Surly Karate Monkey frameset white

...is more than just a frame - it's the foundation for your next adventure. Whether single trail, gravel track or long distance: this frameset will take you anywhere.

Sizes : XS,XL

Colour: Snow Mold White

The Surly Karate Monkey is a versatile steel hardtail frameset that's perfect for trail riding, bikepacking and custom MTB builds.

Specification :

- Frame material: 4130 chromoly steel, double butted, TIG-welded, ED-coated

- Fork: Rigid chromoly fork, 483 mm length, 47 mm offset

- Suspension fork compatibility: Up to 140 mm travel (27.5+)

- Wheel sizes: 27.5" × 3.0" or 29" × 2.5"

- Axles:

- Front: 15 × 110 mm Boost

- Rear: "Gnot-Boost" 145 mm - compatible with 12 × 142 mm & 12 × 148 mm

- Brake mount: Disc brake, IS 51 mm (max. 203 mm rotor)

- Bottom bracket: BSA 73 mm (1.37" × 24 TPI)

- Seatpost: Ø30.9 mm, dropper compatible

- Headset: ZS44/28.6 at the top, EC44/30 at the bottom

🚴‍♂️ Versatility for your setup

- Compatible with hub gears and hub dynamo (e.g. SON or Shimano)

- Mounting points for bottle cage, pannier rack and bikepacking accessories

- Chainring options: 1x or 2x MTB & Boost configurations

- Front derailleur mount: High Direct Mount, Ø34.9 mm

🌄 Areas of application

- Trail & All-Mountain

- Bikepacking & off-road tours

- Custom MTB body with steel frame

- Commuting with hub dynamo and light system

- Design for wheel sizes:

- 27,5" × 3,0"

- Maximum tyre diameter: 29" × 2.5"

(tyre clearance depends on rim and drive configuration)

- Frame material:

- 4130 chromoly, double butted main triangle

- TIG-welded, ED-coated

- Fork:

- Rigid fork: 483 mm length, 47 mm offset

- Max. Suspension fork: 551 × 51 mm (140 mm travel for 27.5+)

- Axles & installation dimensions:

- Front: 15 × 110 mm (incl. Surly axle)

- Rear: "Gnot-Boost" 145 mm - compatible with 12 × 142 mm & 12 × 148 mm

- Brake mount:

- Disc brake, 51 mm I.S. (max. 203 mm rotor)

- Headset:

- Top: ZS44/28.6

- Bottom: EC44/30

- Bottom bracket:

- BSA 73 mm (1.37" × 24 TPI)

- Seatpost & clamp:

- Ø30.9 mm post, Ø33.1 mm clamp

- Dropper post compatible

- Front derailleur:

- High Direct Mount, Top-Pull (Ø34.9 mm)

- Offset adapter for various hub spacings (not included)

- Chainring compatibility:

- 1x (Mtn): up to 28T

- 2x (Mtn): up to 24/34T

- 1x (Boost): up to 32T

- 2x (Boost): up to 24/36T

- Mounting points:

- Bottle cage: 1 standard + 1 three-pack (XS-M), 2 standard + 1 three-pack (L-XL)

- Fork: 2 three-pack mounts

- Rear mudguard mount available