Description
CRUST's optimal solution for gravel touring bikes Bombora
Bombora is a gravel bike that can be used for everything from bikepacking to commuting to school to high speed riding, and is designed to use road parts, with a 68mm BB shell, and is built to swallow 650b / 27.5" wheels with a maximum tire size of 2.3". wheels with a maximum tire size of 2.3".
This plus-size gravel bike has lighter tubing than the Evasion and features rack dowels and fender dowels that are essential for adventure riding, as well as dynamo brake cable integrated routing on the fork.
It will be a delightful companion for you as you venture out on your adventures, while still maintaining the supple ride of a chromoly frame.
[SPEC]
Head tube diameter: 1 1/8" (threadless steerer)
Bottom bracket: 68mm English (BSA) Threaded
Steerer tube length: 400mm
Fork spacing: 12x100mm
Rear end spacing: 12x142mm
Front axle thread pitch& ; length: 1.5x120mm
Rear axle thread pitch & length- 1.5x164mm
Seatpost diameter: 27.2mm
Fork axle to crown: 395mm
Weight: Frame (L) 2.27kg｜Fork (uncut) 1.36kg
Max rotor size: front 180｜ Rear 160
Front and rear thru-axles included
Headset not included
Handmade in Taiwan using heat-treated chromoly
Tig welding
| XS 52cm | S 54cm | M 56cm | |
| Effective Top Tube | 520mm | Effective Top Tube | Top Tube(Center to Center) |
| Top Tube(Center to Center) | 502mm | 525mm | 546mm |
| Slope | 18.7° Slope | 14.1° Slope | 9.5° Seat Tube(Center to Top) |
| Seat Tube(Center to Top) | 456mm | 502mm | Seat Tube(Center to Center) |
| Seat Tube(Center to Center) | 408mm | 455mm | 494mm |
| Head Tube Angle | 69.5°, 70°, 70°, 70°, 70°, 70°, 70°, 70°, 70 | 70°, 70°, 70°, 70°, 70°, 70°, 70°, 70 | 71° Seat Tube Angle |
| Seat Tube Angle | 74.5° Seat Tube Angle | 74° Seat Tube Angle | 73° Head Tube Angle |
| Head Tube Lenght | 121mm | 132mm | 153mm |
| Stack from Bottom Bracket | Stack from Bottom Bracket | 553mm | 576mm |
| Reach from Bottom Bracket | Stack from Bottom Bracket | 378mm | 382mm |
| Chain Stay Length | 425mm | Chain Stay Length 425mm | 425mm |
| BB Height | 290mm | 290mm | 290mm |
| BB Drop | 64mm | 64mm | BB Drop 64mm |
| Standover | 747mm | 775mm | 804mm |
| Rake | 48mm | 48mm | 48mm |
| Trail | 81mm | 78mm | 71mm |
| Wheelbase | 1008mm | 1020mm | 1023mm |
*The bike is positioned as a plus size gravel bike and can be equipped with larger size tires, but cannot be used as a mountain bike. Please be aware of this.
- 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.