The Crust Bombora is a sporty gravel bike offering clearance for high-volume tires and a high level of comfort. Its lightweight tubing ensures low weight and a pleasantly compliant ride—ideal for long tours on asphalt, gravel, and mixed-surface "groads."
The frame is specifically designed for 650B/27.5" wheels with tires up to 2.3" wide. Alternatively, it can be fitted with 700C wheels and tires up to 48 mm. Thanks to numerous braze-ons, the Bombora can be customized with racks, fenders, and other accessories for touring and bikepacking.
Product details:
- Handmade in Taiwan
- Material: Heat-treated Chromoly steel
- TIG-welded
- Color: Turquoise Marble Blue (special edition with lugs)
- Sizes: Extra Small 52 cm | Small 54 cm | Medium 56 cm | Large 58 cm | Extra Large 60 cm
- Steerer tube diameter: 1 1/8 inch (for threadless steerer tubes)
- Bottom bracket: 68 mm, English thread (BSA)
- Steerer tube length: 400 mm
- Fork spacing: 12 x 100 mm
- Rear spacing: 12 x 142 mm
- Thread pitch & length (front axle): 1.5 x 120 mm
- Thread pitch & length (rear axle): 1.5 x 164 mm
- Seatpost diameter: 27.2 mm
- Fork axle-to-crown height: 395 mm
- Weight: Frame (Size Large): 2.27 kg (5 lbs) | Fork (uncut steerer): 1.36 kg (3 lbs)
- Lightweight steel frame with a comfortable ride feel
- Designed for 650B / 27.5"
- Tire clearance up to 27.5 x 2.3"
- With 700C: Tires up to 48 mm
- 68 mm BSA bottom bracket for road cranks
- Ideal for 1x drivetrains, max. 44 teeth
- 12 mm thru-axles front and rear
- Thru-axles included
- Flat-mount brake mounts front and rear
- Max. Brake rotor: 180 mm front / 160 mm rear
- Numerous mounting points for racks, fenders, and accessories
- Painted frame with ED coating for corrosion protection
- Max. approx. 40 mm of spacers recommended
- Headset not included
Important: The Bombora is not a mountain bike! Despite its generous tire clearance, the frame was intentionally built using a lightweight tubeset to achieve a particularly comfortable and lively ride quality. It is excellent for gravel, tarmac, loose surfaces, and long-distance touring, but it is not designed for demanding singletrack or rough, highly technical terrain.
The Crust Bombora is therefore the ideal choice for anyone seeking a fast, comfortable, and versatile gravel bike with ample tire clearance and extensive options for carrying luggage and accessories.
Are you looking for a CRUST complete bike? Then you've come to the right place: As experts with many years of experience building custom bikes, we'll work with you to build the bike of your dreams. Just send us an email!
Product safety information
Manufacturer information:
Crust Bikes
3416 Hull St.
Virginia
Richmond, Vereinigte Staaten, 23224
info@crustbikes.com
https://crustbikes.com
