Soma Fabrications Bar-Ins Angle: Why Handlebar Backsweep Changes the Result
Soma Fabrications Bar-Ins angle depends on the handlebar beneath the clamp. SOMA illustrates this with two backswept Dream Riser bars: the same extension arrangement points straight ahead on one and slightly inward on the other. The extension’s own shape does not fully describe the position your hands will use.
Read the Soma Fabrications Bar-Ins angle examples
SOMA says the clamp angles the extensions about 25 degrees. On its Dream Riser with 25-degree backsweep, the extensions would point straight out. On the Dream Riser Lowdown with 20-degree backsweep, they would angle inward by 5 degrees.
Those examples explain how the base bar and extension relate. They are useful when choosing between the named handlebars, or when asking an installer how a proposed position will differ. They do not establish that every swept bar has a suitable clamping area.
Keep direction, tilt and horn rotation separate
The product description also allows the clamps to angle up or down and the horns to rotate through their wedge arrangement. These adjustments affect different aspects of the hand position. A plan to change tilt is not the same as choosing a different handlebar backsweep.
Discuss where you intend to place the extensions relative to the existing grips, shifters and brake levers. SOMA describes more than one possible inboard position but explicitly puts brake-lever and shifter reach first. An appealing secondary hand position is not useful if the normal controls become awkward to reach.
Confirm that the actual bar can receive the clamps
The clamps have a 23.8 mm inside diameter, and SOMA includes shims for 22.2 mm bars. Size alone is not the whole check: SOMA excludes carbon bars and bar sections that are tapered, noncircular or have cable grooves. Have the installer identify an appropriate section of the actual handlebar.
Choose the extension position around the riding you expect, then check the complete arrangement with the normal controls fitted. The manufacturer presents Bar-Ins as adjustable equipment that takes time to position. Its angle examples make that discussion more precise without supplying a universal setup for every rider and handlebar.
FAQ
Why can identical extensions point differently?
The handlebar’s backsweep changes the direction relative to the bicycle.
What is SOMA’s 20-degree backsweep example?
On the Dream Riser Lowdown, SOMA says the extensions angle inward by 5 degrees.
Does matching the clamp diameter approve any bar?
No. SOMA also excludes carbon and unsuitable tapered or noncircular clamping sections.
Begin the extension discussion with the handlebar’s backsweep and the positions of the existing controls. The SOMA reference index covers separate component questions alongside our introduction to its everyday bicycle designs.
Primary references: official reference 1 (https://www.somafab.com/shop/280148-soma-bar-ins-extensions-long-extension-component-only-pair-8811).
Photograph credits and permissions
Photograph 1
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License / permission: CC BY-SA 3.0
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