FAQ

Each engine model takes about 4–5 days to complete, including drying and curing time.
Every step — 3D printing, sanding, painting and aging — is carefully done by hand.

In-stock items arrive within 2–3 days of your order.
Out-of-stock items arrive within 1–2 weeks of your order.
For custom orders, timing depends on the build, so please get in touch to discuss.
*Times may vary slightly during busy periods.

Yes, we ship anywhere in the world.
Shipping costs vary depending on the region. They will be calculated automatically when you enter your shipping address on the cart screen.

Each model is about 12 cm tall × 8 cm wide × 5.5 cm deep.
It weighs about 100 g — roughly half the weight of a smartphone.
It fits in the palm of your hand, perfect for displaying on your desk or in your garage.

Every order is carefully packed before shipping, but if your item is damaged in transit,
please contact us with photos within 30 days of delivery. We will cover the return shipping and issue a full refund.

Yes, we offer free gift wrapping.
When placing your order, please write "I would like gift wrapping" in the comments section.

Yes! We'll build it to match your own bike or the specs you have in mind.
You can find out more here!

No special maintenance is required.
If you are concerned about dust, gently brush it off with a soft brush or compressed air.
We recommend displaying it away from direct sunlight.

Yes. We accept returns for any reason within 30 days of delivery. If you are not satisfied once you see the item in person, we will give you a full refund.

Please make sure your return meets the following conditions:

You contact us within 30 days of delivery
The item is unused and free of damage or stains
All included items (box, instructions, etc.) are complete

Please note that custom-made items and 3D CAD models (digital products) cannot be returned. For returns due to customer preference, return shipping is the customer's responsibility.

If your item is defective, damaged in transit, or not what you ordered, please contact us within 30 days of delivery. We will cover the return shipping and issue a full refund.

We accept credit cards (Visa, Mastercard, AMEX, JCB),
PayPal, Shop Pay, PayPay, Merpay, and konbini (convenience store) payments.