Chat ZaloLightweight alloy frame
A hydroformed alloy frame made in Polygon's own factory: light, durable and easy to handle.
Polygon · Cross Country
Polygon CASCADE 3
An everyday leisure mountain bike
- MY26
- XC hardtail
- ALX alloy frame
- Shimano 1x8
- Hydraulic disc brakes
Retail price10.300.000₫
- Genuine Polygon bike, distributed by Spinlab
- Free shipping on orders from 2,000,000₫
- Free size advice via our hotline
An everyday leisure mountain bike
The 2026 Cascade 3 is an everyday hardtail for city riding and easy trails: ALX alloy frame, SR Suntour XCE 28 fork with 100mm travel, a 1x8-speed drivetrain with Shimano Altus shifter and 11-45T cassette, hydraulic disc brakes and 2.25" tyres. Size XS has 27.5" wheels; sizes S, M, L and XL have 29" wheels.
Versions in the Cascade range: CASCADE 5 · CASCADE 4 · CASCADE 3
Key features
100mm suspension fork
An SR Suntour fork with 100mm travel smooths out dirt roads, gravel and city potholes.
Disc brakes
Consistent braking power even in the wet, for confident descents.
29" wheels (size XS: 27.5")
Sizes S to XL roll smoothly over obstacles on 29" wheels; size XS uses 27.5" wheels to suit smaller riders.
Technical specifications
Frameset
- Frame
- ALX XC SPORT FRAME
- Fork
- SUNTOUR XCE 28 100mm TRAVEL
- Size
- XS (27.5") / S, M, L, XL (29")
- Frame Color
- CREAM / RED
- Decal Color
- WHITE - BLACK
Drivetrain
- Shifter
- SHIMANO ALTUS SL-M315, 1x8-SPEED TRIGGER
- Crank
- PROWHEEL C10Y, 36T
- Cassette
- SHIMANO CS-HG400, 11-45T
- Rear Derailleur
- SHIMANO ESSA RD-U2000
- BB
- SQUARE BB, 68mm
- Chain
- KMC Z-8.3
- Pedal
- ONE PIECE PP BODY
Cockpit
- Saddle
- BLACK STEEL ø7mm
- Seatpost
- ALLOY SEATPOST 27.2x350mm
- Handlebar
- POLYGON SPORT W: 700MM, B: 31.8MM, R/D: 20MM
- Handlestem
- POLYGON SPORT E: 40MM, B: 31.8MM, R/D: 7
- Headset
- ZERO STACK W/ SEALED BEARING, ZS 44/28.6 | ZS 44/30
Wheel & Tire
- Wheel Set
- ALLOY DOUBLE WALL
- Wheel Size
- 27.5" (XS) / 29" (S–XL)
- Tire
- 27.5" (XS) / 29" (S–XL) x 2.25"
- Rim
- ALLOY DOUBLE WALL
- Hub
- F: ALLOY, 100mm 32H QR / R: ALLOY, 135mm 32H QR
- Spokes
- 27.5": 14G STAINLESS NDS:270mm / DS:272mm · 29": 14G STAINLESS NDS:290mm / DS:292mm, 12mm NIPPLE BRASS
Brakes
- Brake lever
- HYDRAULIC DISC BRAKE
- Brake Caliper
- HYDRAULIC DISC BRAKE
- Rotor
- 6-BOLTS 160mm
Specifications may change between shipments. Please contact Spinlab to confirm the bike's configuration in Vietnam.
Frame geometry
| Specifications | XS (27.5″) | S (29″) | M (29″) | L (29″) | XL (29″) |
|---|---|---|---|---|---|
| Height | 145-155 | 155-165 | 165-175 | 175-185 | 185-195 |
| Seat Tube Length (A) | 360 | 390 | 430 | 460 | 491 |
| Seat Tube Angle (B) | 75 | 75 | 75 | 75 | 75 |
| Effective Seat Tube Angle (C) | 75 | 74 | 75 | 75 | 75 |
| Head Tube Length (D) | 110 | 90 | 95 | 100 | 110 |
| Head Tube Angle (E) | 68 | 68 | 68 | 68 | 68 |
| Effective Top Tube (F) | 538 | 566 | 585 | 604 | 624 |
| BB Height (G) | 310 | 304 | 303 | 304 | 304 |
| BB Drop (H) | -45 | -69 | -69 | -69 | -69 |
| Chainstay Length (I) | 440 | 455 | 455 | 455 | 455 |
| Wheelbase (J) | 1085 | 1142 | 1142 | 1161 | 1182 |
| Reach (K) | 380 | 420 | 420 | 440 | 453 |
| Stack (L) | 596 | 624 | 624 | 629 | 638 |
| Standover Height (M) | 684 | 737 | 737 | 759 | 780 |
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.
