Is the New Polygon Siskiu T Actually Better?

In this video, I compare the 2021 vs 2025 Polygon Siskiu T side-by-side to show how this trail bike has evolved over three generations, what actually changed on the new frame, and whether those updates really matter on trail. This isn’t just a spec comparison! I’ve ridden both bikes hard, and I break down what actually affects ride feel, climbing, descending, long-term value, and why the newest Siskiu T feels so different... even though the suspension numbers look similar on paper. If you’re shopping for a budget-friendly full-suspension trail bike and trying to decide between an older deal or the newest model, this video will help you make the right call. What this video covers: • Why the Siskiu T became so popular in the first place • How the 2021 redesign changed everything • The biggest weaknesses of the older bike • What Polygon actually updated for 2025 • Wheel weight, geometry, stiffness, and UDH compatibility • Which Siskiu T makes the most sense for your money Next video to watch: My full breakdown of every 2025 Polygon Siskiu T (T6 through T0) so you can decide which build actually makes sense for your riding and budget: https://youtu.be/H1dSWgfwD0I If this video helped, hit like, subscribe, and drop a comment letting me know which version you’d choose, old or new? #PolygonSiskiu #TrailBike #MountainBikeReview #MTB #FullSuspension #BudgetMTB #TrailBikeComparison Affiliate Links and Discounts: Polygon T8 On Sale Now https://bikesonline-usa.sjv.io/YRX07J Trail One Components 15% Discount Code - HoffSupportsTheTrails https://trailone.bike/?ref=yHQiW-iMc3Gyfr KALI Helmets https://www.kaliprotectives.com Code: KALIJH25 KETL Mountain Bike Clothing (Everyday Clothing, No Giant Fox Logo) https://ketlmtn.com/?ref=um6fa30n CrankBrothers, Discount Code: JARED15 Shopify Link (code auto-applied at checkout): https://www.crankbrothers.com/discount/JARED15 SMITH Goggles (Get Chroma-Pop Lens) https://smithoptics.pxf.io/55KYjN Join the channel! https://www.youtube.com/channel/UC4xzsy5fZXvtzuCONBNQdJQ/join 00:00 – Old vs New Polygon Siskiu T: Is the Upgrade Worth It? 00:35 – Why This Polygon Siskiu T Comparison Matters 01:12 – The Evolution of the Polygon Siskiu T (2017–2021) 02:45 – 2021 Siskiu T Geometry Explained (Why It Rode So Well) 04:03 – 2025 Polygon Siskiu T: What Actually Changed 05:46 – Frame Color & Graphics Polygon Siskiu T 07:28 – New Rear Triangle & UDH Explained 10:17 – The Biggest Weakness of the 2021 Siskiu T (Wheels) 10:50 – Wheel Weight Comparison: Old vs New Siskiu T 12:48 – Price Comparison: 2021 vs 2025 Siskiu T 13:32– Which Polygon Siskiu T Should You Buy?