#9 on this list
Carbon Adjustable Width
Ibis
The Ibis Carbon Adjustable Width handlebar offers an ingenious solution to a universal cockpit dilemma: finding the exact right width without permanently cutting down an expensive carbon bar. Trimming a traditional carbon bar is irreversible, and riders often struggle to know whether 760mm, 780mm, or 800mm fits their shoulder width and local trail clearance best. Ibis solves this by using threaded aluminum inserts that screw securely into the bar ends, allowing users to adjust the width from 750mm up to 800mm in minutes. Beyond its modular party trick, the Ibis bar is a legitimate, high-performance carbon cockpit component. It features a compliant carbon layup engineered to damp trail buzz and reduce rider fatigue over long days in the saddle. On technical terrain, it delivers precise handling without feeling overly rigid. The threaded insert mechanism is completely concealed beneath standard lock-on grips, meaning the bar looks, clamps, and performs exactly like a standard one-piece bar once assembled, without creaks or play. At roughly 254 grams (including inserts), it carries a very slight weight penalty over non-adjustable carbon bars of similar dimensions, but it remains competitively light. Retailing near $170, the price is comparable to standard high-end carbon options, making the added versatility effectively free. The main drawback is mechanical complexity; riders must ensure inserts are torqued properly to avoid loose grip interfaces. **Highlights** - Threaded insert system allows easy width adjustment between 750mm and 800mm. - Eliminates the risk of permanently mis-cutting an expensive carbon fiber bar. - Well-tuned carbon layup delivers effective vibration damping and control. - Clean, creak-free integration under standard lock-on grips. - Competitive weight of around 254 grams despite the modular hardware. **Watch-outs** - Additional threaded hardware introduces extra points of maintenance and setup checks. - Slightly heavier than fixed-width carbon bars in the same category.
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#10 on this list
M7
ENVE
The ENVE M7 is a premium carbon handlebar engineered for aggressive enduro racers, bike park enthusiasts, and downhillers who prioritize absolute steering accuracy above all else. ENVE is renowned for its carbon craftsmanship, and the M7 is built to handle the highest forces modern gravity riders can produce. Built around a 35mm clamp, the M7 is tuned specifically to resist torsional flex, ensuring that when you lean hard into a high-load corner or navigate a high-speed rock garden, your front wheel tracks exactly where you aim it. In testing, the M7 is recognized as one of the stiffest, most precise carbon bars available. This uncompromising rigidity provides an ultra-connected trail feel that aggressive racers often prefer, allowing them to feel every nuance of front-tire traction. The trade-off, however, is ride harshness. ENVE did tune the layup to absorb high-frequency chatter better than raw aluminum, but the M7 remains decidedly stiff vertically. Over long, rough descents, it transfers significant feedback to the hands, which can accelerate fatigue for riders who do not maintain a strong, aggressive grip. At approximately 241 grams, it is reasonably light given its DH-grade durability. With a retail price hovering around $225, it is a significant financial investment. The M7 is best suited for fast, powerful riders who value laser-precise steering response over plush, fatigue-reducing vertical compliance. **Highlights** - Class-leading lateral and torsional stiffness provides unmatched steering precision. - Engineered and manufactured to withstand the extreme forces of downhill and enduro racing. - Includes custom decal sheets to color-match your bike's graphics. - Competitive weight of around 241 grams for a heavy-duty, gravity-rated bar. - Premium construction backed by ENVE's extensive carbon manufacturing expertise. **Watch-outs** - Very stiff ride feel can accelerate arm pump and fatigue on long, chatter-filled descents. - Expensive retail price of approximately $225.
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Specs side by side
| Spec | Carbon Adjustable Width | M7 |
|---|---|---|
| Material | Unidirectional carbon with aluminum inserts | — |
| Weight | 254 grams (claimed) | — |
| Adjustable Width | 750 mm to 800 mm | — |
| Adjustment Mechanism | Threaded internal bar-end inserts | — |
| Approximate Price | $170 | — |
| Clamp Diameter | — | 35 mm |
| Published Weight | — | 241 g |
| Primary Material | — | Continuous unidirectional carbon fiber |
| Intended Discipline | — | Enduro, Downhill, Bike Park |
| Retail Price | — | Around $225 |
What our reviewers liked and didn't
Carbon Adjustable Width
- Allows reversible width changes from 750mm to 800mm without cutting
- Competitive 254-gram weight despite modular aluminum insert hardware
- Effective vibration damping reduces hand and forearm fatigue
- Reasonably priced compared to conventional fixed-width carbon bars
- Additional threaded interfaces require regular torque checks and cleaning
- Slightly heavier than ultra-minimal, single-piece fixed carbon options
M7
- Class-leading torsional stiffness delivers razor-sharp steering accuracy
- Competitive 241-gram weight for a fully downhill-rated carbon bar
- Exceptional structural durability built for heavy bike park and race use
- Clean construction with textured clamping zones and decal kits
- Unforgiving vertical stiffness accelerates hand fatigue and arm pump
- Steep $225 price point compared to versatile competitors
- Lacks the compliance needed for comfortable everyday trail riding
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.