Description
The Backbone is a bomber
The Backbone is an extremely rugged 27.5" mountain bike rim with a particularly wide internal width of 32mm. Like other models where durability is important, it uses an asymmetrical rim design that improves spoke tension balance by up to 30%, increasing wheel stiffness, strength, and longevity.
For general trail use, the rim profile of this backbone is interpreted as the most reliable and balanced construction, especially with the 32mm inner width, which makes it compatible with many trail tires.
[SPEC]
| Material : Aluminum | Aluminum |
| Size : 650b | 650b |
| ETRTO : 584 | 584 |
| Hole : 28H, 32H | 28H, 32H |
| Height : 20.0mm | 20.0mm |
| Width : Inner 32.0mm, Outer 36.0mm | Inner 32.0mm, Outer 36.0mm |
| Optimal Tire Width : 55mm - 76mm | 55mm - 76mm |
| Tire Interface : Clincher / Tubeless Ready | Clincher / Tubeless Ready |
| Weight : 535g | 535g |
Disc Brake Only
[SIZE]
| ERD : 561.5mm | 561.5mm |
| Spoke Bed Diameter : 559mm | 559mm |
| Max Tension : 130kgf | 130kgf |
- We ship within 1-2 business days after receiving your order (payment). (Basically, orders placed before 12:00 p.m. are shipped the same day.)
- Messenger delivery is available within Nagoya City only.
- We ship every day from Monday to Sunday, except on temporary holidays.
- Available delivery areas: All over Japan and the world.
- Please note that delivery may be delayed due to credit card processing status. If you would like to specify the delivery date and time, please fill in your request in the additional information in the shopping cart.
- The product will be shipped from Circles.
- Please contact the shipping company in case of damage or loss during shipping.
Regarding the delivery of complete bikes
- Please note that a separate shipping fee of 9,900 yen (tax included) will be charged for shipping complete bikes. (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
- After receiving your order, we will do a final check and ship complete bikes, but it may take 1-2 weeks. Please understand.
- We will send the bike with some parts removed for packing. We strongly recommend that you have your bicycle assembled at your nearest bicycle store.
- We will inform you of the delivery date and other details by e-mail.
- We apologize for any sales discrepancies at the store.
Regarding the delivery of frame sets
- Nationwide flat-rate shipping: 5,500 yen (tax included) (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
- We will inform you of the delivery date and other details by e-mail.
- We will provide the pre-treatment of facing and tapping for the frame sets purchased at our store as a service. We will inform you separately after purchase.
- We can also install a headset and BB for a fee, so please feel free to contact us.