CRUST BOMBORA FRAME

The Crust Bombora frame is a sporty gravel bike frame designed as a lighter, more agile version of the Evasion. Built around 650b/27.5" wheels with up to 2.3" tires (or 700c with 48mm max), it offers opulent ride quality while retaining all the mounts for racks, fenders, and accessories.

Handmade in Taiwan from heat-treated chromoly with TIG welding, the Bombora features a 68mm BSA bottom bracket for road cranks, 12mm thru-axles, and flat mount caliper compatibility. Its ED-coated frame protects against corrosion, and the lightweight tubing adds compliance for a smooth ride.

Key Features:

• Designed for gravel and light adventure riding

• Fits 650b x 2.3" or 700c x 48mm tires

• Road crank compatible (1x ideal, up to 44t chainring)

• Flat mount brake calipers front and rear

• Front & rear thru-axles included

• ED-coated paint for corrosion resistance

• Handmade heat-treated chromoly, TIG welded

Specifications:

• Head tube diameter: 1 1/8" (threadless steerer)

• Bottom bracket: 68mm English (BSA)

• Steerer tube length: 400mm

• Fork spacing: 12x100mm

• Rear end spacing: 12x142mm

• Seat post diameter: 27.2mm

• Fork axle-to-crown: 395mm

• Frame weight (Large): 2.27kg | Fork: 1.36kg

Available Colors: Turquoise Marble Blue Lug Special Edition, Sea Monster Green*, Pastel Violet
Sizes: XS 52cm | S 54cm | M 56cm | L 58cm | XL 60cm

Geometry Chart (mm):