TranzX JD-TB12 Aero Bar Extensions
Best budget friendly upgrade for aspiring triathlon and time trial enthusiasts.
These aero bars provide an accessible way to adopt a more aerodynamic riding position without committing to a dedicated time trial bike. With extensive adjustability for armrest placement and angle, they offer a customizable fit that balances performance gains with rider comfort.
$49.95
at
The Bikesmiths
Who it's for
- Weight-conscious cyclists looking for an affordable speed boost
- Riders seeking a customizable fit for improved long-distance comfort
- DIY enthusiasts wanting a hassle-free setup for time trials
Who should skip it
- Endurance athletes who prioritize plush support over minimalist design
- Competitive triathletes requiring precise, micro-adjustable cockpit configurations
- Owners of integrated or non-standard aero road handlebars
Performance breakdown
Aerodynamic Efficiency
Significant drag reduction for riders transitioning from standard road setups.
Fit Adjustability
Highly customizable armrest positioning accommodates a wide range of rider geometries.
Installation Versatility
Included shims ensure compatibility with most standard handlebar diameters effortlessly.
Ergonomic Comfort
Padded armrests provide necessary support for sustained time trial efforts.
Build Robustness
Solid construction that balances durability with a manageable overall weight.
Setup Precision
Laser-etched markings make dialing in exact measurements quick and intuitive.
Key Specs
Color
Black
Finish
Matte Black
Weight
477 grams
Handlebar Diameter
31.8 mm (compatible with 25.4-26.0 mm via included shims)
Tri Bar Diameter
22.2 mm
Mounting Type
Clip-on
Adjustability
Armrest angle, width, and length
Included Hardware
4 x Half Rubber Shims
Know before you buy
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Ask Metto anything about the TranzX JD-TB12 Aero Bar Extensions before you decide.
