The Ghost Grappler frameset from Surly is the ideal foundation for a 27.5" trail gravel bike. The MTB-heavy geometry, large 2.8" tyre clearance and the option to install a dropper post allow you to ride singletracks with drop bars without any problems. Numerous mounting eyelets for bottle cages, racks and bags make the robust steel frame ready for bikepacking tours.

Specifications:

Application:

Gravel

Wheel Size:

27.5" (650B)

Size:

S, M, L, XL

Frame Material:

steel (CrMo)

Technical Information - Frame:

Wheel Standard:

12 x 142 mm, 12 x 148 mm (Boost), 10 x 135 mm (with adapter)

Axle Type:

12 mm Gnot Boost thru-axle

Seatpost (Ø):

30.9 mm

Seatpost Clamp(Ø):

33.1 mm

Headset:

EC34/28.6 - EC 34/30

Bottom Bracket Standard:

BSA

Shell Width:

73 mm

Chainline:

53 mm (Boost)

Brake Mount:

IS 2000

Front Derailleur Mount:

high clamp (34.9 mm)

Cable Routing:

external, mechanical

Bottle Cage Mounts:

5

Technical Information - Fork:

Steerer Tube:

1 1/8" - 1 1/4" tapered

Wheel Standard:

15 x 110 mm (Boost)

Axle Type:

15 mm thru-axle

Brake Mount:

IS 2000

Offset:

50 mm

Steerer Tube Material:

steel (CrMo)

Blade Material:

steel (CrMo)

Approved For:

Tyre Size (max.):

27.5 x 2.8"

Chainrings:

1x, 2x

Chainring Size (max.):

1x 36 tooth, 1x Boost 38 tooth, 2x 26-36 tooth, 2x Boost 32-39 tooth

Technology:

Gnot Boost:
The Surly Gnot Boost technology allows the mounting of different over locknut dimensions on the rear wheel. Rear wheels with 12 x 142 mm or 12 x 148 mm thru-axles can be mounted by clamping or spreading the frame. Wheels with an over locknut dimension of 135 mm can be operated in frames with Gnot Boost technology using the rear wheel axle adapter.

Geometry:

S:

Stack:

604 mm

Reach:

405 mm

Seat Tube Length:

386 mm

Effective Top Tube Length:

590 mm

Head Tube Length:

180 mm

Chainstay Length:

425 mm

Wheelbase:

1088 mm

BB Drop:

50 mm

Seat Tube Angle:

73°

Head Tube Angle:

69.5°

Standover Height:

762 mm

M:

Stack:

623 mm

Reach:

420 mm

Seat Tube Length:

437.2 mm

Effective Top Tube Length:

610 mm

Head Tube Length:

200 mm

Chainstay Length:

425 mm

Wheelbase:

1109 mm

BB Drop:

50 mm

Seat Tube Angle:

73°

Head Tube Angle:

69.5°

Standover Height:

796 mm

L:

Stack:

641 mm

Reach:

444 mm

Seat Tube Length:

488 mm

Effective Top Tube Length:

640 mm

Head Tube Length:

220 mm

Chainstay Length:

425 mm

Wheelbase:

1140 mm

BB Drop:

50 mm

Seat Tube Angle:

73°

Head Tube Angle:

69.5°

Standover Height:

830 mm

XL:

Stack:

660 mm

Reach:

458 mm

Seat Tube Length:

539 mm

Effective Top Tube Length:

660 mm

Head Tube Length:

240 mm

Chainstay Length:

425 mm

Wheelbase:

1162 mm

BB Drop:

50 mm

Seat Tube Angle:

73°

Head Tube Angle:

69.5°

Standover Height:

863 mm

Manufacturer Numbers:

S:

FM1161

M:

FM1162

L:

FM1163

XL:

FM1164

Contents:

• 1 x Surly Ghost Grappler frame
• 1 x Surly Ghost Grappler rigid fork