Chat ZaloALX frame
A light, hydroformed ALX alloy frame made in Polygon's own factory.
Polygon · Cross Country
Polygon SISKIU D7
Real full suspension at a friendly price
- Cross Country
- 120mm travel
- ALX alloy frame
- 27.5" / 29" wheels
Retail price38.900.000₫
- Genuine Polygon bike, distributed by Spinlab
- Free shipping on orders from 2,000,000₫
- Free size advice via our hotline
Real full suspension at a friendly price
Siskiu D is the ideal full-suspension mountain bike for every level — from beginners to riders looking to upgrade. 120mm of travel, a durable alloy frame and modern geometry deliver real performance without costing a fortune.
Versions in the Siskiu D range: SISKIU D7 · SISKIU DSE · SISKIU D6 · SISKIU D5
Key features
Shimano drivetrain
Shadow+ technology keeps the chain secure and running quietly so you can focus on the trail ahead.
Dropper seatpost
Essential for modern MTB — drop the saddle quickly on descents for more confidence going downhill.
Technical specifications
Frameset
- Frame
- ALX XC TRAIL FRAME
- Fork
- ROCKSHOX RECON SILVER RL 120MM TRAVEL
- Rear Shock
- ROCKSHOX DELUXE SELECT PLUS E2E: 190x45MM
- Frame Color
- BLUE - WHITE
Drivetrain
- Shifter
- SHIMANO 1x11-SPEED TRIGGER
- Crank
- 170mm, 32T
- Cassette
- SHIMANO 11-50T
- Rear Derailleur
- SHIMANO 11-SPEED
- BB
- THREADED 68/73mm
- Chain
- KMC CHAIN
- Pedal
- ALLOY CAGE PEDAL W/ REFLECTOR
Cockpit
- Saddle
- LINC VOID SADDLE
- Seatpost
- TRANZ X DROPPER 150mm
- Handlebar
- POLYGON XPERT, ALLOY
- Handlestem
- POLYGON XPERT, ALLOY
- Headset
- THREADLESS ZERO STACK HEADSET, ZS 44/28.6 | ZS 56/40
Wheel & Tire
- Wheel Set
- ALLOY DOUBLE WALL
- Wheel Size
- 27.5" / 29"
- Tire
- PERFORMANCE TIRE 27.5"x2.25" / 29"x2.25"
- Rim
- ALLOY DOUBLE WALL 584 / 622-30 32H FOR TYRE 584 / 622-54/76
- Hub
- F: SHIMANO HB-MT400 THRU AXLE 15x100mm 32H CENTER LOCK / R: SHIMANO FH-MT400 THRU AXLE 12X148mm 32H CENTER LOCK
Brakes
- Brake lever
- SHIMANO LEVER
- Brake Caliper
- SHIMANO HYDRAULIC DISC
- Rotor
- ROTOR: FRONT:180MM REAR:160MM CENTER-LOCK
Specifications may change between shipments. Please contact Spinlab to confirm the bike's configuration in Vietnam.
Frame geometry
| Specifications | S (27.5″) | M (27.5″) | M (29″) | L (29″) | XL (29″) |
|---|---|---|---|---|---|
| Height | 155-165 | 165-175 | 165-175 | 175-185 | 185-195 |
| Seat Tube Length (A) | 395 | 435 | 435 | 487 | 522 |
| Seat Tube Angle (B) | 70 | 70 | 68.7 | 68.7 | 68.7 |
| Effective Seat Tube Angle (C) | 75.5 | 75.5 | 76 | 76 | 76 |
| Head Tube Length (D) | 102 | 105 | 102 | 112 | 122 |
| Head Tube Angle (E) | 67 | 67 | 67.5 | 67.5 | 67.5 |
| Effective Top Tube (F) | 572.7 | 595.1 | 603.9 | 624.3 | 646.7 |
| BB Height (G) | 326 | 326 | 326 | 326 | 326 |
| BB Drop (H) | 27 | 27 | 47 | 47 | 47 |
| Chainstay Length (I) | 432 | 432 | 436 | 436 | 436 |
| Wheelbase (J) | 1133 | 1157 | 1165 | 1189 | 1213 |
| Reach (K) | 425 | 445 | 445 | 465 | 485 |
| Stack (L) | 571.2 | 580.4 | 606.7 | 615.9 | 625.2 |
| Standover Height (M) | 676 | 696 | 698 | 733 | 761 |
The selected size column is highlighted. Figures from Polygon Bikes.
FAQ
How do I choose a size?
Refer to the “Rider height” row in the Frame geometry table. If your height falls between two sizes, contact Spinlab for advice based on your riding position and needs.
What warranty does the bike have?
Genuine Polygon bikes distributed by Spinlab are covered by Polygon's warranty policy. Call our hotline for details of conditions and duration.
Can I upgrade components?
Yes. Contact Spinlab for advice on suitable upgrades, such as Vittoria tyres or Emume handlebar tape.
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