Boo SL-G Custom Gravel Bike

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The SL-G is our top of the line custom geometry gravel bike.  A road-geometry race bike, the SL-G excels in extremely rough terrain–flint, hard rock, and washboard dirt roads.

PRESS: BICYCLING MAGAZINE | CYCLOCROSS MAGAZINE | BIKE RUMOR | R&D

Our SL Series represents the pinnacle of bamboo and carbon technology, and is focused on delivering the ultimate performance from both materials.  This series is fully-custom and offered on a made-to-order-only basis.

$4495 gets you our fastest, most responsive, and comfortable gravel race frame, hand-tailored to your measurements and objectives.  It doesn’t get better than this.

Boo SL-G: Built to fit, rip, and last

Built from a custom BikeCAD designed to your exact measurements and specifications, the SL-G fits its rider like their favorite bibs.  Those long days in the saddle stay comfortable much longer than on a stock geometry frame.

Bringing this rig to a halt on loose surfaces requires fat gravel meats and stout stoppers—the SL-G has this covered with ample tire clearance (up to 42mm) and a 12x142mm QR thru axle rear end.  We hand-wrap the carbon around the bamboo and a custom-machined axle assembly, then remove all metal to create a custom-molded carbon and bamboo thru-axle dropout.  Its stiff, stout, and light.

We also give our Tam Vong bamboo tubing a special interior S-2 glass layer for extra reinforcement.  This strong and absorptive material distributes impacts over a greater surface area.  Think of a massive, sharp chunk of Dirty Kanza flint striking the down tube–the bamboo and S-2 glass absorb and disperse this impact, deflecting damage and maintaining the frame’s structural integrity.

Going for a clean, low-profile look? The SL-G frame is drilled to accommodate internal routing of Di2 wires and hydraulic brake hoses.  The SL-G is also our stoutest frame yet, and it’s backed by the Boo Warranty and our satisfaction guarantee.

Which bucket list race will you be tackling first with your SL-G?

 

FRAME ONLY$4495

COMPLETE BUILDS$7,000-10,000+

 

Contact us for a quote!  We love talking bikes.

  • Please tell us a little about the SL-G you are interested in building. A Boo representative will follow-up with you as soon as possible.

Customizing Options

1 review for Boo SL-G Custom Gravel Bike

  1. 5 out of 5

    :

    As a founder of Boo Bicycles, I may be biased…but I’ve raced and ridden most of the top bikes in the world. And the SL-G is simply the most remarkable combination of stiffness, responsiveness, and supple, sublime ride quality I’ve ever experienced. The bike reacts instantly to my inputs, but I don’t need to DRIVE it when I’m eight hours into a 13 hour race like the Dirty Kanza 200. It just disappears underneath me, and feels more comfortable than an old baseball glove…yet when I get out of the saddle and attack up a climb, the bike moves forward with such ferocity it’s almost frightening. I can never go back to carbon monocoque ever again…the SL-G is my dream bike and is a joy to ride fast, slow, long, short, up, down, and in every condition.

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