$623.00
Coefficient RR
(Road Race)
Carbon Handlebar
The Coefficient RR handlebar is purpose-built for riders that race frequently on pavement and/or gravel.
Free Computer GPS Mount with every RR for every retail customer: Please specify which mount you need when ordering. Please note that RR bars come with a pre-installed Garmin mount. In addition, if you plan on attaching a camera or front light to the handlebar, please be sure to order our custom GoPro mount.
NOTE: Order the same size handlebar that you usually ride. So if you ride a 42, then order our bar in size 42. And keep the same length stem!
RR handlebars are UCI legal. Do note, though, the any use of the middle part of the handlebars as additional point of support will be considered as a violation of UCI Regulation 2.2.025: PART 2 - ROAD RACES (ctfassets.net)
Note we have a quantity of 44cm bars that cannot be internally routed. These are available in the drop down at a reduced price.
Ideally Suited For:
- Road Racing & Chasing City Limit Signs
- Aggressive Gravel Riding & Racing
- ITU Draft Legal Triathlon Racing
Both the AR and RR feature Coefficient aero-ergonomics that make it easier to ride faster on the noon ride or an all-day ride. With a deeper drop and increased rigidity, the RR promotes a more aggressive, aerodynamic riding position. Our patented Coefficient SWOPE (sloping, sweeping bar tops) carries over from the AR to relax your upper body and improve respiratory and neuromuscular function.
The RR Bar is Shimano Di2 compatible. It not only accepts the bar end junction, it includes exit holes for remote shifter buttons in four locations (2 each side) on the underside of the tops. It's also compatible with SRAM Blips.
Computer Compatibility
In partnership with Bar Fly Bike, the Coefficient RR includes your choice of the following cycling computer mounts: Garmin, Wahoo, Lezyne, Polar, Cateye, Bryton, Joule, Hammerhead, Magellan and Mio. We also offer a GoPro camera mount that attaches to the underside of the computer bridge. Replacement mounts can be ordered as well.
Lightweight Materials & Dependability
When comparing handlebar weights keep in mind that the average off-the-front computer mount weighs in at 30 to 40 grams. The Coefficient RR is moulded using Toray unidirectional carbon fibre and tested to the highest ISO international standards for professional road and mountain bike racing.
Road Cycling Academy Coverage
Ride Media's Impressions
Proportional Sizing & Specifications
| Available Sizes (C to C at hoods) | 36cm | 38cm |
40cm | 42cm | 44cm |
| Clamp Diameter | 31.8mm | ||||
| Drop | 127mm | ||||
| Reach | 77mm | ||||
| SWOPE (sweep + slope) | Sweep: 12 degrees / Slope 15 degrees | ||||
| Flare | 7 degrees | ||||
| Drop Width (C to C) | 39cm | 40cm |
42cm | 44cm | 46cm |
| Stem to Computer (C to C) | 87mm | ||||
| Clamp Area Width | 56mm | ||||
| Aero Top Width | 43mm | 43mm | 45mm | 47mm | 49mm |
| Weight (grams) | 305 | 310 | 315 | 320 | 325 |
Installation Instructions
* Please Note: GPS Unit shown in photography is not included with the Coefficient RR.
International customers:
Our love for you knows no borders...but please note that all goods that are imported from the USA into other countries may be subject to import duties and taxes, and Coefficient Cycling handlebars are no exception. Specific amounts vary between countries, so we urge you to check with your government border services agency website prior to ordering, so there are no surprises for either of us. Thank you!
I have these on 2 bikes that vary between road and gravel. The comfort, control and design of these are top notch.
When I first seen the bars I thought they were going to be a lot for me and my position on the bike but in reality I dig them. I haven’t had a more comfortable aero position ever. Something about how the bars form perfectly where my arms rest on them. I get to be tucked clean on the hoods.
The drops feel very sturdy as well. I like that they flare out a bit which increases my feeling of stability.
I use Di2 so I don’t really have a problem with cables but routing the hoses was a bit challenging but not the end of the world.
My favorite part of the bars is its trident like feature I feel powerful when looking down at them. It took me while to realize I had to get the go pro mount for my lights separately but luckily the bars have enough space to fit a mount for one. They even have enough space to carry a little friend with you across the desert :)
I read many review and watched a few videos and also saw a set on a friends bike. Everything I read and watched was very positive. My friend raved about them and how comfortable they are when riding, so I purchased it. I really like the overall quality and stiffness, they were shipped and received quickly, and well packed. I have no personal experience with it yet, as I am waiting to build up a bike in a few weeks. But, I have no reservations or doubt about the outcome!
I've practiced physical therapy and performed clinic bike fitting for 20+ years and decided to finally try the Coefficient RR bars on my new bike. Unbelievable. Seriously. Yes the ergonomics are obviously SO good, Just no doubt. My favorite part.....the center bar hand position wrapping my thumbs through the space behind the computer. I didn't see this in any of the YouTube reviews and to me it's HUGE. Thanks for developing a great product!!
I was determined not to buy carbon handlebars anymore since my FSA nano carbon broke after ten years without any crash or falls, probably because I was pulling too much standing, on hard climbs, corrected technic since..! But when I saw Aussie bike fitter Neill Stanbury showing and talk about the Coefficient Cycling RR handlebar on his YouTube charnel RCA, that spoke to me, exactly what I was looking for, finally..! I thought the compagny should put that video on their website, what I found out purshasing the product..!
Apart from the clever design, the carbon seems of high grade, that ~10° incline flat top is so comfortable on sitting climbs, in fact everything is on Stanbury's video, no more words, it works, perfectly ergonomic..!
Thank you Coefficient Cycling..!
