Polygon Sierra Oosten 2023
2023 Urban
Estimate price |
519$
Weight | 14.2 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 700c -
Groupset Altus, Tourney -
Suspension Rigid -
Drivetrain 1 × 8 -
Brakes Rim
Sizing
Recommended size guide.
SM/MD
155cm - 170cm
MD/LG
168cm - 180cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
AL6 City Frame, Cruiser Specific Geometry, 6061 Alloy
Suspension Fork
Hi-Ten Rigid Fork - Cruiser/Trekking Specific,Straight 1-1/8" Threaded
Drivetrain
Rear Derailleur
Shimano Altus RD-M310 8-Speed
Shift Levers
Shimano SL-RS45-8R Revoshift 8-Speed
Cassette
Shimano Altus CS-HG31, 8-Speed 11-32T
Crank
Steel 36T, 165mm (S/M), 170mm (M/L)
Bottom Bracket
Cartridge Bearing, 68x122mm Square
Chain
KMC Z-8.3 8-Speed
Pedals
Nylon Platform
Wheels
Front Hub
Formula Alloy 36H
Rear Hub
Formula Alloy 36H
Rims
Double Wall Alloy
Spokes
Stainless Steel - 36 Spokes
Tires
DELI 26 x 1-3/8" / 700 x 35C
Brakes
Brakes
Alloy V-Brakes
Brake Levers
Alloy Brake Lever
Cockpit
Stem
Polygon Alloy, Length: 80mm, Quill: 180mm, Bar: 25.4mm, Rise: 30 Degree
Handlebar
Polygon Alloy, Width: 620mm (S/M), 640mm (M/L), Rise: 112mm, Swept: 50 Degree, 25.4mm
Headset
External Cup Threaded, S.H.I.S. EC 34/28.6 | 34/30
Seat
Saddle
Selle Royal Ondina
Seatpost
Polygon Alloy, 27.2x250mm, 15mm Offset
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM/MD | MD/LG |
|---|---|---|
| Stack Reach Ratio | 1.46 mm | 1.44 mm |
| Bottom Bracket Height | 298 mm | 298 mm |
| Front Center | 606 mm | 626 mm |
| Rake | 46 mm | 45 mm |
| Trail | 85 mm | 86 mm |
| Stack | 542 mm | 556 mm |
| Reach | 370 mm | 385 mm |
| Top Tube Length | 566 mm | 586 mm |
| Seat Tube Angle | 70 ° | 70 ° |
| Seat Tube Length | 406 mm | 445 mm |
| Head Tube Angle | 69 ° | 69 ° |
| Head Tube Length | 140 mm | 155 mm |
| Chainstay Length | 454 mm | 454 mm |
| Wheelbase | 1057 mm | 1077 mm |
| Bottom Bracket Drop | 37 mm | 37 mm |
| Standover Height | 478 mm | 482 mm |
| Wheels | 700 | 700 |
| Rider Min Height | 155 cm | 168 cm |
| Rider Max Height | 170 cm | 180 cm |
About this model
Sierra Oosten belongs to the Polygon Sierra model. Polygon released 19 bikes variations of this model so far. Take a sneak peek at all Polygon Sierra bikes models from 2023, by clicking here.
Model range prices
Polygon Sierra Oosten 2023 is the cheapest bike model and costs 519$. Polygon SIERRA DS GENT 2023 is the most expensive one and costs 619$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Comfort bikes
If you want an acceptable Comfort bike you should know that the average price is 360$. However, even though the average price of a Comfort bike is lower, you might still be able to get a top-quality bike. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
When Polygon released this model in 2023, its price was 519$. In conclusion, this bike price is 44.17% more expensive than the price of the average Comfort bike.
Average weight for Comfort bikes
If we make a quick analysis of the average weight of a Comfort bike, we get 15.11 kg (33.31 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
a bit lighter than average, Sierra Oosten has a weight of 14.2 kg (31.31 lbs). In short, the average Comfort bike weight is 6.41% higher than this one.
Sierra Oosten components
Fork material
The fork is made out of steel, so, it can add some extra weight to your bike. However, steel is a pretty tough and durable material.
Wheels
The wheels on Sierra Oosten are the 700c aluminum type. There is no doubt, that 700c wheels are very popular on all road bike models. However, these wheels don’t perform so well when passing over obstacles.
Brakes
When you want to stop the bike in time, the brakes are vital. The Sierra Oosten has Rim brakes. Rim brakes are cheaper than hydraulic brakes, and also easier to maintain. However, they are not nearly as effective as hydraulic brakes are.
Sizes
Polygon Sierra Oosten bike has 2 sizes, in the range of 155 cm – 180 cm (5.09 ft – 5.91 ft). In short, you can easily find one that suits you.