Another impossibly light unit from KCNC, this flat bar weighs in at a barely believable 119g. The Bone is constructed from T-7451 Scandium alloy, is 600mm wide and comes in standard and oversized clamp diameters.
I had the standard unit which meant digging around in the bottom of the parts drawer for a stem that would fit, but once fitted to a flat bar town bike the bars were very well behaved, feeling stiff for their weight and wide enough for good control. I transferred them to the MTB too and teamed them up with KCNC's equally feathery bar ends. The look was certainly retro but I had no issues with the Bones off road, they were happy on the trails and even tackled a bit of downhill run with no issues.
Obviously the lack of heft means you have to be a bit careful with them. After a few months of testing I've managed to put a hole in one of the bar ends from a collision with a wall. That's not really an issue with a bar end but if it was the bars I'd punctured they'd have to be retired, and I'd guess the wall thicknesses aren't all that different.
Longevity is one thing but KCNC are mostly about the weight. If you're looking to shave grams and you can live with the fact that you'll need to take care of your bike then they represent good value for money. You'll pay a lot more for a Carbon bar this light.
Incredibly light flat bar for the careful weight weenies out there
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road.cc test report
Make and model: KCNC SC Bone flat bar
Size tested: 25.4mm
Did you enjoy using the product? Yes
Would you consider buying the product? No, but my weight saving priority is my stomach...
Would you recommend the product to a friend? Yes if they were a weight weenie
About the tester
Age: 37 Height: 190cm Weight: 96kg
I usually ride: whatever I\\\'m testing... My best bike is: Genesis Equilibrium with Ultegra 6700
I've been riding for: 10-20 years I ride: Every day I would class myself as: Experienced
I regularly do the following types of riding: time trialling, cyclo cross, commuting, sportives, general fitness riding, fixed/singlespeed, mtb, Mountain Bike Bog Snorkelling, track
Dave is a founding father of road.cc, having previously worked on Cycling Plus and What Mountain Bike magazines back in the day. He also writes about e-bikes for our sister publication ebiketips. He's won three mountain bike bog snorkelling World Championships, and races at the back of the third cats.