gravel
SARTO RASO GRAVEL & CHERRY BLOSSOMS
A custom Sarto Raso Gravel finished in a stunning Cherry Blossom paint scheme by Velocolour. Built with a SRAM Red mullet drivetrain, Chris King wheels, and race-ready components, this gravel bike is destined for the start line, not the ...
December 17, 2025
BOTW: PROVA MOSTRO - GRAVEL REFINED
This week we’re looking at another edition of the Prova Mostro Gravel bike. Titanium fork, big wheels, fast tires, and great lines. Intended for fast, efficient riding on smoother gravel roads, the Mostro backs up its striking aesthetics with a ride feel to match. For wheels and rubber we chose Duke’s Baccara WRX Aero 42 built around a set of Chris King ...
December 2, 2025
The Do-Everything Mosaic GT-1 iAR
This week's BOTW is an especially fun one for me. I absolutely love my Mosaic GT-1 iAR fancy pants rain bike and a friend of ours was looking to do something similar with a bit more versatility in mind. Read on to learn about the inspiration and intention behind this eye catching build. First, a little background on my bike and why we came up with thi...
November 21, 2025
No. 22 Drifter X: Titanium in
Black Evening Wear
A big-wheel, fat tire No22 Drifter X dressed in polish and black evening wear. This is about as clean as this well-dressed beast will ever be, so take a long look at all that glistens while you can. This bike was made for the mountain — pavement need not apply. Bad poetry aside, it’s built to stay on the rough stuff all day long: wide wheels, wider tir...
June 23, 2022
Bike of the Week: A Sea Green No.22 Drifter X
No. 22 don’t do fanfare. In fact, compared to most bike builders, they’re positively silent. But what they lack in chat, they more than make up for with the quality of their work, with frames like the Aurora, Reactor, Great Divide, and Drifter X. Recently, we got a chance to renew our love affair with No. 22, thanks to a stunning Drifter X build that easi...
October 21, 2021
October AC Dirt Ride 10/31
Join us Sunday 10/31 for our October dirt ride. We'll be taking on a true Marin classic route—up RRG, over to Pantoll Station, down Coast View, and back over to Tennessee Valley. Meet up at the AC studio at 8:00 AM for coffee and snacks before a sharp 8:30 roll out. Gravel or XC bikes are ideal, especially after a good week of rain. We'll be riding at...
June 21, 2021
Unbound Relived: 206 Miles of Grueling Flint Hills Gravel
If you’ve been following our journal or Instagram recently, then you might be aware of the trip I made to Kansas at the beginning of June to race the Unbound Gravel 200. For those who haven’t, the Unbound Gravel 200 is a 206 mile gravel race through the rolling Flint Hills of Kansas. The race starts and finishes in Emporia, Kansas and has become the prem...
January 17, 2020
OSBR 2: The Aftermath
A burly 55 mile mixed terrain route, navigating rugged dirt roads covered in rocks and mud pits, scaling pitches nearing 20%, and averaging over 1k ft of climbing per 10 miles, all right in the middle of January with a very high chance of rain? It sounds like a pretty ridiculous thing to do, but somehow we convinced a crowd to sign up, and even after the ...