Rubber Cone Spring (dry)
The Dry Cone Rubber Spring is the heart of the Moulton Monosphere rear suspension system, providing the distinctive ride quality that has become synonymous with many classic Moulton bicycles. Moulded from durable rubber, the hollow cone operates in both compression and shear, producing a smoothly progressive spring rate that delivers comfort, control, and predictable handling across a wide range of riding conditions.
As a replacement moulded rear spring, this component restores the performance and compliance of the original suspension system, helping to preserve the comfort, efficiency, and unique character of your Moulton bicycle.
Compatibility: TSR, SST, APB, AM, Jubilee, XTB.
Please note:
- Pilot holes for the securing screws are not pre-drilled and must be drilled during installation. Most models use four securing screws (included), although some use only two, and hole positions are not consistent between models.
- On some older bicycles, the forward edges of the spring may require minor filing to allow the spring to sit flush within the spring shell.
- Fitting instructions are supplied.
The current production lead time for the Rubber Cone Spring (dry) is:
Frequently Asked Questions
If you're unsure which part you need, please contact us before ordering. Let us know your Moulton model and, if possible, the frame number or a photograph of your bike and the existing part, and we'll be happy to help identify the correct replacement.
Unused spare parts can be returned in accordance with our returns policy. To avoid delays or unnecessary returns, we recommend checking compatibility carefully or contacting us for advice before placing your order.
Where fitting instructions are required, these will be supplied or noted in the product description. If no instructions are included, we recommend installation by a competent cycle mechanic if you are unsure about fitting the part.