Improve your everyday with our new PUBLIC R18 Disc. We went back to the drawing board for a totally redesigned flat-bar road bike, featuring all-weather mechanical disc brakes, an updated cockpit, and a 2x9 drivetrain to conquer even the steepest hills. Whether you need a light and fast commuter or a versatile bike for any weekend adventure, the new R18 Disc combines high-performance design with modern commuter sensibility.
The PUBLIC R18 Disc offers a light-weight Chromoly frame now with sizes to fit riders from 4’10 to 6’3”. Spec changes from previous versions include an upgraded Shimano Sora drivetrain with rapid-fire trigger shifters for quick and effortless shifting, all-weather disc brakes that allow you to stop on a dime, an improved commuter-tested cockpit to maximize speed and comfort, and our Premium Sport Saddle designed to give you the same comfort and performance of a well-worn leather saddle on your very first ride.
Design and aesthetics are a top priority for any PUBLIC bike design, and the new R18 Disc is no exception. The frame features reflective, minimalist pinstripes with premium grips and saddle to match, and the removable alloy fenders will keep your work threads clean from the road to the office. We’re confident that this bike is our most premium commuter yet, and perfect for both men and women who prefer the comfort of a flat handlebar without compromising performance or style.
We strongly encourage our unique Ready to Ride shipping option for this model. You'll receive a 99% assembled bike right to your doorstep, carefully tuned and packed by our trained technicians in Marin County, California.
SPECS:
FRAMESET
| Frame: | PUBLIC 100% Chromoly steel, with fender and rack braze-ons |
| Fork: | PUBLIC chromoly hi-tensile blend unicrown disc fork, with fender and rack braze-ons |
| Fenders: | Polished silver, 47mm alloy fenders (F/760mm, R/1230mm) |
| Kickstand: | Integrated kickstand plate (kickstand not included) |
CONTACT POINTS
| Saddle: | PUBLIC Premium Sport Saddle, 153mm wide, chromoly rails, with brass rivets |
| Grips: | PUBLIC Slender Grip, with alloy clamps |
| Stem: | Alloy, threadless high polish silver, 25.4 clamp (80mm for XS/S/M; 100mm for L) |
| Headset: | 1.125" threadless, steel |
| Pedals: | Wellgo M149 full alloy platform and cage, 9/16" axle |
| Handlebar: | PUBLIC alloy riser bar, 610mm wide, 10 deg backsweep, 20mm rise |
| Seat Post: | Alloy micro-adjust with integrated clamp, 27.2mm |
DRIVETRAIN AND BRAKES
| Derailleur (F): | Shimano Sora R-3000 (2x9) |
| Derailleur (R): | Shimano Sora R-3000 9-speed |
| Shifter: | Shimano Rapid Plus |
| Crank: | Alloy double crankset 46/34 tooth rings (S: 165mm M: 170 L: 175mm) |
| Cassette: | Shimano 9-speed HG400 11-32 tooth cassette |
| Brakes | Promax mechanical disc brakes with 160mm rotors, with alloy 4 finger lever. |
WHEELS AND TIRES
| Tires: | Kenda Kwest 700x32c |
| Tubes: | Presta, 48mm valve |
| Rims: | Alloy double wall, 32H, 700c |
| Spokes: | 14G Stainless steel |
| Hubs: | Alloy hub with bolt-on quick-release skewer |
| Weight: | 27lbs |
*In the bicycle industry, suppliers and factories sometimes change specs without notice and state that they are "subject to change without notice". This is because bicycles are made from hundreds of parts which come from dozens of vendors. Parts are sometimes updated to the most current production generation/iteration one gets better or more current parts or a comparable part. Product specifications are subject to change without notice.