MANUFACTURING QUALITY,

PRECISION BICYCLE FRAME

BUILDING COMPONENTS

∼ Since 1983 ∼

What's New

12 mm Left Side Insert for Conventional Sliding Dropout and Post Mount for 180 mm Rotor
12 mm Left Side Insert for Conventional Sliding Dropout and Post Mount for 180 mm Rotor
Available now! 12 mm left side insert for our Conventional flat and flanged sliding dropouts with post brake mount for 180 mm rotor.
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ATI Hole Saw Arbors
ATI Hole Saw Arbors
Check out our new hole saw arbors that are compatible with ATI hole saws.
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Customer Feedback

@paragonmachine flat mount UDH dropouts made this build doable for me. Worth every penny.

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- @swarrcycles

I love the stuff you make.

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- Justin

Thank you for making T-type easy!

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- Nate

For the record, I absolutely love the conventional sliding dropouts you make! They never slip and are very tough, perfect for a bike that needs an adjustable dropout. I also think that they're beautiful.

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- Mike

Hi just letting you know I got the dropouts [DR2013] today from fedex. Thanks. Happy with purchase. Good quality.

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- Mark

These @paragonmachine UDH flat mount dropouts are my new favorite thing.

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- @swarrcycles

    Exceptional quality, customer service, and innovation.

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