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About MM Series Chainring

Mad Max series - (Out to Rebel)
This time round, we had challenged ourselves to push the light weight of our SC series chainrings to the next level with a new form of design by drilling holes crazily and irregular on the chainrings using CNC, creating the sense of Rebellion of the Fixed Gear culture!


About SC Series Chainring

Many people might be confused about why we put #steel_construction while it is made of 7075 Aluminum forged through CNC.
Well, Alter_Cycles SC series Chainring was inspired by the image and patterns of the Structural Steels often seen in construction worksites. Hence it was given the name SC (Steel Construction) series.
While creating this chainring, we had an idea that our product is not only a piece of bike part but also a piece of art in order to satisfy our users on both the quality and appearance of our products.
Thank you for your supports, we will present to you the best quality from Taiwan!

Alter Cycles Official Trailer  

Alter Cycles has been out there since 2010 and we aim to design and produce the finest quality and functionality of bicycle components. The brand was born in Taipei Taiwan and provides the craftsmanship in a very professional way! We are stoked for the support from people around the world and sharing the same passion that we all have for two wheels. That is why, we announce the official trailer of our first promotional video project. Here, we are introducing the our two newest chainrings, SC and Mad Max series. Keep on pedaling and keep this cycling lifestyle alive! Stay tuned for the official one.


Minor Threat-I Don't Wanna Hear It


Alter Cycles Official Video  

It is out! The official video of Alter Cycles and we are super stoked to let you have a glance over our beloved city Taipei! We hope you go out there with your track bike and be wild. What Alter Cycles represents is not just the product, the brand, but a lifestyle for all cycling! We will see you on the road..

For following:


Tim Huang (Track Or Trick)

Chris Yang
Lin David

Special Supporter
KI TOU Bike Studio

I Origins-Lucky Elevens
Minor Threat-Straight Edge