Coefficient Road Race Handlebar review

An innovative out-front bridge finds a loophole in the UCI’s ‘invisible aerobar’ ban – but what’s this new position like to ride?

Cycling Weekly Verdict

The Coefficient Road Race handlebar has an innovative design with its out-front bridge, intended to provide a UCI-compliant hand position similar to the recently banned ‘invisible aerobars’. I found the bridge didn’t extend out quite far enough, and so wasn’t a massive improvement over simply gripping an ordinary set of bars near the stem clamp. But the ergonomics of the drops make for a highly comfortable handlebar that we can recommend – if it happens to be within your budget.

Reasons to buy
  • +

    Ergonomic shape

  • +

    Out-front bridge adds extra position

  • +

    Drop notch helps with descending

  • +

    Lots of options for internal routing

  • +

Reasons to avoid
  • -

    Bridge position isn’t a massive step up over just holding the centre of the bars

  • -

    Difficult to mount certain attachments such as bike lights

  • -

    High price

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

Perhaps the most striking element of the Coefficient Road Race Handlebar is the innovative out-front bridge which provides an additional hand position – and one that takes you some of the way to replicating the ‘invisible aerobar’ position recently banned by the UCI.

Although the handlebar is called the Road Race, there are aspects of this bar that can be enjoyed by many styles of rider.

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Stefan Abram
Tech features editor

After winning the 2019 National Single-Speed Cross-Country Mountain Biking Championships and claiming the plushie unicorn (true story), Stefan swapped the flat-bars for drop-bars and has never looked back. 

Since then, he’s earnt his 2ⁿᵈ cat racing licence in his first season racing as a third, completed the South Downs Double in under 20 hours and Everested in under 12.

But his favourite rides are multiday bikepacking trips, with all the huge amount of cycling tech and long days spent exploring new roads and trails - as well as histories and cultures. Most recently, he’s spent two weeks riding from Budapest into the mountains of Slovakia

Height: 177cm

Weight: 67–69kg