Polygon Cascade 3 - Mountain Bike [New] - hardtail mountain bike
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Polygon Cascade 3 - Mountain Bike [New] - hardtail mountain bike product image 7
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Polygon Cascade 3 - Mountain Bike [New] - hard tail mountain bike product image 9

Details

ADVENTURE STARTS HERE

ADVENTURE STARTS HERE

The Cascade 3 is built for everyday riders who want a bit more from their bike — more comfort, more control, and more freedom to explore. Whether you're sticking to bike paths, cutting through the park, or tackling light trails, its wide tires, front suspension, hydraulic disc brakes, and simple 8-speed drivetrain make every ride smoother, easier, and more fun.

LIGHTWEIGHT ALLOY

LIGHTWEIGHT ALLOY

Polygon’s ALX aluminum frame hits the sweet spot between strength, weight, and ride comfort — giving you performance that’s usually reserved for higher-end bikes. Internal cable routing and clean tube shaping give it a modern, premium look without the premium price tag. Tough, lightweight, and ready to roll.

COMFORTABLE GEOMETRY

COMFORTABLE GEOMETRY

The Cascade 3 uses stable, upright geometry that puts you in a comfortable and controlled riding position — ideal for everything from bike paths to light trail rides. Its frame balances predictable steering with easy maneuverability, making it a great fit for riders who want both comfort and confidence on varied terrain.

100MM FRONT SUSPENSION
100MM FRONT SUSPENSION The SR Suntour XCE28 front suspension helps absorb bumps and rough surfaces, giving you more control and comfort on bike paths, gravel, or light trails. Preload adjustment lets you fine-tune the feel based on your weight or riding style.
SHIMANO ESSA DRIVETRAIN
SHIMANO ESSA DRIVETRAIN The updated Shimano ESSA 1x8 drivetrain offers reliable, intuitive shifting with a wide 11–45T cassette for tackling climbs or cruising with ease. With just one shifter to manage, it keeps things simple, smooth, and focused.
HYDRAULIC DISC BRAKES
HYDRAULIC DISC BRAKES Clarks hydraulic disc brakes give you smooth, reliable stopping power in all conditions—even in the rain. They’re easy to control and require less hand effort than mechanical brakes, making them great for new and returning riders.
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 Sport Alloy Frame, Internal Routing, IS Mount, QR Dropouts, 135mm Rear Spacing
HeadsetZero Stack with Sealed Bearings, ZS 44/28.6 | ZS 44/30
suspension
ForkSR Suntour XCE28, 100mm Travel, Coil Spring, Preload Adjuster, 9x100mm QR, Post Mount
drivetrain
Rear derailleurShimano ESSA ERD-U2000, 8-Speed
ShifterShimano Altus SL-M315, 8-Speed Trigger
CrankProwheel CY10, 170mm
Chainring36T
CassetteShimano ESSA CS-HG400, 11-45T, 8-Speed
ChainKMC Z-8.3
brakes
Front brakeClarks Clout Hydraulic Disc, 2-Piston
Rear brakeClarks Clout Hydraulic Disc, 2-Piston
RotorClarks 160mm, 6-Bolt
wheels
Front hubSolon DH-802 F, 9x100mm Quick Release, 32H
Rear hubSolon DH-802 R, 10x135mm Quick Release, 32H
RimPolygon Alloy Double Wall, 21mm Inner Width, 32H
TyreDeli SA-281, 27.5/29” x 2.25”
contact points
HandlebarPolygon Steel, 680mm Width, 40mm Rise, 8° Back Sweep
GripsPolygon Standard Rubber Grips
SaddlePolygon Black Saddle, Steel Rails
SeatpostPolygon Alloy, 27.2mm x 350mm, 0mm Offset
StemPolygon Alloy, 45mm Extension, 3° Rise, 31.8mm Clamp
PedalsOne-Piece PP Platform
weight
Bike weight33.7lbs (Size L)
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) 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