Deda Superleggera RS Bar & Superleggero RS Stem review

Light front end

BikeRadar score4/5

Superleggera is a term coined by an Italian automotive coach builder long before the advent of carbon fibre. It means super light, but 'super light' is still a relative term.

Superleggera RS handlebars

The Superleggera RS carbon bar is essentially the Superleggera bar with a limited edition finish. It uses high modulus HR40 carbon fibre and a resin that Deda says allows a high level of compaction, saving weight. It takes the form of Deda’s popular Rapid Hand Movement (RHM) bend, which is a compact shape with a smooth ergonomic curve that makes swift positional changes simple.

Our bar measures 46cm outside to outside, or 44cm centre to centre, and weighs 202g, putting it among the lightest available. Each side has a constant 31.7mm diameter top with no central bulge, providing a wide purchase. Beneath, there’s a large tunnel for internal routing. At two thirds distance from the stem, the bar gently curves forward, and as it turns 45 degrees towards the drop, it slims to a conventional 24mm diameter.

The drops are square – at 90 degrees – to the tops, and there’s no flare. This makes the drops with their 75mm reach and 130mm drop more accessible, as the rounded upper bend allows extra wrist clearance when leaning the bike from side to side.

There’s no shortage of rigidity when pulling on the bar during a steep climb or sprint, and we couldn’t detect any twist from the stem. This translates to perfect steering accuracy and response, with the confidence that your efforts are never wasted. The Superleggera RS bar’s built more for speed than comfort, but still nullifies road buzz, and takes the edge off bigger bumps, with a stiff, purposeful feel.

Superleggero RS stem

Deda claims the forged 7050 aluminium Superleggero RS stem is the lightest available, and our 110mm example is an impressive 103g, with twin slotted faceplate clamps and a minimal stem clamp at each end of the slim tubular body, plus titanium bolts. The surface is coated with Duracer, a ceramic hardening treatment to guard against corrosion and wear.

Ritchey’s WCS C260 stem has a claimed weight of 103g (unknown length), with five steel bolts for under £100, so don’t worry about ‘lightest’ claims. But if you want a special cockpit, factors such as performance, looks and fit will take precedence.

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

Robin Wilmott

Tech Writer, Tech Hub, UK,
Robin began road cycling in 1988, and with mountain bikes in their infancy, mixed experimental off-road adventures with club time trials and road races. Cyclocross soon became a winter staple, and has remained his favourite form of competition. Robin has always loved the technical aspect of building and maintaining bikes, and several years working in a good bike shop only amplified that. Ten years as a Forensic Photographer followed, honing his eye for detail in pictures and words. He has shot at the biggest pro events since the '90s, and now he's here, drawing on all those experiences to figure out what makes a bike or component tick.
  • Age: 45
  • Height: 178cm / 5'10"
  • Weight: 75kg / 165lb
  • Discipline: Road, cyclocross, time trials
  • Beer of Choice: Sierra Nevada Pale Ale

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