket and are locked into place with our snap ramp. No pins, no cables, no fiddle factor. Integrated Ibex crampon mounting claws on touring brackets make for quick and easy installation and removal.
- T1 Heel Rest — The T1 Heel Rest catches the climbing wire in the 12° and 18° positions and is specifically designed to hold the T1 Step Locker in place.
- Buckels & Plastics — Ladders and adjusters are produced in-house with unique thermoplastics that maintain flex over a wide temperature range, performing well on spring tours as well as sub-zero suffer fests. All straps incorporate Burton's time-tested buckles.
In the Box: Splitboard bindings, ST Brackets, T1 Heel Rests, mounting screws, and Spark Pocket Tool.
What else do I need? A set of Spark Flat Pucks or Spark Canted Pucks.
Sizing: Unisex sizing means no men's or women's specific bindings, just splitboard bindings for splitboarders.
| Sizing | US Men's | US Women's | Euro | Mondo |
| XS | <7 | <8 | <39 | <24.5 |
| S | 7-8.5 | 8-9.5 | 39-41 | 24.5-26 |
| M | 8.5-10.5 | 9.5-11.5 | 41-43 | 26-27.5 |
| L | 10.5+ | 11.5+ | 43+ | 27.5+ |
Technical Specs
| Best Use | Freeride |
|---|---|
| Flex | Soft |
| Weight(Pair) | 1.38 lbs / 628 grams (M) |
| Boot Compatibility | Softboots |
| System | Spark R&D |
| Warranty | 5 Years |
Shipping & Returns
We offer free shipping on orders over $100. Most orders ship within 3 days or less.
Returns are accepted within 10 days of purchase, or within 10 days of receiving your online order. Items must be unused, with original tags attached and in original packaging.
Sale items, climbing and mountaineering gear, avalanche safety equipment, and demo gear are final sale and not eligible for return.
Need help? Email info@alpenglowsports.com or call (530) 583-6917.
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AI FAQs
AI generated FAQs about the Arc ST Bindings
How do I know what size binding will work with my board?
Choose the binding size by your boot size: M fits US men's 8.5–10.5 / women's 9.5–11.5 / EU 41–43 / Mondo 26–27.5, while L fits US men's 10.5+ / women's 11.5+ / EU 43+ / Mondo 27.5+. Your splitboard must be puck-compatible for the Tesla T1 mounting system.
Will these bindings fit my boots, or do I need a specific boot type?
These bindings are built for softboots. You also need a puck-compatible splitboard with Spark Flat Pucks or Spark Canted Pucks to ride them.
How do I know if these bindings are right for my riding style and the terrain I ride?
The Arc ST is a lightweight, surfy freeride splitboard binding for trees, powder, and all-mountain conditions. Its medium-flex highbacks and cutout baseplate prioritize agility while remaining tough enough for more complex all-mountain terrain.
How much flexibility do these bindings allow, and does that affect how the board responds?
The Arc ST uses medium-flex Asym Rip ’N’ Flip Highbacks with a moderate glass-fiber fill and a flatter upper section. This design gives you a surfy feel and excellent lateral mobility while supporting comfort and control.
What tools do I need to set up and adjust these bindings?
The package includes a Spark Pocket Tool and mounting screws for setup. You will need a separate set of Spark Flat Pucks or Spark Canted Pucks to mount the bindings in ride mode.
Can I swap these bindings between different boards easily?
The Tesla T1 puck-compatible system lets you slide the bindings onto compatible pucks and snap the ramp down to lock them in ride mode. You can release the ramp and slide them off, making transfers straightforward between puck-compatible splitboards.
How long do these bindings typically last with regular riding?
The Arc ST Bindings carry a five-year warranty. Their ST Touring Bracket bushings are designed to last four times longer than Spark’s previous brass version.
Will the straps start to wear out or lose their grip over time?
The Pillow Line Straps use lightweight, durable, waterproof, one-piece molded construction. The straps use Burton buckles, and their in-house thermoplastic ladders and adjusters are made to maintain flex across a wide temperature range.
How do these bindings hold up in wet, icy, and cold conditions?
Waterproof Pillow Line Straps and thermoplastic ladders and adjusters are built for changing winter conditions. The plastics maintain flex across a wide temperature range, including spring tours and sub-zero conditions.
Do I need special equipment or adapters to use these bindings with my current setup?
You need a separate set of Spark Flat Pucks or Spark Canted Pucks to use these bindings in ride mode. The Tesla T1 system attaches by sliding the binding onto the puck interface and securing its snap ramp.