Polygon Cascade 4 - Mountain Bike [New] - hardtail mountain bike
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Polygon Cascade 4 - Mountain Bike [New] - hardtail mountain bike product image 7
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Polygon Cascade 4 - Mountain Bike [New] - hardtail mountain bike product image 10

Details

ADVENTURE STARTS HERE

ADVENTURE STARTS HERE

The Cascade 4 is ready to take your weekend rides further — from local bike paths to exploring beginner and intermediate trails. A reliable Shimano CUES 9-speed drivetrain, Suntour XCM32 suspension fork, and hydraulic disc brakes give you confident control, smooth shifting, and dependable stopping power, whether you’re cruising or climbing.

LIGHTWEIGHT ALLOY

LIGHTWEIGHT ALLOY

Polygon’s ALX XC aluminum frame is tough yet lightweight, built for durability and comfort on every ride. Internal cable routing keeps things sleek and protected, while clean tube shaping gives the Cascade 4 a modern, premium look without the premium price tag. It’s the perfect balance of strength, style, and everyday rideability.

COMFORTABLE GEOMETRY

COMFORTABLE GEOMETRY

The Cascade 4’s stable, upright geometry gives you comfort for long rides and control when the trail gets twisty. Balanced steering and easy maneuverability make it just as at home weaving through city streets as it is rolling along dirt tracks — perfect for riders wanting confidence on varied terrain.

100MM SUSPENSION FORK
100MM SUSPENSION FORK The Suntour XCM32 fork softens bumps and roots to keep your hands fresh. With 100mm travel and easy preload adjustment, it adds comfort and control on rough paths, helping new riders stay confident as terrain changes and rides get longer.
SHIMANO CUES DRIVETRAIN
SHIMANO CUES DRIVETRAIN Shift smoothly with Shimano CUES 9-speed. A wide 11–46T cassette makes climbing easier, while its chain stabilization design reduces bounce on rough trails. Reliable triggers change gears quickly, so you can focus on riding and exploring with confidence everywhere.
HYDRAULIC BRAKES
HYDRAULIC BRAKES Clarks Clout hydraulic disc brakes deliver predictable stopping you can trust. Light lever feel works for smaller hands, while 160mm rotors provide reliable power in wet or dry conditions, helping you stay in control on descents, corners, and paths.
VERSATILE WHEELSET
VERSATILE WHEELSET Tough double-wall alloy rims paired with 2.25-inch tires deliver stability, grip, and comfort. Confident cornering, smoother rolling on pavement, gravel, and dirt, plus durable construction that shrugs off knocks, keeps you riding farther with fewer worries about maintenance or reliability.
Any questions? Chat to our friendly team
Specs
frameset
FrameALX XC, Threaded BSA 68 mm, Internal Brake & Shifter Routing, 44/44 mm Head Tube ID, M10x135 mm Rear Hub Spacing
HeadsetZero Stack w/ Sealed Bearing, ZS44/28.6 | ZS44/30
suspension
ForkSuntour XCM32, Coil Spring, 100 mm Travel, Preload Adjust, Alloy Straight Steerer, 9x100 mm QR, Disc Brake Post Mount 160mm
drivetrain
Rear derailleurShimano CUES RD-U4000-GS, 9-Speed
ShifterShimano CUES SL-U4000, 9-Speed, Trigger
CrankSamox SAC40-018B-36NS
Chainring36T
CassetteCassette Shimano CUES CS-LG300, 9-Speed, 11-46T
ChainKMC X-Glide
brakes
Front brakeClarks Clout Hydraulic Disc Brake, 6-Bolt, 2-Piston
Rear brakeClarks Clout Hydraulic Disc Brake, 6-Bolt, 2-Piston
RotorClarks 160mm
wheels
Front hubSolon DH-802 F, 9x100 mm, 32H, Quick Release, 6-Bolt Disc
Rear hubSolon DH-802 R, 10x135 mm, 32H, Quick Release, 6-Bolt Disc
RimPolygon Alloy Double Wall, 27.5"/29" , 20 mm Height, 21 mm Internal Width, 32H
TyreDeli SA-281, 27.5x2.25" / 29x2.25"
Max tyre size27.5x2.25" / 29x2.25"
contact points
HandlebarPolygon Steel, 680 mm Width, 31.8 mm Clamp Bore, 40 mm Rise, 8° Bend
SaddlePolygon Black, Steel Rail ø7 mm
SeatpostPolygon Alloy, 27.2 x 350 mm, 0 mm Offset
StemPolygon Alloy, 45 mm Extension, 31.8 mm Clamp Bore, 3° Rise
PedalsOne-Piece PP Body
weight
Bike weight34.36 lbs ( Size M )
Geo

  XS (27.5") S (27.5") M (27.5") L (27.5") S (29") M (29") L (29") XL (29")
Rider Height (ft in / cm) 4'9"–5'1" 5'1"–5'5" 5'5"–5'9" 5'9"–6'1" 5'1"–5'5" 5'5"–5'9" 5'9"–6'1" 6'1"–6'5"
(A) Stack 684 704 734 756 709 737 759 781
(B) Reach 380 400 420 440 400 420 440 453
(C) Head Tube Angle 68° 68° 68° 68° 68° 68° 68° 68°
(D) Head Tube Length 110 115 120 125 90 95 100 110
(E) Seat Tube Angle 75° 75° 75° 75° 75° 75° 75° 75°
Seat Tube Angle Effective 75° 75° 75° 75° 75° 75° 75° 75°
(F) Seat Tube Length 360 390 430 460 390 430 460 490
(G) Top Tube Effective 539 561 582 603 566 585 604 624
(H) Bottom Bracket Height 310 310 310 310 304 304 304 304
(I) Bottom Bracket Offset -45 -45 -45 -45 -69 -69 -69 -69
(J) Chainstay 440 440 440 440 455 455 455 455
(K) Wheel Base 1085 1108 1129 1151 1122 1142 1161 1182
(L) Standover Height 684 704 734 756 709 737 759 781

* All lengths in mm

Build

Assembly Video Cascade

Your bike needs minor assembly before riding; use the tools and videos included.

As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.

Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.

  1. Unboxing Your Bike

  2. Dial In Your Bike Fit

  3. Dial In Your Tyre Pressures

  4. Pre-Ride Check