Profile Designs Aerobar Bracket Riser Kit

I have installed these risers on both my bike (Pro Design T3+ aero bars) and my wife's bike (Oval 350 aero bars) with excellent results. They dramatically improved the comfort of riding in the aero position. On my 30 minute loop, I went from being able to maintain an aero position for 5-10 minutes to being able to maintain 25+ minutes on the bars without discomfort. This is a huge improvement. A couple of things to note about using these Pro Design risers with other brand bars. Using the Oval 350 bars as an example, you must check the size of the handlebar tubes and the aero bar bolts. These risers are designed for round handlebar tubes where the stem mount clamps them. There are two pretty standard size handle bar tube sizes (smaller and larger). These risers fit the larger. If you have the smaller, your existing shims should fit nicely. The second issue is the bolts. These risers come with M6 bolts to fit. Some existing aero bars are clamped on using M5 or other sized bolts. I don't know if you can find the 70mm long M6 bolts at the hardware store, so you should be careful to check your "bolt size" before buying. I used my M6 tapping bits to enlarge the existing M5 threaded holes on the Oval 350 aero bars. This worked nicely. I did have to use a larger bit to bore out a recess for the M6 bolt head. This worked very nicely, but it does require some tapping bits and a little DIY modification. If you screw it up, you cannot go back to the smaller holes. THINKWORK Combination Drill Tap & Tap Bit Set, 3-in-1 Titanium Coated Screw Tapping Bit. Overall, both my wife and I found the 70mm rise made a huge comfort improvement.

clip on bars are always too close the handlebars. Take a look at actual tri/tt setups. They are much higher. Adding the risers was very easy. They look like a dedicated part of the bars. The risers made it much easier to align the bars to the right position during my last bike fit. I'm much more aero and produce more power from a more comfortable position.

This was a perfect addition to my Redshift Aero Bars to get them to a comfortable height for a multi-day endurance ride. Great quality and packaging and very easy to install

The 70mm aluminum risers raise the aerobars roughly 2 1/4 inches. Though not intended, these risers work with my 2014 Felt B14 handlebars. These risers made a world of difference for several reasons. Stock on my B14, the elbow pads sat flush on the handlebars, making it difficult to grab the inner potion of the handlebars. The risers create space between the aerobars and handlebars, allowing full grip of the handlebar. By using these risers, I was able to remove some spacers from the stem. This lowered the handlebars but raised the elbow pads and aerobars, greatly increasing the usability of the cockpit. Also, raising the elbow pads / aerobars added quite a bit of comfort. I'm able to crush longer rides without strain or pain. By removing the spacers at the stem, I'm still getting significant aero gains–however, if I want to get an even more aggressive position in the future, I may purchase the 40mm or 50mm set. Totally worth the money for these risers–one of the best upgrades I've done.

I bought the 70mm riser to mount the Profile Design Jammer GT on my Trek 520. The risers are top notch. Fit perfectly and the bolts came pre-treated with blue locktite but came with no washers (to save 2 cents?) and that's why I took off 1 star.

quedo perfecto, 100% satisfecho

Just what I needed.

What I wanted improved my position and the bike aesthetics