4ZA Cirrus Pro bar/stem – in brief review

High-end carbon road cockpit

Our rating 
4.0 out of 5 star rating 4.0
GBP £229.98 RRP
4ZA Cirrus Pro carbon road cockpit

Our review

Forza's range-topping cockpit is stiff, light and very good at handling vibrations, but it's not cheap
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Belgian component brand 4ZA’s top-of-the-range handlebar/stem combination offers a low weight, great standard drop bar with a nicely contoured shape. The semi-flattened top is comfortable to hold and the neat cable-run channels complete a well-thought-out design.


The neatly produced stem is similarly no-fuss, just a very well made, optimal performer that offers a competitive weight for not much cash. Sadly, the same can’t be said of the bar’s price, but in its favour is the fact it’s surprisingly stiff for such a light model. 

It also does a very good job of reducing high-frequency vibrations from poor road surfaces, so it’s an impressive all-rounder with a near-premium price thats not too hard to swallow’


This article was originally published in Cycling Plus magazine, available on Apple Newsstand and Zinio.

Product Specifications


Name Cirrus Pro carbon bar/stem (13)
Brand 4ZA

Description Sizes available: Bar - 40/42/44cm; stem - 70/80/90/100/110/120/130mm
Weight (g) 340