Polygon · Entry-level full-suspension trail bike
Polygon Siskiu D5
Full suspension keeps the ride composed when the trail gets lively.
Key facts
| Type | Full-suspension trail bike |
|---|---|
| Level | Entry-level — Great value, solid parts, room to grow into. |
| Price (EU) | not sold |
| Price (US) | $1,400 at BikesOnline |
| Frame | Aluminium |
| Groupset | Shimano Cues |
| Sizes | S, M, L |
| Last checked |
What size Polygon Siskiu D5 do I need?
A typical chart for full-suspension mountain bikes — Polygon's own chart may differ slightly. Enter your height below and we'll pick the size.
| Size | Rider height | Inseam | Frame |
|---|---|---|---|
| S | 152–167 cm · 5′0″–5′6″ | 68–77 cm · 27″–30″ | 15–16" |
| M | 165–177 cm · 5′5″–5′10″ | 75–82 cm · 30″–32″ | 17–18" |
| L | 175–187 cm · 5′9″–6′2″ | 80–87 cm · 31″–34″ | 19–20" |
| XL | 185–200 cm · 6′1″–6′7″ | 85–94 cm · 33″–37″ | 21–22" |
Alternatives to the Polygon Siskiu D5
All full-suspension mountain bikes →Siskiu D7
Full suspension keeps the ride composed when the trail gets lively.
- Shimano Deore
Spectral 5
Climb for the view, then enjoy the winding way back.
- Aluminium
- Shimano Deore
- 150 mm
- 15.9 kg
Rift Zone 2
Full suspension keeps the ride composed when the trail gets lively.
- Aluminium
- Shimano Deore
- 140/130 mm
Polygon Siskiu D5: FAQ
How much does the Polygon Siskiu D5 cost?
About $1,400 (US). Prices change often, so check the retailer for the current price.
What size Polygon Siskiu D5 do I need?
S: 152–167 cm (5′0″–5′6″); M: 165–177 cm (5′5″–5′10″); L: 175–187 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 Siskiu D5 for?
It's a entry-level full-suspension trail bike: Great value, solid parts, room to grow into. Full-suspension mountain bikes are best for singletrack with roots, rocks and drops, riders who want one mountain bike that does everything, alpine riding and long days on varied trails.
What are alternatives to the Polygon Siskiu D5?
Polygon Siskiu D7 ($1,800), Canyon Spectral 5 (€2,299 / $2,799), Marin Rift Zone 2 ($2,499).
Is the Polygon Siskiu D5 right for you?
Seven questions and the Oracle tells you which type of bike fits how you ride — and your size.
Consult the Oracle →