CRUST SINGLE SPEED WOMBAT FRAME

The Crust Wombat Frame is a single-speed mountain bike designed for those who want something fun and versatile for both trails and streets. It’s not just another novelty “Klunker” but a purpose-built bike with a high bottom bracket and a short rear end for nimbleness and easy handling. The Wombat is perfect for riders looking to ride long distances, hit up some singletrack, street spots, or even the local skatepark.

Key Features:

• Tire Compatibility: Designed for 27.5x2.6" tires, but can also accommodate up to 2.8" tires. A great option for XC setups with 2.2" tires, and can handle fenders with a 2.4" tire.

• Brake Compatibility: Primarily designed for V-brakes, but can also work with Cantilever brakes. V-brakes offer superior stopping power, even in tough conditions.

• Crank Compatibility: Takes a mountain crank, ideally 1x with a max 36t chainring, or a 2x setup if you prefer.

• Dropout Design: Features vertical rear dropouts with a replaceable derailleur hanger. The frame is single-speed compatible and can be used with a Rohloff hub.

• Internal Routing: Includes internal dropper post and dynamo routing. Ideal for a 100mm dropper post for added flexibility.

• Pack Mounts: The frame has three pack mounts on the fork for extra cargo or bottles, perfect for bikepacking or touring.

Build Notes:

• Seatpost Clamp: Included for a clean setup.

• Max Tire Size: 27.5x2.6" for ample traction, or 2.8" tires for those looking for a more aggressive ride.

• Recommended Gear Setup: Ideal for a 32t chainring with a 18t freewheel. Adjust the gearing for easier or harder pedaling depending on your riding style.

Ideal For:

• Riders who want a versatile bike for both urban and off-road adventures.

• Cyclists who like single-speed simplicity or a lightweight geared setup.

• Those looking to get off the beaten path and explore new trails with style.

Specifications:

• Material: Heat-treated Chromoly

• Sizes: Small (17”), Medium (19”), Large (21”), Extra Large (23”)

• Head Tube Diameter: 1 1/8” Threadless

• Bottom Bracket: 73mm English (BSA) Threaded

• Steerer Tube Length: 400mm

• Rear End Spacing: 135mm with vertical dropouts

• Seatpost Diameter: 27.2mm with internal dropper routing

• Weight: Frame (Large 21”) – 4lbs 15oz | Fork – 3lbs

Geometry Chart (Metric):