A subtle but brilliant Kawasaki Z1 from AC Sanctuary, a wild supercharged Triumph Bobber from England, and a sneak peek at the new, 80s-style Honda CB-F concept.

RCM-507: A new AC Sanctuary Z1 Every time we feel like we need a ?reset? of sorts, we check in on AC Sanctuary. Their builds are timeless, classy and impeccably constructed?like a new album from Arcade Fire, you know exactly what you?re going to get, but you also know it?s going to be good.
This Z1 sticks to the formula. It?s more visually subdued than most of the builds from the Japanese workshop, but we like it that way. Every part has been stripped back to the metal and either upgraded, replaced or refinished.

The forks are top-shelf Öhlins, the wheels are OZ Racing, and the blueprinted 930cc engine breathes through Mikuni TMR38 carbs. Nitro Racing parts are everywhere; from the foot controls to the cooling system to the full titanium exhaust system. If you?re used to riding modern bikes, older variants often disappoint?as anyone who has ridden the old and new Katanas will realize. But we?re betting this Z1 can hold its own with any sporty modern roadster, and will probably hold its value better too. [AC Sanctuary RCM-507]

Supercharged Triumph Bobber Jody Millhouse of Thornton Hundred Motorcycles in England is a bit of a power freak. We covered his ballistic, tuned Ducati Panigale 1299 an earlier edition of BOTW, and he?s now back with an even more extreme machine?a Triumph Bobber with forced induction...