RXL SLCarbon Aero Handlebars Aerobars Bullhorn Bars Aero Bars Bike Handlebar Extender Triathlon Handlebar Black UD Matte Carbon Aero Bars 31.8x340mm Bullhorn Handlebars TT Bicycle Handle Bar

I liked the lightness and the lower profile, and it suits my needs as a starter areo bar. I wanted a wider spacing, so I used these items to get a firm mount: - Maxmoral 4pcs Bicycle Handlebar Rubber Gasket 22.2 mm to 31.8 mm Bike Handlebar Shim Spacer. The side ridges were filed off to get a uniform fit. - friction tape was applied to the handle bar - coarse sanded the inside mounting surface of the areo bar for increased gripAfter a test ride of 15 miles, these bars held steady. I hope these last awhile.

These bars are light and comfortable, however there are some issues with installation. I recommend wrapping your handlebars with grip tape or electrical tape and flipping your bike upside down to tighten the screws. Without tape to provide extra friction, the screws could not get tight enough to grip to my handlebar without slipping forwards or backwards.

This product is made to be installed on handlebars with a 31.8 mm tube diameter. My handlebars are the other type, 25.4 mm, so they will not fit. However, there are shim products available specifically for the purpose of installing handlebars into handlebar stems that are the larger size. I decided to try to use those shims to install these aero bars and it worked. If you try to do this, you might find that you have to splay and offset the shims as shown in the photo. Also, you will save yourself a lot of hassle with the installation if you invert the bike, balance it on the saddle at a 45-degree angle, and lean the bike against a wall (see photo). This product is difficult to install and you will be dropping stuff all over the place. The screws provided tighten into anchors that can fall out of their housing and onto the floor and roll away very easily. Once installed these bars provide a very good aerodynamic posture for the rider. I had bars on my bike previously, but they had a 3" elevation to them, and I noticed when looking at a photo that I don't get my head down sufficiently in the aero position. After installing these bars I notice a great improvement in my aero position. They are also quite comfortable and lightweight. I bought some adjustable end plugs for decorative effect (see photo), as this product does not include plugs. After reading other reviews, I learned that non-adjustable plugs will not fit. The open end is provided to allow for gear shifters to be installed on the aero bars, which is a nice added feature. I would not try to install these bars on a 25.4 mm tube diameter handlebar without the shims. I tried to do it using a makeshift approach using some rubber material and tape, and although I was able to get the bars installed securely, they simply did not feel like they were firmly as tight as they should have been, and I was able to move them with a modest amount of force. Now that the shims are in place, the metal-to-metal clamping action provides a completely secure attachment. These are really not bad for less than $50. You will need a metric Allen-key set and some patience if you want to install these on a 25.4 mm handlebar. I can't provide any feedback for installation on a 31.8 mm tube diameter handlebar, sorry.

Very nice looking aerobars but one of the bars broke before I could even try riding with them (fortunately). During installation, the bar cracked just in front of the mounting bracket in the same location where one of the other reviewer's bar broke. There is a shift cable hole in this location that appears to be a stress point. I'm returning them as I don't feel I can trust the quality of the layup.

Product looks and feels nice with a quality feel. Great value. I did switch back to aluminum handlebars from carbon I was using as most carbon bars say NOT to clamp aero bars to them for safety reasons. Otherwise I’m happy with the purchase.