Polygon Siskiu D5 Mountain Bike Your First Full Suspension Trail Machine The Polygon Siskiu D5 is an entry-level full suspension mountain bike designed to introduce riders to trail riding with comfort, control, and confidence. Built on Polygon’s proven Siskiu platform, it combines modern trail geometry with a capable suspension system—making...
Polygon Siskiu D5 Mountain Bike
Your First Full Suspension Trail Machine
The Polygon Siskiu D5 is an entry-level full suspension mountain bike designed to introduce riders to trail riding with comfort, control, and confidence. Built on Polygon’s proven Siskiu platform, it combines modern trail geometry with a capable suspension system—making it ideal for beginners looking to explore beyond basic off-road paths.
Whether you're tackling local trails, gravel paths, or light technical terrain, the Siskiu D5 delivers a smooth, stable, and enjoyable ride.
Key Features
Full Suspension Performance (120mm Travel)
Equipped with a Suntour XCM fork (120mm) and Suntour Raidon rear air shock, the bike absorbs bumps and trail chatter—offering improved comfort and control compared to hardtail bikes.
Modern XC Trail Geometry
Designed with a slack head angle (~67°), longer reach, and steeper seat tube angle, the D5 provides better stability on descents and efficient climbing performance.
ALX Lightweight Alloy Frame
Durable yet lightweight aluminium frame ensures reliable handling while maintaining efficiency on climbs and long rides.
Efficient Faux Bar Suspension System
Polygon’s suspension design improves traction and pedaling efficiency, allowing the bike to climb like a hardtail while maintaining rear-end comfort.
Shimano 9-Speed Drivetrain
Reliable Shimano gearing provides a wide range for climbing and cruising, making it suitable for varied terrain.
Hydraulic Disc Brakes
Shimano MT200 hydraulic brakes deliver consistent stopping power and control in all riding conditions.
Specifications
-
Frame: ALX XC Trail Alloy Frame
-
Fork: Suntour XCM, 120mm travel
-
Rear Shock: Suntour Raidon Air
-
Drivetrain: Shimano 9-speed
-
Cassette: 11–46T
-
Brakes: Shimano MT200 hydraulic disc
-
Wheel Size: 27.5”
-
Tires: 27.5” x 2.25”
-
Use: XC trail, beginner MTB riding
Why Choose the Polygon Siskiu D5?
The Siskiu D5 is one of the most accessible full suspension MTBs in the market, offering real trail capability at an entry-level price. It’s designed for riders who want more comfort and confidence than a hardtail, without stepping into high-end pricing.
Ideal For
- Beginner mountain bikers
- XC trails and light technical riding
- Riders upgrading from a hardtail
- Casual weekend trail exploration
