Brother Cycles Mehteh - Stealth Black - Frames

The Brother Cycles Mehteh is a steel frameset for riders who want a fast gravel bike but also want the option of larger tires and the ability to ride on much rougher terrain than a traditional all-road bike. It’s built for long days in the saddle, bikepacking, and gravel riding where the road can easily turn into something that can barely be called a road anymore. Stealth Black keeps the look fairly understated - until you get close and spot Brothers’ gold-colored details.

The frame is built from heat-treated Reynolds 725 steel, with double-butted tubes in the main triangle. The geometry is designed for drop bars, combining a relatively quick feel with stability when the terrain gets rough or the bike is loaded for longer trips. Tire clearance is generous: up to 700 × 50 mm or 650B × 2.2". It’s a big part of the Mehteh’s identity and what places it somewhere between a classic gravel bike and a much more off-road-capable drop-bar bike.

The latest version has UDH-compatible rear dropouts. This means you can build it with a regular rear derailleur or use SRAM Full Mount derailleurs. The rear axle is 12 × 142 mm and the front is 12 × 100 mm, both thru-axle. The brakes are flat mount, and the frame is built around a standard threaded 68 mm bottom bracket shell, keeping several of the most important standards simple and well-proven.

The included Brother Carbon Gravel Fork is entirely carbon fiber and has three mounting points on each fork leg, fender mounts, and internal cable routing for dynamo lighting. The fork’s flip chip also lets you change the offset between 47 and 52 mm. The frame has three sets of bottle cage mounts in all sizes, as well as rear rack and fender mounts. This makes the Mehteh just as well suited to a light, fast gravel build as to a bike packed for several days.

The name Mehteh comes from the Himalayas and refers to the Yeti - quite fitting for a gravel frame that’s happy to leave the smooth gravel roads behind. Compared with the Brother Kepler, the Mehteh is the choice when you want more tire clearance, more capability on rough terrain, and greater options for building a bikepacking setup, without going all the way to a mountain bike.

Quick Specs

• Model: Brother Cycles Mehteh
• Type: Steel gravel frameset with carbon fork
• Color: Stealth Black
• Frame: Reynolds 725, heat-treated and double-butted steel in the main triangle
• Frame protection: ED-treated
• Fork: Brother Carbon Gravel Fork, entirely carbon fiber
• Sizes: X-Small, Small, Medium, Large, X-Large, and XX-Large
• Wheels: 700C or 650B
• Maximum tire width: 700 × 50 mm or 650B × 2.2"
• Rear axle: 12 × 142 mm thru-axle, included
• Front axle: 12 × 100 mm thru-axle, included
• Derailleur hanger: SRAM UDH standard, compatible with regular rear derailleurs and SRAM Full Mount
• Brakes: Flat mount, maximum 160 mm rotor
• Headset: ZS44/28.6 upper / EC44/40 lower, not included
• Seatpost: 27.2 mm
• Seatpost clamp: 30 mm, included
• Bottom bracket shell: 68 mm, threaded
• Front derailleur clamp: 28.6 mm
• Maximum chainring: 48T single, 50/34T double, or 52/39/30T triple
• Bottle cage mounts: 3 sets on all sizes
• Fork mounts: Three mounting points per fork leg, plus fender mounts
• Other mounts: Rear rack and fender mounts
• Dynamo cable: Internal routing through the fork
• Fork offset: Adjustable 47/52 mm with flip chip
• Frame weight: Approximately 2.3 kg in size Medium
• Fork weight: Approximately 550 g with uncut steerer tube