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FSA K-Force Compact carbon handlebar



Very light handlebar with a really comfortable shape

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The FSA K-Force Compact, as the name suggests, has a shallower drop (125mm) than a lot of handlebars, including FSA's own Ergo bar. What that means is the transfer from the hoods to the drops is less extreme, and that makes it ideal for people who want who don't have the flexibility to ride in the deep drops of some handlebars.

The reach (80mm) is also short with a good rearward extension of the drop. So as well as the shallow drop, the reach has been reduced, so you don't have to stretch quite so far.

FSA have also given the drops a slight outward flare (4 degrees) that delivers good clearance between the wrist and top corner of the handlebar, so that you never bounce into the tops when you're riding in the drops.

The shape of the handlebar makes it really useable, and we bet more people would make better use of the drops if they had a compact handlebar on their bike. I use the drops plenty when I'm riding, and almost exclusively when racing, especially crits, and I do much prefer the compacts as they offer enough aero advantage without challenging my lack of flexibiltiy to the same extent some deeper handlebars do.

The K-Force Compact handlebar achieves its low weight thanks to a unidirectional carbon fibre construction, with Kevlar reinforcing. There's an extended wide section either side of the handlebar providing enough space for mounting a computer, out-front Garmin mount, lights or even clip-on aero bars.

Fitting the bars was easy. There are cable grooves underneath the bar for the gear and brake cables to be routed, which provides a neat bar tape wrap. The key clamp areas are reinforced and with a textured material to prevent slippage.

The only detail that niggles with me is the angled lip along the tops. It's clearly there to provide a flush fitting bar tape with the central bulge, but it looks unsightly if you prefer to finish your bar tape with a nice straight line.

The K-Force Compact handlebars proved as stiff as any handlebars from 3T, PRO or Thomson, though perhaps displaying a hit more flex when really pushed hard, especially during out of the saddle sprints.

Best of all is the comfort the shape provides. Here is a handlebar that you can comfortably ride in the drops for long durations, without suffering the sore back that deeper and shorter reach handlebars are more likely to induce.

The only real downside, and it's a big one, is the massive price. Yes it's an expensive handlebar, but most carbon handlebars share the same criticism. You're paying for that lack of weight remember. Fortunately, FSA offers the same compact shape in the SL-K guise which is a more affordable carbon sibling, and then there is the Omega Compact handlebar which is just £35, with the same shape.

So there you go. If you want a light handlebar the K-Force delivers, but if you fancy a compact handlebar, there are less expensive options.

Three widths (40, 42 and 44cm) are available, measured centre-to-centre, all with a 31.8mm centre clamp diameter. You can choose from red or black colour options.


Very light handlebar with a really comfortable shape

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Make and model: Full Speed Ahead K-Force Compact Handlebar

Size tested: 420mm

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

The K-Force Compact uses the same materials and construction as the New Ergo, with unidirectional carbon fiber reinforced with Kevlar. The shape is our newest compact design, with a shallow drop, short reach and slight outward flare on the drops. The top section features an extra-wide bulge extending either side of the stem, ideal for mounting clip-on aero bars or other accessories. Clamp areas have additional reinforcement and a textured finish to avoid slip. Gear and brake cables can be routed through the double-width cable groove, shaped to improve stiffness and fatigue resistance.

Tell us some more about the technical aspects of the product?

Newest-generation 'Compact Design' for improved reach and performance

Continuous UD carbon/kevlar composite construction

Wide 110mm center section for clip-ons and accessories

Double-width single cable groove design improves stiffness and fatigue life

Reinforced and textured clamping areas

Carbon fiber UD weave-gloss finish

Ø31.8mm x W400, 420, 440mm(c-c)

125mm drop, 80mm reach

4° outward bend

Color graphics options - Red/White, Black/Red

Weight - 210 grams (400mm)

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for weight, if applicable:

It's light, but not the lightest; the same price 3T Tornova Team Carbon handlebar weighs 191g and spend a bit more and the Deda Superleggera Black Bar is just 180g.

Rate the product for comfort, if applicable:

As well as the shape, which I absolutely love, the handlebar provides just a hint of flex that makes it really comfortable when bashing across rough roads.

Rate the product for value:

Tell us how the product performed overall when used for its designed purpose

Brilliant performance for those who want a shallow drop handlebar.

Tell us what you particularly liked about the product

The drop and reach is really agreeable, and it looks good too. Nice weight as well.

Tell us what you particularly disliked about the product

The angled bulge on the tops that doesn't align with the bar tape.

Did you enjoy using the product? Yes.

Would you consider buying the product? Yes.

Would you recommend the product to a friend? Yes.

Anything further to say about the product in conclusion?

An expensive, but lightweight, stiff and comfortable handlebar that has a really nice shape. And looks great too.

Overall rating: 8/10

About the tester

Age: 31  Height: 180  Weight: 67

I usually ride:   My best bike is:

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, time trialling, cyclo cross, commuting, touring, mtb,


David worked on the tech team from 2012-2020. Previously he was editor of and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds, and you can now find him over on his own YouTube channel David Arthur - Just Ride Bikes

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