public D8i Alfine Disc 2023
2023 Urban
Estimate price |
1,399$
Weight | 14.97 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 700c -
Groupset Alfine -
Suspension Rigid -
Drivetrain Internally Geared Hub -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 170cm
MD
168cm - 179cm
LG
176cm - 187cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
PUBLIC 100% 4310 Chromoly steel, with fender and rack braze-ons, integrated kickstand bracket
Suspension Fork
PUBLIC 100% 4130 Chromoly steel unicrown disc fork, with fender and rack braze-ons
Drivetrain
Shift Levers
Shimano Alfine Rapidfire trigger shifters for 8-speed internal hub
Cassette
Shimano 20 tooth cog
Crank
Shimano Alfine S501 Crankset, 39T, 170mm
Chain Guide
Painted to match, alloy
Pedals
Wellgo M149 full alloy platform and cage, 9/16
Wheels
Front Hub
Formula alloy hub with quick-release axle (front)
Rear Hub
Shimano Alfine 8-speed internal hub with disc mount
Rims
Painted to match, alloy double wall, 32H 700c
Spokes
14G Stainless steel
Tires
Kenda Kwest, 700x35c, 60TPI, with reflective stripe
Brakes
Brakes
Shimano MT-200 hydraulic disc brake, Deore SM-RT86 160mm rotors, with 3-finger steel levers
Cockpit
Stem
High polished alloy, threadless, +/- 10 degree rise, 25.4 clamp (80mm for S/M; 100mm for L)
Handlebar
PUBLIC Brunch handlebar, alloy, 570mm wide
Grips
PUBLIC Slender Grip, with alloy clamps
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
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG |
|---|---|---|---|
| Wheels | 700 | 700 | 700 |
| Rider Min Height | 158 cm | 168 cm | 176 cm |
| Rider Max Height | 170 cm | 179 cm | 187 cm |
About this model
D8i Alfine Disc completes the Public D8i model. Public launched 2 bikes of this model so far.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Commuter bikes average price
If you want an acceptable Commuter bike you should know that the average price is 762$. However, you could also get a good Commuter bike even if you pay a lower amount than the average price. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
When Public released this model in 2023, its price was 1399$. If we compare this with the average Commuter bike cost we notice that the price is 83.6% more expensive.
Average weight for Commuter bikes
The average weight for Commuter bikes is 13.77 kg (30.36 lbs). A lighter bike will give you some extra advantage when climbing. A heavier bike will have more speed for descents.
With a weight of 14.97 kg (33 lbs), Public bike is a bit heavier than average. In conclusion, the average Commuter bike weighs 8.71% less than D8i Alfine Disc.
Overview of components
Fork material
The fork is made out of steel, which is tougher than carbon in the case of an impact. However, it can add some extra weight to the bike.
Wheels size
When it comes to wheels, the D8i Alfine Disc bike is equipped with the 700c aluminum model. These are the most popular wheels for road, aero, gravel, cyclocross, race, and gravel bikes. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, you can ride your bike with confidence.
Sizes
Public D8i Alfine Disc bike has 3 sizes, in the range of 158 cm – 187 cm (5.18 ft – 6.14 ft). In conclusion, it won’t take much to find one that’s right for you.