Parts
At Day Zero, we specialise in supplying high-quality bike parts and components for riders across New Zealand who expect performance, precision, and reliability from every part of their build. Our catalogue covers everything from drivetrains, cassettes, derailleurs, chains, and bottom brackets to brakes, rotors, cockpit components, wheels, hubs, spokes, tyres, suspension parts, bearings, and small hardware. Every product we carry is selected for durability, real-world performance, and compatibility with modern mountain bikes, gravel bikes, e-bikes, and commuter bikes.
Whether you are replacing worn components, upgrading your current setup, or building a custom bike from the frame up, Day Zero focuses on making the process accurate and hassle free. Our team understands fitment across major standards including Boost spacing, 6 bolt and Centrelock, SRAM and Shimano drivetrain compatibility, 31.8 mm and 35 mm cockpit interfaces, PressFit and threaded bottom brackets, and modern wheel and tyre specifications. This expertise allows us to guide riders to the correct part the first time, reducing downtime and avoiding costly mismatches.
We also support riders who want to optimise performance by selecting the right components for their terrain and riding style. From enduro grade wheels and powerful four piston brakes to lighter trail components for efficiency and climbing, our range is curated to deliver meaningful improvements on the trail. For e bikes and high torque applications, we stock components designed for added strength and longevity.
If you are searching for a specific part and cannot find it on our site, the Day Zero team can source it directly through our suppliers, confirm technical compatibility, and provide guidance on installation. We pride ourselves on offering a more knowledgeable, rider focused service than general retailers.
Day Zero ships nationwide with fast dispatch and ongoing support, ensuring every rider has access to trustworthy components and expert advice. Build with confidence and keep your bike performing at its best with parts you can rely on.
