WARP 9 40T aluminium rear sprocket for SURRON Ultra Bee

The 40-tooth aluminium sprocket lengthens the SURRON Ultra Bee’s gearing, suiting riders who prefer lower motor speed and a potentially higher top speed. Acceleration is slightly reduced compared with the original 46-tooth sprocket.

CNC-made from high-strength 7075-T6 aluminium, it combines strength and low weight. Black anodising protects against corrosion and provides a quality finish. Designed for the standard 520 chain, it fits the original mounting points directly.

Shipping costs at a glance

PKS Bikes GmbH ships from Germany. Shipping costs depend on the items in your cart and the delivery address. All amounts in the table are in euros.

* Available delivery countries vary by shipping method. Free standard shipping from €50.00 applies in Germany to items in the general shipping profile. Shipping charges may be combined for orders containing items from multiple shipping profiles. Available shipping methods and total costs are displayed at checkout before you complete your order.

Delivery times and availability

Estimated delivery times depend on the item, stock, delivery address and shipping method. For tyres, the shipping rate states 2–4 business days within Germany and 2–6 business days internationally. For pre-orders, the delivery information shown on the product applies.

Deliveries to Switzerland

Freight shipping of a boxed bike costs €220.00. The customs-clearance services included in the rate are specified in the selected shipping option. Additional import charges may apply, particularly Swiss import VAT.

Collection in Dreieich

If collection is offered at checkout, you can collect your order from PKS Bikes GmbH, Maienfeldstraße 15, 63303 Dreieich. Please wait for the collection confirmation and arrange the time with us.

For questions about shipping or collection, contact our customer service.

Customer enquiries: support@pks-store.com