Lightweight & Durable Entry-Level Hardtail
The beginning of loving mountains
Expanding the CASCADE lineup, Polygon now brings its capable MTB hardtail to young riders. Built for those ready to go beyond the pavement, it pairs a lightweight AL6 alloy frame with a 100mm suspension fork and reliable disc brakes for confident control on any ride.
JUNIOR
CASCADE 20
Specification
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Frameset
FramesetForkFrame ColorDecal Color
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Drivetrain
ShifterCrankCassetteRear DerailleurBBChainPedal
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Cockpit
SaddleSeatpostHandlebarHandlestemHeadset
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Wheel & Tire
Wheel SetTireRimHubSpokes
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Brake
Brake LeverBrake CaliperRotor
Geometry & Size
| ALL SIZE | |
|---|---|
| Height (cm) | 110-125 |
| Seat Tube Length (A) | 254 10 |
| Seat Tube Angle (B) | 72 2.83 |
| Effective Seat Tube Angle (C) | 72 2.83 |
| Head Tube Length (D) | 100 3.94 |
| Head Tube Angle (E) | 70 2.76 |
| Effective Top Tube (F) | 453 17.83 |
| Bb Height (G) | 215 8.46 |
| Bb Offset (H) | -42.5 -1.67 |
| Chainstay Length (I) | 350 13.78 |
| Wheelbase (J) | 844.8 33.26 |
| Frame Reach (K) | 305 12.01 |
| Frame Stack (L) | 454 17.87 |
| Standover Height (M) | 476 18.74 |
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