NAHBS 2016: Crumpton Type 5 Disc Brake – carbon and custom

Nick Crumpton forms the tubes, builds the frame and does all the paintwork in house.

North American Handmade Bicycle Show Road Bike
Nick Crumpton specializes in only one frame material: carbon. The Type 5 Disc is gravel ready and has options for Di2.

Nick Crumpton specializes in only one frame material: carbon. The Type 5 Disc is gravel ready and has options for Di2 (click to enlarge).

Nick Crumpton (Crumpton Cycles) has been around for a long time building frames starting in the 90’s. But he has specialized in custom carbon since 2004 and he creates each bike himself, every step of the way. He is based in Austin, TX and his style and designs are clean and efficient and his latest project is the new Type 5 shown here, with flat mount disc brake and 12×142 thru-axle.

Close-ups of the flat mount disc brake, CRUMPTON logo on the down tube and seatstay forming.

Close-ups of the flat mount disc brake, CRUMPTON logo on the down tube and seatstay forming (click to enlarge).

The Type 5 is Crumpton’s platform for most of his road bikes, but this one is more “all-road” oriented with room for a 32mm tire on a 21mm rim with 6mm on either side. Pushing these limits, it might be possible to run a 35mm tire. The T5 disc has a 415mm chainstay length that can run a full size 53×39 chainrings. This allows the rider to fit fatties for their dirt duties, but still be able to run a 23mm tire and race crits on Sunday. The chainstay and dropout are molded in house, in a single contiunous part. The frame also has internal routing for hydraulic brake lines all the way from the head tube down to the back of the chainstay (see photo). Shimano Di2 wiring can also be run internally for a super sano look.

A shot of the inside of the chain stays showing the internal cable routing.

A shot of the inside of the chain stays showing the internal cable routing (click to enlarge).

Up front, the Type 5 disc can be fitted with either a standard disc road fork or larger clearance gravel/cross forks like the ENVE shown here. Crumpton forms all the carbon tubing himself and does his own paintwork so building a frame like the Type 5 is well over 30 hours for this one man shop. The Type 5 Disc featured here is marked Prototype because this is the very first of its kind. Tooling has now been finalized and Nick says he can start shipping these frames around June of this year. If a customer orders now, delivery would happen this summer. Nick produces about 35 frames per year.

As goes for all handmade bikes, the performance, quality and craftsmanship doesn’t come cheap. Frames start at $6500 including carbon fork, headset and bottom bracket.

For more information visit www.crumptoncycles.com/.

About the author: Gregg Kato

Gregg Kato studied journalism and broadcasting in college while working many different jobs including deejaying, driving a forklift and building web sites (not all at the same time). Kato enjoys riding local Portolla Valley roads. Besides being an avid cyclist, he is also a motorcycle fanatic. Two wheels, one Passion.


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