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2026 Polygon

Cascade 20

A 20″ aluminum frame mountain youth bike with mid-range components and tektro mechanical disc brakes.
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Manufacturer Price

$399$499
Price History
FrameAluminum
SuspensionHardtail, 40mm
ForkAluminum
Wheels20″ Aluminum
Drivetrain1 × 7
GroupsetTourney
BrakesTektro Mechanical Disc
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$399

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Cascade 20

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Insights
Ride Feel

Based on frame geometry and build specs.

Handling
nimblestable
Cascade 20
Other Mountain Youth bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

21 km/h

Cascade 20

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Price History
Geometry
Specs
Build
Frame

AL6 Aluminium Rigid Frame, Internal Cable Routing (Front), IS Disc Mount 160mm, Threaded BSA 68mm Bottom Bracket, Rear Spacing 135mm (M10), 31.8mm Seat Clamp, Kickstand Mount (Bolt-On Centre Chainstay)

BB Standard: BSA, 68mm, Threaded

Tire Clearance: 1.95"

Fork

Suspension Fork, 40mm Travel, Coil Spring, Alloy Crown & Lowers, Straight 1-1/8" Threadless Steerer, Post Mount Disc 160mm, QR 9x100mm Spacing

Travel: 40mm

Spring Type: Coil

Bottom Bracket

BSA, 68mm, threaded

Headset

Zero Stack Headset, ZS44/28.6 | ZS44/30, Caged Bearings

Stem

Alloy Stem, 40mm Length, 25.4mm Clamp

Handlebar

Steel Handlebar, 560mm Width, 25.4mm Clamp, 7° Rise, 6° Backsweep

Saddle

Youth Saddle, Steel Rail 7mm

Seatpost

Steel Seatpost, 27.2x300mm

Type: Rigid

Pedals

One-Piece PP Body Pedals

Grips

Standard Rubber Grips

Groupset
Rear Derailleur

Shimano Tourney TY200, 7-Speed

Crank

30T

Shifters

Shimano Tourney Revo Shifter, 1x7-Speed

Cassette

7-Speed Freewheel, 14–28T

Chain

Meile M70

Brakes

Front: Tektro M280 Mechanical Disc Brake, Rear: Tektro M280 Mechanical Disc Brake

Type: Tektro Mechanical Disc

Wheels
Rims

20" Alloy Double Wall Rims, 32H, 20mm Height, 21mm Internal Width

Front Hub

Alloy Hub, 32H, QR 9x100mm

Rear Hub

Alloy Hub, 32H, QR 10x135mm

Tires

Kenda K1047, 20x1.95"

Disc Rotors

Tektro TR160-52, 160mm Front & Rear

Accessories
Stand

Included

Rider Notes
Riders Also Viewed

First added 9 May

Last updated 30 May