Why We Love It
More time in the aero position means a faster bike leg, and that all comes down to how your arms are supported. The Signature Arm Cups are built from TriRig’s lightweight ThermoPlast™ material and finished with a textured neoprene pad that strikes the right balance of grip and cushion, so you can hold your position longer without your arms going numb or sliding around.
Talk Nerdy To Me
TriRig builds the Signature line from its own ThermoPlast material rather than carbon fibre, landing at a claimed 365 grams per set while still handling the load of holding your upper body through a full aero position. The Open Back shape keeps things simple and comfortable without locking you into one fixed angle, and if you later want extra support wrapped behind the elbow, the Closed Back version in the same Signature line covers that without changing the core fit. It bolts in via two fore-and-aft points into threaded bosses using the included M5 and M6 bolts, and fits most aerobars on the market including TriRig's own Alpha One; optional Wingspan Extenders are available for a non-standard hole pattern, though these cups aren't recommended for a Trek Speed Concept Gen 3 from 2022 onward.
Fast Facts
- ThermoPlast material, not carbon fibre
- 365g per set
- Textured neoprene pad, extended adjustment range
- Mounts via two fore-aft bolts, M5/M6 hardware included
- Fits most aerobars including TriRig Alpha One
- Not recommended for Trek Speed Concept Gen 3 (2022+)
🇦🇺 Australia
- FREE shipping on orders $129+ AUD (after discount codes are applied)
- Orders under $129: Shipping calculated at checkout
🇳🇿 New Zealand
- FREE shipping on orders $150+ NZD (after discount codes are applied)
- Orders under $150: Shipping calculated at checkout
- Customers are responsible for covering customs charges
🌍 International
- Shipping calculated at checkout
- Customers are responsible for covering customs charges
⚡ Express Shipping
- Available for all destinations
- Calculated at checkout
- Customers are responsible for covering customs charges for international orders
Same Day Dispatch: Orders placed before 12 PM (AEST/AEDT, Melbourne AU time) on weekdays are usually dispatched same day*. Orders placed after this cutoff will head out the next business day.*This is a guideline, not a guarantee. While we do our best to ship orders out on time, dispatch may be delayed during peak periods, sales events, or due to unexpected courier or warehouse issues.
Delivery Times - Australia: Standard shipping takes 3-9 business days. Need it faster? Choose Express at checkout.
Please Note: Delivery times may vary due to public holidays and other factors beyond our control. Check current shipping estimates here.
30-Day Policy
Easy returns and exchanges within 30 days of delivery (excluding items listed below).
Tech Item Exception:
Watches, FORM goggles, headphones, heart rate monitors, recovery boots and similar tech items can only be returned if they are in their original packaging with the seal intact (unopened and unconnected). Unless faulty or covered by warranty.
Personal Care / Hygiene Items:
For hygiene and safety reasons, change of mind returns and exchanges are not accepted for personal care/hygiene items, including socks, underwear and swimwear (even if they are not marked as Final Sale). Unless faulty or covered by warranty.
Final Sale Items
Items marked as FINAL SALE cannot be returned or exchanged unless faulty or covered by warranty.
Gift Purchases
Buying a gift? Contact us at purchase to request an extended return period.
Need Help?
Full return policy details and process here.
Request a return here.
Same day dispatch before 12pm AEDT/AEST*
Aussie owned and operated
Athlete support & in-house dietitian
Free Shipping for orders over A$129*