Do not buy a Polygon if you expect any warranty or hardware support
If you are considering buying a Polygon bike from Bikes Online USA, be warned: if a single proprietary bolt breaks, your multi-thousand-dollar bicycle might become a useless paperweight. I own a 2021 Polygon Siskiu N9. In late 2025, an upper linkage bolt broke. I reached out to Bikes Online (US) for a replacement part. What followed was a 4-month-long customer service nightmare: Month 1-2: I was promised a "take-off" bolt from a warranty frame. They never sent it. Month 2-3: They finally created an order for a replacement part, only to send me the wrong model's bolts (Vander N), which didn't fit. Month 3-4: They assured me they were checking incoming Polygon shipments, inspecting warehouse frames, and even "meeting directly with Polygon HQ" to solve the issue. The Conclusion: After 4 full months of back-and-forth, they simply emailed me to say the 2021 model is "discontinued," the parts are "depleted," and they can no longer help. Their solution? A $100 store credit to a website that doesn't carry the parts required to keep my bike running. Meanwhile, the exact bolt set I need remains in stock on the Bikes Online Australia website, but because the US division operates separately, they refused/were unable to assist in sourcing it. Customer service representative Jeredi was polite at first, after a few months he stopped answering emails, and closed my opened ticket with no resolution, the company's supply chain management and support for 4-year-old bikes is non-existent. A frame shouldn't be obsolete in 4 years because a direct-to-consumer brand can't stock basic hardware. Buy elsewhere if you want long-term support for your bike.