Finding the right TT bars can boost aerodynamics, comfort, and control on long road and triathlon rides. This guide highlights five highly regarded options, each compatible with 31.8mm clamps and designed to optimize a forward-leaning riding position. Read on to compare features, materials, and installation tips to help you choose the best aero extension for your road bike.
| Product | Brand | Clamp Size | Material | Length | Key Benefit |
|---|---|---|---|---|---|
| Joxvizx Carbon TT Arm Rest | Joxvizx | 22.2mm | Carbon Fiber | Unknown | Lightweight, ergonomic grip |
| BNVB TT Rest Bar | BNVB | 31.8mm | 2×1 12K Carbon | Unknown | Ultra-light with comfortable armrests |
| BBB Aero Bars BHB-59 | BBB | 35mm Height / 31.8mm clamp | Aluminium | Unknown | Two-piece design, foam padding |
| RXL SL Carbon Drop Aero Bars | RXL SL | 31.8mm | Carbon Fiber | 380mm | Very light, internal brake line routing |
| Alfa Pasca TT 360mm | Alfa Pasca | 31.8mm | Carbon Fiber | 360mm | 40° angled, sponge pads for comfort |
Joxvizx Carbon TT Arm Rest Handlebar Aero Bars Extension
These full carbon fiber TT bars emphasize strength and lightness, supporting a secure grip even without gloves. The ergonomic design mirrors natural hand positioning to reduce fatigue on extended rides, which can translate into better endurance for time trials. Accessories include one pair of handlebars and two pairs of handlebar plugs for installation flexibility. The product aims to combine comfort with a stiff, race-ready feel suitable for road and triathlon applications.
BNVB TT Rest Bar 12K Glossy Carbon Aero Bars
Built from 12K glossy carbon fiber, this TT bar set focuses on ultra-light performance with an emphasis on comfort via sponge armrests. The cushions are non-slip, removable, and washable, helping maintain grip and hygiene over many miles. The 31.8mm clamp provides a straightforward installation, enabling quick transitions between TT and road configurations as needed for varying courses or training sessions.
BBB Aero Bars Aluminium Tri Bars BHB-59
This two-piece aluminium aero bar system is designed for achieving an aero position with a comfortable fit. It features foam padding along the bars and sleeves around the steerer tubes, enhancing comfort during sustained efforts. The design supports straightforward adjustments and a stable riding stance, making it suitable for riders who prioritize both aerodynamics and ride quality on road and triathlon courses.
RXL SL Carbon Drop Aero Bars For Road Bike
These ultra-light carbon TT bars emphasize stiffness and a sleek carbon aesthetic. With a 380mm width and 31.8mm clamp, they offer aerodynamic efficiency and a modern look. The internal brake line routing helps reduce wear and clutter, contributing to cleaner cable management and safer ride conditions. The bars weigh approximately 160g, making them appealing for riders seeking performance without added weight.
Alfa Pasca TT Bars 360mm
This model features a 360mm length with a 40° angle, designed to deliver an aggressive aero position while maintaining control. The kit includes Velcro-fastened sponge pads for arm comfort, and the installation torque is specified at 4Nm, with the recommended use of a hex wrench. The carbon fiber construction keeps weight low and stiffness high, contributing to overall performance in road and triathlon environments.
Buying Guide: Key Purchase Considerations And Comparisons
- Material: Carbon fiber options tend to offer the best weight-to-stiffness ratio, with high-end 12K or 3K weaves providing rigidity for sprinting and aerodynamics for road rides. Aluminum options are typically heavier but durable and budget-friendly.
- Clamp Compatibility: Most TT bars use 31.8mm clamps, though some options list 22.2mm or 35mm heights. Confirm your handlebars’ clamp diameter before purchase.
- Length And Positioning: Longer bars (e.g., 360–380mm) can improve reach and aero position but may affect steering responsiveness. Consider your torso length, flexibility, and cockpit setup when choosing length.
- Comfort Features: Armrests, sponge pads, and non-slip materials help reduce fatigue on long rides. Removable, washable padding simplifies maintenance.
- Aero Routing: Internal routing for brake lines can reduce cable clutter and protect lines from wear. This is advantageous for cleaner aesthetics and safer rides.
- Installation: Look for kits with clear torque guidelines (e.g., 4Nm) and included accessories (plugs, Velcro, or padding) for easier setup and secure mounting.
- Use Case: For triathlons and time trials, prioritize stiffness and light weight, along with a geometry that supports a stable aero stance. Road-focused TT bars may emphasize comfort without sacrificing performance.
- Maintenance: Carbon components require care to prevent impact damage; inspect for cracks after crashes or heavy drops. Aluminum bars are generally more forgiving during installation.
When selecting TT bars, balance aerodynamics with comfort and compatibility with your existing cockpit. The five options highlighted here cover a range of materials, lengths, and pad configurations to suit different riding styles—from endurance time trials to sprint-focused triathlons. Always verify product dimensions, clamp size, and installation torque before purchasing to ensure a proper, safe fit for your road bike setup.
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