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Although it's a relatively new name in cycling, NeilPryde has been precisely wrangling carbon fiber into high-performing pieces of art in the windsurfing world for the better part of three decades. It's no surprise that the Bura SL has quickly gained a reputation as a featherweight, responsive, race-ready frame worthy of everything from long, hilly road races to the most technical of criteriums. The newest version of the Bura SL, the 2016 Bura SL2 Road Frameset, looks to continue that race-bred tradition with maximal efficiency and a responsive yet comfortable ride packed into a package that's claimed to weigh in at a mere 710 grams for the 51cm frame.
NeilPryde fashions the Bura SL2 from its C6.9 uni-directional, high modulus carbon fiber, which sits as the highest grade carbon the company feels is appropriate for constructing bicycles. Notably, the rear triangle is constructed with one-piece stays using a proprietary molding process to create the chain stays, rear dropout, and a portion of the seat stays in one single piece. This reduces the number of bond points, which in turn increases strength by maintaining continuous fibers and lowers weight by eliminating the extra carbon usually needed to strengthen those extra bonding areas. NeilPryde also employs a PU mandrel rather than the more commonly used silicone option in the molding process, which allows more precise management of tubing thickness and fiber orientation when building complicated pieces such as the head tube, seat tube joints, and bottom bracket shell.
In addition to the layup, the tube shaping varies across the frame and is carefully constructed to provide an ideal balance between stiffness, light weight, and comfort. The square-to-oval top tube and asymmetric down tube provide exceptional torsional rigidity with just the right amount of compliance to keep the handling crisp and predictable. Accordingly, the big, boxy chainstays and massive bottom bracket shell provide stiff, efficient power transfer for snappy attacks and railing corners. Up front the Bura SL2's carbon fiber fork features a slight bow shape that helps soak up road vibration without any negative impacts to handling.
At the headtube and seat tube joints, you'll notice a bit of extra material edging out into the triangle. This is NeilPryde's Exoskeleton design, which utilizes carbon fiber ribs and gussets to add strength and stiffness. While the Bura SL2 doesn't come with any specific aerodynamic claims, NeilPryde does say that Exoskeleton's shaping also helps smooth and improve airflow across the frame.
Keeping up with the times, the Bura SL2 boasts a dual internal cable system compatible with both electronic and mechanical cable routing. The down tube includes a dual-position bottle cage mount, which offers a high or low position for bottles based on individual rider preference and reach. As a final touch, the Bura SL2 get an integrated seat post clamp for clean lines and easy adjustment.
- A feathery light, all-around race machine
- Versatile, race-focused geometry
- High-grade C6.9 uni-directional, high modulus carbon fiber construction
- Tube shaping strikes a balance of light weight, stiffness, and comfort
- Internal cable routing compatible with electronic or mechanical systems
- Dual-position bottle cage mount on down tube
- NeilPryde boasts decades of carbon fiber construction experience
- Item #NPY0001