
The Polygon Cascade 5 is a mountain bike, built on an aluminium frame, listed at $749.99 at BikesOnline. An off-road bike for trails, with grippy tyres and trail-ready geometry.

same price · 8-speed vs 10-speed

$29 more · 8-speed vs 10-speed

$49 more · 9-speed vs 10-speed

$50 more · 9-speed vs 10-speed · 120 mm fork vs 100 mm
Compare the Cascade 5 with the two closest side by side
Compared with the 25 similar mountain bikes on BikeFinder priced $500 to $1,000, using each bike's published specs and the price shown on its page.
Enter your height to see the size Polygon recommends.
| Size | Rider height | In feet |
|---|---|---|
| XS (27.5") | 145 to 155 cm | 4 ft 9 in to 5 ft 1 in |
| S (27.5") | 155 to 165 cm | 5 ft 1 in to 5 ft 5 in |
| M (29") | 165 to 175 cm | 5 ft 5 in to 5 ft 9 in |
| L (29") | 175 to 185 cm | 5 ft 9 in to 6 ft 1 in |
| XL (29") | 185 to 195 cm | 6 ft 1 in to 6 ft 5 in |
Rider heights from Polygon's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (BikesOnline product page (specification list and geometry table)), verified 2026-11-03. This is a specification analysis, not a physical ride review.
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