Luggage rack for electric bicycles. Seat post clamps are not compatible between different models of e-bikes. Please select the model that corresponds to your e-bike. Fast Shipping from EU Warehouse: We prioritize shipping from our EU warehouse, ensuring a quicker delivery for customers in the region. If the item is out of stock in the EU, it will be shipped from China, with an estimated shipping time of 10-15 days. If you encounter a shortage, please communicate with us.