Description
Handmade ATBs featuring the cruiser style
Retrotech Cycles, with a workshop in Napa, California, is a handmade bicycle manufacturer based on the cruiser style, which can be said to be representative of American bicycle culturE The owner-builder, Curtis Inglis, is a self-taught, fully custom handmade bike builder, who has built his bikes based on the information he has gained through his years of experience as a builder.
Of course, he is also a passionate cyclist who organizes single speed championships in his hometown of Napa, and from both sides of the equation, he is constantly seeking to create the most suitable bike for the user's goals and objectives. He is also a supreme personality who strives to share the beauty of handmade bikes with as many people as possible through his semi-custom production.
This all-terrain frame is built with the new standard of 650B tires and a basic idea of fun on trails. The head tube is 44mm to accommodate the latest tapered forks, and the end is 135mm in basic stylE The components can be replaced to get a feel for the high quality of a handmade bikE
The short rear back and surprisingly light coggy weight, which Curtis himself arrived at by riding the trails of Napa, are solid proof that steel bikes are not doomed.
Handmade in Napa, California
SPEC & PHOTO
| Funduro MTB Frame | |
| Size : | Top Tube / 540mm (C-C) |
| Seat Tube / 410mm (C-C) | |
| Chain Stay : | 422mm (C-C) |
| Feature | 44mm Head Tube / PF30-BB |
| Color : | Magma Black |
| Price : ¥291,000(excl. tax) | Price : ¥291,000 |
- Orders are shipped within 1–2 business days after payment is confirmed. Orders placed by 10:00 AM are generally shipped the same day.
- Messenger delivery is available within Nagoya City only (excluding complete bikes and framesets).
- We ship every day from Monday through Sunday, except on temporary closure days.
- Shipping destinations: throughout Japan and worldwide.
- Shipment may be delayed depending on credit card processing. If you would like to request a delivery date or time, please add a note in your cart.
- All orders are shipped from Circles.
- For damage or loss during transit, please contact the carrier.
Complete Bike Shipping within Japan
- A shipping fee of ¥9,900 (tax included) applies to complete bikes. Additional charges may apply for Okinawa and remote islands.
- After purchase, we perform a final inspection before shipping. Please allow 1–2 weeks in some cases.
- For packing, some parts may be removed. We strongly recommend having the bike reassembled and checked by your local bicycle shop before riding.
- We will contact you by email with delivery details.
- Products are also sold in-store, so availability may change before the order is finalized.
Frameset Shipping within Japan
- Flat-rate shipping within Japan: ¥5,500 (tax included). Additional charges may apply for Okinawa and remote islands.
- Shipping rates for OMNIUM framesets and complete bikes differ.
- We will contact you by email with delivery details.
- Facing and tapping preparation for framesets purchased from Circles is available at no additional charge. Details will be provided after purchase.
- Headset and bottom bracket installation are also available for an additional labor fee. Please contact us if required.
Custom & Stock Wheel Shipping within Japan
- A shipping fee of ¥2,000 (tax included) applies. Additional charges may apply for Okinawa and remote islands.
- Stock wheels undergo a final inspection by a mechanic before shipping. Please allow approximately 3 business days for dispatch.
For international orders, shipping costs vary by destination. Please check the amount shown at checkout.





