"Where have Coefficient bars been for the last 15 years? So many beneficial hand placement options. Those notches on the drops are so practical. Endless Gains..."

Ian Boswell
Wahoo Frontiers Project | 2016 Vuelta d'España Stage Winner

"The Coefficient AR's shape encourages external shoulder rotation – a superior position for core & thoracic stability, breathing mechanics, nervous system function & grip strength."

Colby Pearce
Pearce Coaching & Fitting | World Hour Record Holder: Masters 45-49 | Pan Am & US National Champion; Olympian

"...I quickly noticed a big change when riding in the drops along a stony towpath. This bar has the most effective vibration isolation of any that I've used..."


Jez Ash
Road.cc

"After 3 months, I still appreciate how much better it rides. Every. Single. Ride. I used to spend 80% of my time on the hoods, now it’s like 50% on the tops and 40% on the hoods. Narrow is aero, and the Coefficient bars pocket my elbows naturally at my sides, not like chicken wings in the wind.”

Bill Brissmann
2x 2019 Masters Track World Champion | All-Things Racer: Road, Dirt, Boards

“I love the Coefficient bar! The slope and sweep really allows the wrists and shoulders to sit more naturally. This, in turn, is improving my breathing and position on the bike..”

Andrew Randell
2002 Canadian National Road Race Champion | Cofounder & Coach, The Cycling Gym, Toronto

"Good feel when pulling on them when climbing seated; for sure less 'deadness' felt in arms/shoulders; great extra comfort when on the tops.”

Philip Deeker
Endurance event rider and organizer | www.centcolschallenge.com

"I have been amazed by how good the tops feel! The thumb notch in the drops is also a game-changer in sprints and on dirt descents. You are definitely on to something really good here!"

Chris Burnham
BG Master Bike Fitter | International Bike Fitting Institute Certified | USA Cycling Power Certified Level 1 Coach

“I have been riding the Coefficient AR for the last 3 months and just purchased two more! Ergonomically, Coefficient is the most comfortable drop-bar shape I have ever ridden.”

Richard Bryne
Co-founder & CEO | Speedplay, Inc. | www.speedplay.com

"I'm not going back to "normal" bars. Everything is right about the Coefficient bars."

Al Clark
Sr. Director, Kenda Tires North America