Uncompromising Speed

The Reactor is the fastest on-road bike we make. Period.

Configure + Buy a Reactor

The No. 22 Reactor

The Reactor is intended to be the most race-oriented road frame in the No. 22 lineup. With an emphasis on stiffness, responsive handling and light weight, the Reactor is the perfect titanium stage race tool.

When developing the Reactor, we set out to increase the already high levels of drivetrain stiffness offered by our versatile Great Divide road bike. To achieve this, the Reactor features an oversized down tube and chain stays, both of which are among the largest offered on a titanium frame. The Reactor’s chain stays are a full 25.4mm in diameter, ovalized to 30mm at the bottom bracket for increased stiffness. When coupled with the bike’s oversized head tube and size-specific butting and tubing sizes, the result is a bike that responds crisply and immediately to hard efforts

There are bikes that make you feel fast ...

"... bikes that make you look cool, and bikes that imbue a sense of strength, power and invincibility. Every so often, a bike comes along that carries all of these traits and leaves its rider speechless. No. 22's Reactor is one of these and one of the challenges when reviewing it is to know where to begin."

RIDE Cycling Review issue #72

Optional Finishes

Make your No. 22 truly yours. In addition to our standard raw finish, every No. 22 is available in ten optional anodized finishes. Our unique anodizing process gives us the widest range of anodized titanium colours available

Feature Rich

The Reactor includes as standard what most builders charge extra for. Every Reactor includes:

- Fully butted tubeset, butted in-house by CNC

- Tapered head tube for integrated headsets

- Brushed and blasted frame graphics, with no decals or stickers

- Ten year warranty against manufacturing defects

- T47 threaded oversized bottom bracket shell

- Full carbon No. 22 fork designed specifically for our frames

- Generous clearance for 30mm tires

Details Matter

Complete your Reactor build with a range of thoughtful finishing details, including:

- Titanium bottle cages finished to match

- No. 22 aluminum stem, custom painted to match the fork

- Your choice of 0-offset or 22.5mm setback seatmast topper


Brake Type Rim brakes
Tire Clearance 30mm measured tire
Front Axle Spacing 100mm QR
Rear Axle Spacing 130mm QR
Fork Dimensions 48-52cm sizes: 50mm offset, 368mm length. 54-60cm sizes: 45mm offset, 368mm length.
Derailleur Hanger Replaceable
Bottom Bracket Shell T47 threaded, 68mm wide
Front Derailleur Clamp Size 34.9mm
Seatpost Size N/A - Integrated seat mast
Headset Type 41/47 Integrated
Fender Mounts None


Size 50cm 52cm 54cm 56cm 58cm 60cm
Effective top tube length (mm) 515 530 545 565 580 595
Seat tube, center-center (mm) 456 475 496 514 545 568
Head tube length (mm) 100 120 140 160 190 210
Seat tube angle (deg) 74.5 74 74 73.2 73 73
Head tube angle (deg) 72 72 72.8 73.2 73.2 73.2
Front center (mm) 571 582 586 595 608 623
Chain stay length (mm) 410 410 412 412 415 415
BB drop (mm) 72 72 72 70 68 68
Reach (mm) 374 379 388 395 400 409
Stack (mm) 503 522 545 564 590 609
Standover (700x25mm tires) 739 757 779 800 829 850

Discipline Chart

Our models span many types of riding and often have talents bridging from one area to another. Our Discipline Chart helps explain which models are best for your particular riding.

Accolades & Awards


The Build Proess


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