Paragon Machine Works

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Low Mount Disc Dropout

With Eyelets

Flanged Sliding Dropout

Steel Rear Dropout

Flat Caliper Mounts

Independent Fabrication

Round Rear Dropout

Donhou Bicycles

Mark Norstad, Founder

Machine Shop, Redwood High School

Friends and Mentors

MBHoF Induction, 2017

PolyDrop

Classic Trailmasters

Fort Cronkhite Radar Base

12 mm Low Mount Disc Dropout

Northern Frameworks

Steel Rear Dropout

Shimano DM Hanger

Mosaic Bespoke Bicycles

Rocker Dropout

Triton Bikes, Rohloff Hub