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ABOUT
Refined Craftsmanship. Hardcore Dedication.
Established in 2010, Alter is born from a passion for the street. We believe that true performance lies in the solid integrity of metal and the elegance of timeless design. Through precision CNC integrated machining, we create components that bridge the gap between "Neo-Classic" aesthetics and the brutal demands of urban riding. From our development studio in Taipei, we focus on structural density and precision, providing a stiff and consistent response through every mile. Alter —— Modern Classics. Built for the Street.
P R O J E C T S
ALTER Chainring-
About X Series Chainring
X Series: The Evolution of the Gifted —— In the realm of legends, "X" is the catalyst for evolution—the mark of extraordinary abilities that transcend conventional rules. The Alter X Series channels this spirit, offering two distinct paths to mastery on the streets. X53SS: The Dynamic Mutation Designed for the individualist, the X53SS captures the raw energy of a "Special Soul." Its intricate, skeletonized geometry is a masterpiece of precision CNC engineering, unlocking a radical power-to-weight ratio for those who demand agile, superhuman performance. X53B: The Power of Cohesion A tribute to the strength found in unity. The X53B represents the "Balance" of a legendary team. Its robust, solid architecture ensures unparalleled stiffness and structural integrity, funneling every ounce of your power into pure, unstoppable momentum. Available in our signature "Inverted" collection, this series debuts the latest Alter emblem—a symbol of our evolution and your pursuit of excellence. Alter X —— Embrace your power. Forge your legacy.X Series Chainring -
About SHARK Series Chainring
SHARK Series: The Apex Predator —— Inspired by the lethal geometry of the ocean’s greatest hunter. The SHARK Series features sharp, angular cutouts that mimic the fins and teeth of a shark—symbols of raw speed, relentless balance, and eternal rebirth. This isn’t just a chainring; it’s a tribute to those with "strong leg engines" who are always in thirst for more speed. When you ride the Shark, you aren’t just cycling—you are hunting for the next finish line. Alter SHARK —— Hunt the streets. Never back down. Modern Classics. Built for the Street.SHARK Series Chainring
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About APOLLO Series Chainring
Design starts with the circle, the most perfect and purest form in geometry —— For the Apollo series, our designer used the "Circle" as the primary language, constructing a precise, concentric order across the metal. Through the interlacing of varied circular cutouts, we achieve a lightweight structure with a rhythmic visual flow. This layout not only echoes classical aesthetics but also ensures flawless dynamic balance during rotation. Carved from a single block of high-density metal with precision CNC machining. This is a piece of geometric art built for hardcore street performance.APOLLO Series Chainring -
About VINYL Series Chainring
The Soundtrack of the Streets —— The VINYL Series is born from the nostalgic rhythm of the gramophone. Every revolution of the pedals is like a needle tracing a groove, playing the unique melody of your ride. We didn’t just design a chainring; we engraved memories into metal. The concentric textures mimic the timeless aesthetic of a vinyl record, turning your drivetrain into a piece of rotating art. Alter VINYL —— Let the streets be your record player.VINYL Series Chainring
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About MM Series Chainring
MM Series: Out to Rebel —— If the SC Series represents the order of the city, the MAD MAX (MM) Series is the chaos of the wasteland. We challenged the limits of our own engineering, pushing the boundaries of lightweight design to a radical new level. By aggressively introducing irregular, high-precision CNC perforations, we’ve created a chainring that screams rebellion. It’s a raw, uncompromising tribute to the "Out to Rebel" spirit of Fixed Gear culture. No rules, no symmetry—just pure, high-octane performance. Alter MM —— Chaos engineered for the street. Modern Classics. Built for the Street.MM Series Chainring -
About SC Series Chainring
SC Series: The Architecture of Speed —— Inspired by the raw skeletal structures of industrial steel construction, the SC Series brings the strength and geometry of the cityscape to your drivetrain. While its soul is modeled after heavy structural steel, its body is precision-carved from high-density 7075-T6 aluminum. This series is a tribute to the "Steel Construction" that builds our cities—reimagined into a lightweight, high-performance racing component. Alter SC —— Engineering art for the concrete jungle. Modern Classics. Built for the Street.SC Series Chainring
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About MIDNIGHT Series cog
MIDNIGHT Series: Own the Night —— When the city sleeps, the streets belong to those who move in silence. The MIDNIGHT Series Cog is crafted for the nocturnal rider who demands both elegance and effortless performance. This is more than a component; it is a piece of kinetic art. Designed to deliver a lightning-fast response, it strips away the weight of the day to let you glide through the streets. To contrast the deep, hard-anodized finish, we’ve preserved our signature tradition: hand-painted gold details that catch the city lights as you fly through the darkness. Alter MIDNIGHT —— Precision that shines in the dark. Modern Classics. Crafted in Taiwan.MIDNIGHT Series cog