Polygon · Entry-level city bike
Polygon Sierra Oosten
An everyday companion for errands and the ride across town.
Key facts
| Type | City bike |
|---|---|
| Level | Entry-level — Great value, solid parts, room to grow into. |
| Price (EU) | not sold |
| Price (US) | $600 at BikesOnline |
| Frame | Aluminium |
| Sizes | M/L |
| Last checked |
What size Polygon Sierra Oosten do I need?
A typical chart for city bikes — Polygon's own chart may differ slightly. Enter your height below and we'll pick the size.
| Size | Rider height | Inseam | Frame |
|---|---|---|---|
| S | 152–166 cm · 5′0″–5′5″ | 68–76 cm · 27″–30″ | 46–48 cm |
| M | 164–176 cm · 5′5″–5′9″ | 75–81 cm · 30″–32″ | 50–52 cm |
| L | 174–187 cm · 5′9″–6′2″ | 80–87 cm · 31″–34″ | 54–56 cm |
| XL | 185–200 cm · 6′1″–6′7″ | 86–94 cm · 34″–37″ | 58–60 cm |
Alternatives to the Polygon Sierra Oosten
All city bikes →Classic Plus Step Through
Put everyday errands on two wheels.
- Aluminium
- Shimano Nexus
- 11.3 kg
Brilliant L Train V-Brake
Put everyday errands on two wheels.
- Steel
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Speed 900
An everyday companion for errands and the ride across town.
- Aluminium
- Shimano Altus
- 11.5 kg
Polygon Sierra Oosten: FAQ
How much does the Polygon Sierra Oosten cost?
About $600 (US). Prices change often, so check the retailer for the current price.
What size Polygon Sierra Oosten do I need?
S: 152–166 cm (5′0″–5′5″); M: 164–176 cm (5′5″–5′9″); L: 174–187 cm (5′9″–6′2″); XL: 185–200 cm (6′1″–6′7″). This is a typical chart for this type of bike — confirm with the brand's size chart. Between sizes: the smaller is more agile, the larger more stable.
Who is the Polygon Sierra Oosten for?
It's a entry-level city bike: Great value, solid parts, room to grow into. City bikes are best for daily commuting in normal clothes, shopping, errands and short trips, riders who want a bike that just works with minimal maintenance.
What are alternatives to the Polygon Sierra Oosten?
Priority Classic Plus Step Through ($599), Priority Brilliant L Train V-Brake ($749), BTWIN Speed 900 (€450).
Is the Polygon Sierra Oosten right for you?
Seven questions and the Oracle tells you which type of bike fits how you ride — and your size.
Consult the Oracle →