Built in carbon.
Proven in tests.
Twitter has led carbon bicycle development since 2010, from Longhua, Shenzhen — road, gravel, mountain and electric, carbon only. We are the official US distributor, and this page is everything we stand behind: the technology, the factory, and certificates you can verify yourself.
What sets Twitter apart.
Frames crafted with Toray® T800-class carbon and molded with EPS inner-mold technology — higher strength, precise frame shapes, optimized weight. You can watch it happen below.
Groupsets from Shimano, SENSAH, L-TWOO and WheelTop wireless — selected for durability, smooth performance and easy servicing anywhere in the world.
Each carbon frame carries a unique identification sticker — production tracked at batch level by the quality team before any bike is boxed.
No entry-level alloy line hiding in the catalog: every Twitter is a carbon bike, with performance geometry and factory-direct pricing.
EU Product Safety — Bikes
EN ISO 4210-1 / 4210-3 : 2023The international bicycle safety standard: frame impact tests, fork fatigue tests, braking and structural requirements. It's the same standard applied to every bike legally sold in the European Union — whatever the brand.
Verify this certificate ↗EU Safety — Electric Bikes
EN 15194 : 2017 + A1 : 2023The European EPAC standard for e-bikes: electrical safety, motor assistance limits, EMC and mechanical integrity — covering our full electric line (EM5, EM6, EM8, EM10, EM19, EC1 and more).
Verify this certificate ↗Factory Quality System
ISO 9001 : 2015Our factory's quality management system is independently audited — design, production and sale of bicycles — with surveillance audits at regular intervals to keep the certificate alive.
Verify via official registry ↗"Direct from factory" doesn't mean "unregulated". It means you get the bike that passed the same tests — without paying for the dealer network on top.
Inside the Testing Center.
Straight from the factory floor — where your frame is built and beaten before it ships.
The material itself.
Our frames use Toray T800 / T1000 / T1K high-modulus carbon — the same fiber classes engineered for aviation-grade structures, laminated for stiffness where you sprint and compliance where you sit.
Threaded T47 bottom brackets (no press-fit creaks) and standard-size sealed bearings — any bike shop on earth can service it, years from now, without depending on us.
Every bike is assembled complete, gears tuned, brakes bled, torque-checked — then partially disassembled only to fit the box. You finish 4 steps at home.