The Brother Cycles Pinecone is an all-steel, all-terrain frameset inspired by classic mountain bikes. It combines heat-treated 4130 chromoly tubing with a segmented steel fork and a straightforward set of component standards, giving you a platform for anything from everyday transport to a loaded off-road build.

The frame accepts cantilever or V-brakes as well as disc brakes. Horizontal quick-release rear dropouts allow a singlespeed setup, or a geared build using the separate derailleur-hanger insert. A 1 1/8in head tube and threaded bottom bracket also make the Pinecone useful for a mix of compatible new and second-hand components.

Tyre clearance is up to 27.5 x 2.6in or 29 x 2.2in, subject to the actual tyre and build; 29in/700c wheels require disc brakes. Rack and mudguard fittings, three bottle positions and triple fork mounts provide options for carrying luggage. This is a frame-and-fork listing, with complete-build photographs shown for inspiration.

Technical specifications

• Frame tubing: Heat treated 4130 chromoly double-butted main triangle, ED coated
• Brake compatibility: cantilever, v-brake or disc (51mm I.S. mount)
• Rear Dropouts: 135mm quick release horizontal with separate rear derailleur hanger
• Seat post diameter: 27.2mm
• Headset: 1 1/8" threadless. EC34/28.6 upper, EC34/30 lower (not included)
• Front derailleur clamp diameter: 28.6mm
• Bottom bracket shell: 73mm bottom bracket, ISO threaded
• Maximum tyre clearance: up to 27.5 x 2.6”, 29 x 2.2"(note this is a guide only, real world tyre measurements differ between manufacturers. 29"/700c is for disc brake only)
• Fork: segmented, quick release with mudguard/rack and triple cage mounts
• 3 sets bottle cage mounts on all sizes
• Rear rack and mudguard mounts
• Chainring clearance: up to 44-32-22t triple, 38-28t double, 36t single
• Frame weight (medium): 2.4kg
• Fork weight (uncut steerer): 1.3kg

Frame geometry

Available options

• Frame Size: Large, Medium, Small, X-large
• Colour: Electric Blue, Honey Monster

Frame warranty

Brother provides a three-year warranty against manufacturing and material defects for the original purchaser, with proof of purchase required. Paintwork, normal wear, misuse and damage caused by neglect or modification are excluded. Refer to the manufacturer’s full warranty terms for the conditions that apply.