A proceeding reputation.
When you need no-nonsense extensions that simply work, the Profile Design T1+ Clip-On Time Trial Bars are the answer. This is a lighter, simpler, easier-to-adjust version of Profile's old Stryke clip-on setup, which itself was lighter, simpler, and more adjustable than its predecessors. Their predecessors were also the leaders of their respective zeitgeists, which is understandable considering that Profile got in on the ground floor of clip-on aero bars in the late 1980s. In fact, it was the first company that had adjustable-length extensions. Now, for the T1+, the bars are 6061 aluminum tubes that are bent like a ski into a graduated 'L-shape' that's easy on your wrists. And since the extensions are round in shape, they 're able to be rotated in the clamp, as well as fore and aft, making it easy to find a spot that's both fast and comfortable.
Depending on how you angle the ski bend and your overall body position, you're able to almost hide behind your hands -- something that LeMond did to great effect when he brought aerobars to the world by winning the 1989 Tour on the final stage.
The handlebar clamps, made from forged 6061 aluminum, tighten to the bars separately from the extensions. These clamps are separate from the armrests, so you're able to first determine the width that you're comfortable riding with. Afterwards, you set the length of the extensions, and then adjust the armrests to your desired position. And since the armrest clamp is round and clamps onto a round tube, you're able to adjust the cant of the armrests. Essentially, this provides some height adjustment, while also allowing you the opportunity to have the armrests tilted either inward or outward. For those who prefer a narrow position, having the armrests tilted upward toward the stem provides a secure feeling. And for those who like a wider position, we recommend lowering the armrests and tilting them outward. This way, it's easier to move in and out of the armrests. The armrest clamps, known as J2 Brackets, are also able to be moved fore and aft on the extensions themselves.
J2 brackets allow you to set the F-19 armrests at two different widths, as well as to adjust the angle of the rests and to set three fore and aft positions. People who prefer a wider position often like to rotate the rests so that they're cradling and guiding their forearm in the direction of the extension. Included with the F-19 armrests are 12mm spacers, which allow height adjustments of the armrests.
The pads on the armrests attach via hook-and-loop closures. This allows you easy access to the two bolts that hold each armrest to its respective bracket. It also means that the pads are easily removable for either hand or machine washing.
The Profile Design T1+ Clip-On Time Trial Bars accept bar end shifters, both mechanical and electronic. The extensions themselves are 335mm long from end-to-end, and the range of adjustment is 110mm. The handlebar clamps are designed to fit 31.8mm diameter center-section handlebars and come with shims so that the clamps are able to be used with 26.0mm diameter handlebars. Please note that these bars weigh around 503 grams and are available in the color Black.
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Reviews & Community
Clip-on TT bars
I installed the aerobars this weekend and took the bike for a test run. The bars look great with my bike and I didnât have to adjust the bars either. I couldnât use the plastic bushings that came with the set; the bolts were not long enough to clamp the bars to my handle bars. I substituted the bushing with a tape to protect my handle bars. The test run went as expected. I was comfortable, but I will still need to adjust my seat position for max benefit. Great product. Easy to install and I didnât have to reconfigure my handle bars.
- Familiarity: I've put it through the wringer
I've spent much of my time wrenching, and some of my time racing in the triathlon community, and the T1 extensions are one of my top choices for Tri and TT builds. These bars offer the most adjust-ability in terms of pad placement, extension length, and ease of installation. Profile design replacement pads are widely available, and the aluminum extensions can be cut to whatever length necessary. The only thing holding back that 5th star is the weight; the same hardware that affords great flexibility does add a degree of weight, but proper fit and aerodynamics trump weight savings on a tri/tt bike any day. For a similar option that is a bit lighter, check out the T1+ with Viper Extensions for carbon ski bend extensions.