Polygon’s goal is to create bikes for everyone to ride. This includes creating quality lightweight bikes that are safe for younger riders. Polygon Youth bikes are carefully designed with geometry for smaller riders and high-quality parts that are scaled down to fit smaller riders. The Polygon Youth series is dedicated to create bikes for every child to have an enjoyable riding experience and spark future adventures on their bikes.
JUNIOR 20" 120-130
RELIC 20
Specification
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Frameset
FramesetForkSizeFrame ColorDecal Color
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Drivetrain
ShifterCrankCassetteRear DerailleurBBChainPedal
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Cockpit
SaddleSeatpostHandlebarHandlestemHeadset
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Wheel & Tire
Wheel SetWheel SizeTireRimHubSpokes
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Brake
Brake LeverBrake CaliperRotor
Geometry & Size
| All Size | |
|---|---|
| Height (cm) | 120-130 |
| 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) | 450 17.72 |
| Bb Height (G) | 237 9.33 |
| Bb Offset (H) | 20 0.79 |
| Chainstay Length (I) | 370 14.57 |
| Wheelbase (J) | 864.7 34.04 |
| Frame Reach (K) | 304.9 12 |
| Frame Stack (L) | 446.6 17.58 |
| Standover Height (M) | 475.5 18.72 |
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