Trieu’s 650B gravel bike

Trieu’s 650B gravel bike

Trieu came up to visit, so we were able to review his fit and plan out his build. His frame features a custom butted, round integrated seatmast with matching cap, a T47 BB shell to allow for fully internal rear hose routing, and internal routing for the Campy gear cables.

A matching steel fork and custom stem up front maintain the lines. I built Trieu two sets of wheels around Chris King R45 disc hubs – both feature Astral rims, with one set shod with 38mm tires, and the other 42mm knobby tires for more off-paved riding. The stealth ceramic coating on the rims is a good match for the King matte slate anodised finish.

There aren’t (yet!) too many options in 160mm cranks – the Lightning carbons have the added appeal of being made in the US. I was able to mix-and-match some chainrings to get a 30/48 set for a wide range of gears. The rest of the group is Campy Super Record with hydraulic disc brakes.

The frame and fork have all the mounts needed for full fenders – we used the 650B model from Portland Design Works, which were painted to match.

Trieu sourced a custom covered saddle and matching bartape from Mick at Busyman in Australia.

The paint is based on Porsche colors, applied by Colorworks. Final complete weight as shown is 20.1lbs.

One Comment

  1. Made in Oregon: nice!
    Super Gravel: Trieu is one lucky boy!
    Should convert nicely to fit 700×23 wheelset with fenders off for road.

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