Transition launched SBG, the Pacific Northwest brand’s new approach to frame design, earlier in 2017. The test balloon that carried Speed Balanced Geometry (SBG) into orbit was the Sentinel, a 140-millimeter rear travel, 160 front-travel 29er. The concept combined a steeper seat angle, shorter stem, longer front-center, slacker head angle and a shorter fork-crown offset to put the rider in a position that offers more front wheel traction and better stability at speed. It must have worked because Transition expanded SBG to all remaining full-suspension trail bikes this past summer. Today, the Sentinel itself makes the leap to a full carbon frame. The geometry hasn't changed, nor have the build kits, though there’s no NX build available on the Carbon Sentinel. It weighs 2.5 pounds fewer and costs a grand more, as to be expected. And of course, Transition has released a pretty cool video about it.

And it just so happens we have our own pretty cool video about it, but you’ll have to wait until tomorrow, Friday the 29th, to see it. In the meantime, check out Transition’s site for build kits, spec details and lots of pretty pictures.