Description
The Hidden Gem Among German-Made Lightweight Rims
A rare piece of New Old Stock from the “XMD309,” a lightweight disc rim crafted by the German wheel brand B.O.R. Its design strikes a perfect balance between lightness and durability, evoking the heyday of cross-country MTB.
Its simple, streamlined look—a hallmark of disc-specific designs—pairs perfectly with vintage MTBs. It’s ideal not only for building a wheel set that prioritizes a nimble ride but also for restoring or customizing 26-inch MTBs and early 29ers.
Its rarity as B.O.R. dead stock —something you hardly ever see these days—adds to its appeal. This is a model known only to connoisseurs, showcasing the unique character typical of European brands.
*This item is deadstock (unused, stored for a long period). Although unused, it may show minor scratches, scuffs, discoloration, or peeling plating resulting from storage or shipping. These do not affect the product’s performance or usability; we appreciate your understanding that they are part of the unique character of vintage parts.
[SPEC]
| Rim Size | 650b / 27.5", 29" |
| Spoke Count | 32h |
| Rim Width | 24 mm |
| Rim height | 16.8 mm |
| Compatible Tires | Tubular |
| Compatible Valve | French |
*NONmsw = Non-Machined Side Wall (no brake surface facing)
- 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.

![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_New_Old_Stock_B.O.R_Xmd309_Disc_29inch00001.jpg?v=1781426604&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc29inch00002.jpg?v=1781426616&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc29inch00003.jpg?v=1781426616&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc29inch00004.jpg?v=1781426616&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc29inch00005.jpg?v=1781426616&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_New_Old_Stock_B.O.R_Xmd309_Disc_650b00001.jpg?v=1781427244&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc650b00002.jpg?v=1781427261&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc650b00003.jpg?v=1781427261&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc650b00004.jpg?v=1781427261&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc650b00005.jpg?v=1781427261&width=800)
![[New Old Stock] B.O.R Xmd309 Disc](http://shop.circles-jp.com/cdn/shop/files/Circles-_NewOldStock_B.O.RXmd309Disc650b00006.jpg?v=1781427261&width=800)