TT bars, aero extensions, and arm rests are essential upgrades for riders seeking a more aero profile and comfortable triathlon or road-time trials. This guide highlights five reputable TT bars that pair well with common road bikes, focusing on carbon and aluminum options, ergonomic design, and easy installation. Each product below comes with a quick look at materials, weight, and features to help you compare at a glance.
| Product | Brand | Material | Clamp Diameter | Approximate Weight | Key Benefit |
|---|---|---|---|---|---|
| Joxvizx TT Arm Rest | Joxvizx | Carbon Fiber | 22.2mm | Lightweight | Ergonomic comfort and durability |
| BNVB TT Rest Bar | BNVB | Carbon Fiber | 31.8mm | 340g | Ultra-light with cushioned armrests |
| BBB Aero Bars | BBB | Aluminum | 31.8mm | Not specified | Two-piece, comfortable foam padding |
| RXL SL Carbon Aero Bars | RXL SL | Carbon Fiber | 31.8mm | ~160g | Lightweight, internal brake routing ready |
| Alfa Pasca TT Aero Bars 360mm | Alfa Pasca | Carbon Fiber | 31.8mm | ~350g | 40° angle, long reach for aero riding |
Joxvizx Carbon TT Arm Rest Handlebar
Designed for road and TT setups, this full-carbon bar extension focuses on a natural hand position and reduced fatigue during long rides. The ergonomic profile mirrors common grip patterns to improve comfort without gloves in many conditions. A notable feature is the inclusion of extra handlebar plugs, offering more customization and a secure fit. The carbon construction aims to balance strength with light weight, helping riders maintain an aero posture with less drag.
Key features include a full carbon fiber build for strength and lightness, an ergonomic design to reduce fatigue, and additional handlebar plugs for versatility. Install compatibility aligns with 22.2mm handlebars, making it a good fit for many TT setups. For riders prioritizing a firm, glove-free grip and a compact aero extension, this option provides a straightforward upgrade path without compromising control.
BNVB TT Rest Bar 12K Carbon Fiber
This TT bar emphasizes ultra-light performance with a 12K gloss finish and a weight around 340g. The 12K carbon fiber construction aims to provide a stiff yet responsive ride, while cushioned armrests offer comfort on longer efforts. The clamp design at 31.8mm makes it easy to attach or remove from a main bar, enabling quick transitions between TT and standard road configurations. The inclusion of washable, removable padding helps maintain comfort through repeated rides.
Key features include a high-strength carbon profile for reduced weight, a comfortable sponge armrest setup with non-slip material, and simple 31.8mm clamp compatibility. For riders seeking a balance of light weight and comfort, BNVB provides a straightforward install with the option to swap between TT and road positions without specialized tools.
BBB Cycling Aero Bars Aluminium Tri Bars
BBB’s two-piece aluminum aero bar setup focuses on a comfortable aero position with a modest 35mm rise created by Foam Padding EVA sleeves and padding around the steerer tubes. The foam padding not only cushions the arms but also helps reduce fatigue during longer efforts. The design supports straightforward installation, with emphasis on creating a stable, comfortable rider position while chasing improved aerodynamics on the saddle-to-handle transition.
This option stands out for the EVA foam padding that enhances comfort on the forearms, making it attractive for riders who log longer distances. The aluminum construction provides durability with a weight-conscious approach, and the clamp sizing aligns with common road bike bars, ensuring compatibility with many setups. It’s well-suited to riders who want an affordable, reliable aero transition without carbon fiber’s stiffness concerns.
RXL SL Carbon Drop Aero Bars
RXL SL offers ultra-light carbon aero bars designed for road and triathlon use, featuring a 380mm width and 31.8mm clamp. The bars weigh approximately 160g, highlighting a strong weight-to-stiffness ratio. A notable benefit is the internal routing capability of brake lines via threaded holes on the back, which minimizes clutter and protects lines during daily riding and longer events. The 3K matte weave emphasizes a clean, professional appearance alongside practical performance benefits.
Key advantages include light carbon construction, internal routing for tight setups, and a generous width for a robust aero position. With a 4Nm torque rating for installation, riders can secure the bars with a standard hex wrench, ensuring a reliable fit. This model is particularly appealing to riders seeking a performance-focused, lighter TT bar with a clean internal-stem option for line protection.
Alfa Pasca TT Aero Bars 360mm
Alfa Pasca presents a 360mm carbon fiber TT bar with a 40° angle, designed to maximize aero positioning. The 31.8mm clamp fits most standard road setups, and the listed weight is around 350g, balancing strength and weight for a comfortable long-distance posture. An included Velcro strap and sponge pad provide arm comfort during rides, with the pad being removable and washable for maintenance. The installation guidance specifies a tightening torque of 4Nm, ensuring a secure and predictable fit for riders seeking a stable TT position.
This model emphasizes an aggressive aero stance with a longer reach and a defined angle, suitable for riders prioritizing aerodynamics and a streamlined silhouette. The combination of carbon fiber with a 360mm length offers a balance between reach and control, while the sponge padding adds a layer of comfort for endurance riders who spend extended periods in the aero position.
Buying Guide: Key Purchase Considerations
Material and weight: Carbon bars tend to be lighter and stiffer, which can yield marginal aero gains but may be more costly. Aluminum is durable and often more budget-friendly, with adequate stiffness for most riders. Balance weight with comfort and intended use (training vs. triathlon).
Compatibility: Check clamp diameter (31.8mm is common) and overall width to ensure a proper fit with your frame and cockpit. Consider whether you need internal brake line routing for cleaner cables and a neater appearance, as this can reduce wear and improve aesthetics.
Comfort features: Arm rests, sponge pads, and padding impact long-ride comfort. Removable and washable padding is advantageous for years of use. Foam or EVA padding can reduce fatigue during extended aero positions.
Adjustability and installation: Look for straightforward installation with standard tools, and verify included hardware. A tightening torque specification (commonly around 4Nm) helps achieve a secure setup without overtightening. Consider whether you want a fixed angle or adjustable angle to fine-tune your aero posture.
Aero positioning and handling: Longer bars and steeper angles can improve aerodynamics but may affect steering feel and control in crosswinds. Riders should assess whether the bar length and reach suit their flexibility and riding style—triathletes may prioritize longer reach, while sprinters may favor a more compact setup for quick bursts.
Durability and warranty: Carbon components should be inspected for any signs of damage after a crash or hard impact. Confirm warranty terms with the seller, especially for carbon parts, to ensure replacement or repair options are available.
Price-to-performance: Compare similar models by weight, stiffness, and comfort features. While carbon options often command premium pricing, they can offer meaningful gains in efficiency and weight reduction for seasoned riders.
Maintenance: Removable pads facilitate cleaning and long-term maintenance. Ensure compatibility with your existing handlebars and accessories, and that replacement pads or plugs are readily available if you plan frequent upgrades.
Riding goals: Choose based on your primary use—course racing, triathlons, or endurance training. TT bars that optimize aero position for time trials should also provide a stable feel and predictable handling in varying conditions.
Overall, the best TT bars for your road bike depend on your balance of weight, comfort, compatibility, and intended riding scenarios. The options above cover a range of carbon and aluminum configurations, helping you tailor your cockpit to maximize efficiency while preserving control and comfort on long rides.