Polygon Sierra Deluxe Sport 2021
2021 Urban
Estimate price |
599$
Weight | 16.4 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame aluminium -
Wheels 700c -
Travel Front 63mm -
Fork Suntour NEX
-
Groupset Altus, Tourney -
Suspension Hardtail -
Brakes Rim
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Alutech Alloy Citybike
Suspension Fork
SR Suntour NEX, Travel 63MM
Drivetrain
Rear Derailleur
Shimano Altus RD-M310
Front Derailleur
Shimano Tourney FD-TX51
Shift Levers
Shimano Tourney ST-EF41
Cassette
Shimano Tourney MF-TZ31 14-34T
Crank
SHIMANO FC-TY501 48X38X28T, 170MM
Bottom Bracket
Sealed cartridge
Chain
KMC Z-51RB
Wheels
Rims
Araya TX rim Alloy, Double Wall.
Tires
Schwalbe Citizen 700x40C
Brakes
Brakes
Tektro Alloy, V-Brake
Cockpit
Stem
Alloy, Adjustable, 110mm
Handlebar
Alloy, 640mm
Seat
Saddle
Comfort Saddle
Seatpost
Alloy, 27.2x350mm with spring
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | MD | LG |
|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.61 mm |
| Bottom Bracket Height | 304 mm | 304 mm |
| Front Center | 671 mm | 685 mm |
| Rake | 42 mm | 42 mm |
| Trail | 89 mm | 89 mm |
| Stack | 605 mm | 647 mm |
| Reach | 404 mm | 402 mm |
| Top Tube Length | 585 mm | 595 mm |
| Seat Tube Angle | 73 ° | 73 ° |
| Seat Tube Length | 480 mm | 520 mm |
| Head Tube Angle | 69 ° | 69 ° |
| Head Tube Length | 135 mm | 180 mm |
| Chainstay Length | 455 mm | 455 mm |
| Wheelbase | 1121 mm | 1135 mm |
| Bottom Bracket Drop | 50 mm | 50 mm |
| Standover Height | 772 mm | 713 mm |
| Wheels | 700 | 700 |
Model Overview
Sierra Deluxe Sport is a Polygon Sierra model. Polygon released 19 bikes variations of this model so far. You can easily view all of the Polygon Sierra bikes models from 2021, here.
Model range prices
Polygon Sierra Oosten 26 2021 is the most economical model, with a starting price of 449$. Polygon SIERRA DELUXE SPORT Gent/Lady 2021 on the other hand costs 619$, and is the most expensive model.
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.
Fitness bikes average price
Our math shows that the average cost of a dependable Fitness bike is 656$. However, this doesn’t mean that if you spend less money on a Fitness bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, this bike was made available in 2021 for 599$. If we compare this with the average Fitness bike cost we notice that the price is 9.52% lower.
Average weight for Fitness bikes
Fitness bikes have an average weight of 11.24 kg (24.78 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.
Sierra Deluxe Sport weighs 16.4 kg (36.16 lbs) and is much heavier than the average. In conclusion, the average Fitness bike weighs 45.91% less than Sierra Deluxe Sport.
Overview of components
Fork
The fork installed on this bike is the Suntour NEX model. The travel on this model is 63mm. Bike forks are great for shock absorption and provide you with a smooth ride. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Wheels
The wheels on Sierra Deluxe Sport are the 700c aluminum type. These wheels are the most used kind for road bikes in general. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
When you want to stop the bike in time, the brakes are vital. The Sierra Deluxe Sport has Rim brakes. Rim brakes are cheaper than hydraulic brakes, and also easier to maintain. However, you could spend a little extra and get a bike that has hydraulic brakes.