Size Guide
Description
Specifications
Geometry
Size Guide
Assembly
The Cascade 4 is a capable XC sport mountain bike built for new riders ready to explore more challenging trails. With a reliable Shimano CUES 9-speed drivetrain, Suntour XCM fork, and hydraulic disc brakes, it delivers confident control and durability for weekend adventures.
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
Polygon’s ALX XC aluminium 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
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.
DURABLE FRONT SUSPENSION
The SR Suntour XCM32 is a dependable suspension fork that delivers great value. With its coil spring system, preload adjustment, and stiff 32 mm stanchions, it provides confident handling and smooth performance on cross-country rides or light trails. Often found on more expensive bikes, the XCM32 stands out at this price point.
SHIMANO CUES DRIVETRAIN
Shift smoothly with Shimano CUES 9-speed. A wide 11–46T cassette makes climbing easier, while its chain stabilisation design reduces bounce on rough trails. Reliable triggers change gears quickly, so you can focus on riding and exploring with confidence everywhere.
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.
ROBUST & VERSATILE WHEELSET
Tough double-wall alloy rims paired with 2.25-inch tyres 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.
We reserve the right to modify product specifications and details without prior notification.
Length measurements are provided in millimeters and degrees, unless specified otherwise.
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
| Size | Age | Range (cm) | Range (ft & in) |
|---|---|---|---|
| 12" (Balance) | 2 - 4 | 80 - 100 | 2'6" - 3'1" |
| 16" | 4 - 7 | 100 - 120 | 3'4" - 4'0" |
| 20" | 7 - 9 | 120 - 135 | 4'0" - 4'5" |
| 24" | 9 - 11 | 135 - 145 | 4'5" - 4'9" |
If you are outside of the size range or unsure of the right fit for you, give us a call or come in and visit your local store to talk about your best options.
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Polygon Cascade 4 - Mountain Bike MY26. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Description
The Cascade 4 is a capable XC sport mountain bike built for new riders ready to explore more challenging trails. With a reliable Shimano CUES 9-speed drivetrain, Suntour XCM fork, and hydraulic disc brakes, it delivers confident control and durability for weekend adventures.
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
Polygon’s ALX XC aluminium 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
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.
DURABLE FRONT SUSPENSION
The SR Suntour XCM32 is a dependable suspension fork that delivers great value. With its coil spring system, preload adjustment, and stiff 32 mm stanchions, it provides confident handling and smooth performance on cross-country rides or light trails. Often found on more expensive bikes, the XCM32 stands out at this price point.
SHIMANO CUES DRIVETRAIN
Shift smoothly with Shimano CUES 9-speed. A wide 11–46T cassette makes climbing easier, while its chain stabilisation design reduces bounce on rough trails. Reliable triggers change gears quickly, so you can focus on riding and exploring with confidence everywhere.
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.
ROBUST & VERSATILE WHEELSET
Tough double-wall alloy rims paired with 2.25-inch tyres 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.
Specifications
We reserve the right to modify product specifications and details without prior notification.
Geometry
Length measurements are provided in millimeters and degrees, unless specified otherwise.
Size Guide
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
Assembly
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Polygon Cascade 4 - Mountain Bike MY26. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Our Polygon Cascade 4 - Mountain Bike MY26 includes the industry-leading Reid Warranty: lifetime on frame/rigid forks and 2 years on non-consumable parts. Shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.
Home Delivery
Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.
Buy One, Plant One
Since January 2020 we have worked with not-for-profit reforestation partners to donate enough money to pay a local person a fair wage to grow, plant and guard to maturity 1 native tree for every bike we sell.
We've now planted more than 400,000 trees and counting!
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