Siggs Hub Overhaul (Grooved Ball Bearing) Rear Wheel | Pony GTX 503

With the Siggnature hub overhaul for the rear hub of the Pony GTX with a Sachs 503 engine, you’ll receive a rear wheel hub that has been completely rebuilt—precise, durable, and designed for reliable performance. This isn’t just a partial repair—it’s honest workshop craftsmanship with a focus on safety and durability.

This offer is for anyone who wants to have their Pony GTX professionally restored or who wants a flawlessly functioning rear hub as part of a rebuild. The rear wheel, in particular, is subject to the combined forces of drive, braking torque, and riding load, which is why the condition of the bearings and the brake is crucial for smooth operation and riding stability.

At the heart of the overhaul is the professional replacement of the old bearings with new, properly matched, high-quality industrial deep-groove ball bearings. The bearing seats are inspected and prepared, and the new bearings are precisely positioned and carefully installed. This results in play-free, smooth operation with significantly improved durability. In addition, all other relevant components are replaced with precisely matching new parts.

Furthermore, compatible brake shoes are installed during every hub overhaul to ensure consistent, powerful, and easily modulated braking performance. After the overhaul, the rear wheel hub delivers smooth operation, precise function, and reliable braking performance. This hub overhaul creates a technically sound, durable foundation for safe and worry-free use.

Service Process: You can follow the exact process in the video featuring Sigg himself. Additionally, your package includes a detailed step-by-step guide straight from the workshop to take home with you.

Note: The wheel axle set included in the overhaul service fits not only the Pony GTX 503 moped but also the first Pony GTX models with the Beta 521 engine. These early models were also shipped from the factory without industrial bearings. It wasn’t until later model years that grooved ball bearings came standard.

An awesome custom product straight from the Siggnature workshop.