public R18 Drop Bar 2025
Bike details
Key information split into simple groups.
Bike summary
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Frame Steel
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Groupset Sora
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Suspension Rigid
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Drivetrain 2 × 9
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Brakes Rim
Recommended size guide.
XS
151cm - 164cm
SM
159cm - 170cm
MD
165cm - 177cm
LG
171cm - 184cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
PUBLIC 100% chromoly steel, with fender and rack braze-ons
Suspension Fork
PUBLIC 100% chromoly steel fork, with fender and rack braze-ons
Drivetrain
Rear Derailleur
Shimano Sora R-3000 9-speed
Shift Levers
Shimano Sora, Dual Control, 9-speed index
Cassette
Shimano 9-speed HG50 11-30 tooth cassette
Crank
Alloy double crankset 50/34 tooth rings (XS/S: 170mm M/L: 175mm)
Pedals
Wellgo M149 full alloy platform and cage, 9/16" axle
Wheels
Front Hub
Alloy hub with bolt-on quick-release skewer
Rear Hub
Alloy hub with bolt-on quick-release skewer
Rims
Alloy double wall, 32H, 700c
Spokes
14G Stainless steel
Tires
Kenda Kwest 700x28c, Tanwall
Brakes
Brakes
Cold forged, high polish, alloy dual pivot caliper, with ergonomic brake levers
Cockpit
Stem
Alloy, threadless high polish silver, 25.4 clamp (80mm for XS/S/M; 100mm for L)
Handlebar
Classic alloy drop bar (XS/S: 400mm, M/L: 420mm)
Grips
PUBLIC perforated microfiber
Headset
1.125" threadless, steel
Seat
Saddle
PUBLIC Premium Sport Saddle, 153mm wide, chromoly rails, with brass rivets
Seatpost
Alloy micro-adjust with integrated clamp, 27.2mm
Fit data
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG |
|---|---|---|---|---|
| Wheels | 700 | 700 | 700 | 700 |
| Rider Min Height | 151 cm | 159 cm | 165 cm | 171 cm |
| Rider Max Height | 164 cm | 170 cm | 177 cm | 184 cm |
