Opus BIG CITY 2 2021
2021 Urban
Estimate price |
615$
Weight | 12.75 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 650b -
Groupset Tourney, Shimano -
Suspension Rigid -
Drivetrain 3 × 8 -
Brakes Mechanical Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
SM
163cm - 174cm
MD
171cm - 182cm
LG
179cm - 189cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Meta 20 aluminum
Suspension Fork
Steel tapered 1-1/4 to 1-1/8 in
Drivetrain
Rear Derailleur
Shimano Tourney
Front Derailleur
Shimano Tourney
Shift Levers
Shimano ST-EF500 3x8
Cassette
Shimano 11-30
Crank
Shimano FC-TY301
Bottom Bracket
Neco cartridge
Chain
KMC-Z8.3
Pedals
FPD NW-247
Wheels
Front Hub
Joytech
Rear Hub
Joytech
Rims
Weinmann U28 650
Tires
Kenda Kwick Seven.5 650 x 45
Brakes
Brakes
Tektro MD-M280 mechanical disc
Brake Levers
Shimano
Cockpit
Stem
Promax
Handlebar
Alloy 12 mm rise
Headset
FSA Orbit integrated sealed
Seat
Saddle
Opus City
Seatpost
Promax alloy 27.2 x 300
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Stack | 557 mm | 572 mm | 587 mm | 602 mm | 617 mm |
| Reach | 372 mm | 382 mm | 392 mm | 402 mm | 412 mm |
| Top Tube Length | 527 mm | 547 mm | 567 mm | 587 mm | 607 mm |
| Seat Tube Angle | 74.5 ° | 74 ° | 73.5 ° | 73 ° | 72.5 ° |
| Seat Tube Length | 380 mm | 420 mm | 460 mm | 500 mm | 540 mm |
| Head Tube Angle | 71 ° | 71.25 ° | 71.5 ° | 71.75 ° | 72 ° |
| Head Tube Length | 148 mm | 163 mm | 183 mm | 198 mm | 213 mm |
| Chainstay Length | 437 mm | 442 mm | 442 mm | 442 mm | 447 mm |
| Bottom Bracket Drop | 65 mm | 65 mm | 60 mm | 60 mm | 60 mm |
| Standover Height | 723 mm | 749 mm | 780 mm | 805 mm | 831 mm |
| Wheels | 650 | 650 | 650 | 650 | 650 |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |
About this model
BIG CITY 2 completes the Opus Big City model. Opus launched 9 bikes of this model so far. You can easily view all of the Opus Big City bikes models from 2021, here.
Model range prices
The most economical model, the Opus BIG CITY 2 2021 has a starting price of 614$. Opus BIG CITY LRT 2021 on the other hand is the most expensive at 759$.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Commuter bikes
According to our calculations, the average cost of a Commuter bike that is reliable is 762$. However, even though the average price of a Commuter bike is lower, you might still be able to get a top-quality bike. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, this bike was made available in 2021 for 614$. Comparing the average cost of a Commuter bike to this one, you will see that BIG CITY 2 price is 24.1% smaller.
Average weight for Commuter bikes
Commuter bikes have an average weight of 14.29 kg (31.5 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
considerably lighter than average, BIG CITY 2 has a weight of 12.75 kg (28.11 lbs). To sum up, it’s 12.08% lighter than the average weight of Commuter bikes.
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
The BIG CITY 2 2021 bike is equipped with aluminum wheels when leaving the factory. The 650b wheels are very similar to 700c, with a slight difference in diameter. However, if speed is what you’re after, 700c wheels are a better fit.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The BIG CITY 2 comes with Mechanical Disc brakes. These brakes are also very popular, and a lot cheaper than hydraulic disk brakes. However, they don’t have the stopping power of hydraulic brakes.
Sizes
Opus BIG CITY 2 bike has 5 sizes, in the range of 156 cm – 195 cm (5.12 ft – 6.4 ft). In conclusion, finding one for you shouldn’t be a problem.