Handlebars - Narrow or Aero?

@mcneese.chad any experience with those Coefficient RR bars?

No sir, never seen them in person.

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And this is why I hate one-piece integrated systems……well, that and the fact that stock spec never comes close to meeting my fit requirements.

Hate everything about it.

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I do. Had some issues after an accident and was searching for something to help. Ran the RR bar in 38cm for a year or so, maybe 13-14K miles and decided they do not help, at least in my case. Have gone back to regular bars with no perceptible difference in comfort.

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I just picked a set up, getting the brake hoses routed today. I’ve been riding it for about 2 weeks on the trainer, and it does seem to be more comfortable. I was able to take out a spacer under the stem and drop the bars by 5mm over a shorter reach and drop bar. I also have the hoods turned in about 10 degrees, as that feels the most comfortable.

If you go that route, you definitely want to make sure that the bottom of the drops are level with the ground, and that the bottom of the brake levers are even with the bottom of the drops. I initially had them set pretty high, but wasn’t able to easily reach the brakes while in the drops even with the reach adjustment screws (Shimano DI2) cranked all the way in, so moved them down, and now I can get my middle finger wrapped around the lever to the first knuckle while in the drops. Also had the bar a little too tilted back, and it was straining my wrists to rest my palms on the tops.

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I went from a 40CM Zipp SL-70 Ergo (70mm reach, 125mm drop) with a 7-degree stem and the hoods straight ahead to the Coefficient RR (76mm reach, 127mm drop with a 6-degree stem and the hoods angled in about 10 degrees in. I was able to lower the stem by 5mm and it still feels like I’m reaching less for the bar.

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I have one bike already with an integrated front end. Built it myself (on the principle that I wanted to know how it all fitted together and I wanted to make sure it was done right - I’m not the fastest mechanic but I’m pretty solid and when I know it’s a bike I’ll be riding I have plenty of motivation to get it right however long it takes!). Also knew exactly what position I wanted on that bike, it’s a position I’ve used for several years and was able to ride a demo bike with my position dialled in to double check everything. Plus the bars in question could be swapped out at fairly sensible money (I.e. Not Roval or Enve money).

With all those precautions in place I’m very happy. Does look great having no cables visible, and if doing a full build from scratch it wasn’t that much extra work running cables through the bars in the context of having to bleed brakes, wrap bar tape, cut steerer, etc. Had no issues with it. I agree though that for anybody not sure what their position is it’s a terrible idea. And certainly hugely limiting if brands are selling bikes with integrated bars and no option to swap them for different sizes (e.g. Canyon who seemingly can’t or won’t even sell you a replacement bar).

I have used the coefficient rr bars for two seasons and love them. My thinking was like yours; hand issues let me to look for something more body friendly. The aero benefit, particularly in the out-front position, is icing on the cake (and real). The drop/reach is almost a perfect match for my favorite Deda RHM bars and the variety of hand positions on the rr is grand.

The highly-skilled fitter at lbs has them on all his bikes and is a big advocate. Also check out Colby Pearce’s web site and the Neil Stasbury video https://youtu.be/YAVhWehGoQE?si=oCstFWIGmK9Bjhg1

Just be aware that internal routing is worse than a pain with this bar!

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did you ever experiment with these? thinking of doing the same

Nope, they’re still in my parts bin. I’ve been using my gravel bike for everything including road, but I guess I got worried about going much narrower on a bike that I race in some pretty serious terrain.

I figured I’d put the 38s on my road bike, but it hasn’t come off of my trainer in the last year at all.

Sorry I’m no help!

Just to add one more observation:

I also picked the Ritchey Comp Streem in 38cm. Pretty good for the price, got them for $44. I’d recommend them for those looking for narrow alloy handlebars. The flat top and sweep angle makes them very comfortable. They’re also reasonably light (mine are 291 grams).