Zone3 x Nopinz Speedbelt Aero Race Belt

WHO IT’S FOR 

The Speedbelt is for athletes racing half or full-distance events who want every marginal gain available on race day. If you’ve lost time fumbling with a buckle in transition, or felt drag from a number flapping on the bike, this fixes both problems with a single piece of kit. 

• Built for half and full-distance racing 
• Faster transitions: no buckle, no fumbling 
• Reduces drag on the bike 
• Keeps your race number flat and visible on the run 

WHERE IT SITS IN THE RANGE 

The Speedbelt sits within Zone3’s race-day accessories, developed in collaboration with Nopinz, specialists in aerodynamic race kit. It pairs directly with the Aspire and Vanquish-X wetsuits for athletes building a complete aero setup. 

KEY BENEFITS 

1. Measurable time saved on race day Wind tunnel and track testing confirm a saving of over 8 watts compared with a standard race belt and 13 watts over a flapping number. Across a full distance, that is around seven minutes. 

2. Faster transitions The Speedbelt is worn under your wetsuit from the start, so there is nothing to put on in T1. Moving the number pocket from rear to front takes seconds. Buckles are gone entirely. 

3. Secure, comfortable fit throughout Military-grade elastic holds the belt in place on the bike and the run without the pressure points or movement you get from a buckle system. 

4. Race number stays flat and visible The built-in pocket holds your number securely. Velcro tabs fix it to the rear on the bike and to the front on the run, flat, clearly displayed, never flapping. 

5. Durable across multiple seasons Built for repeated race use from sprint to full distance. Supplied with care instructions and guidance on Velcro tab placement. 

WHAT YOU’LL FEEL 

On the bike, the belt sits quietly. No shifting, no buckle digging in, nothing to think about. Moving through T2, the pocket swap takes moments and you’re running with your number already in place. The elastic holds consistently across both disciplines without the tightness that comes with a rigid buckle. After a few races, using anything else will feel like a step backwards.