A Sub-5 Kilo Scott You Actually Want to Ride: Dangerholm Strikes Again

Dangerholm is back with a new build, and this time the Swedish super-bike creator has produced a sub-5-kilo Scott Addict RC.

The bike takes a stock Scott Addict RC frame, already a lightweight climbing bike to begin with, but then takes the spec list to the extreme to pursue the goal of creating the most ”normal” lightweight road bike ever.

There are lighter bikes that might appear at UK hill climbs and other climbing-specific events, but this design is intended to be a fully fledged high-performance road bike that weighs less than 5 kilograms.

“It could be argued that the age-old quest for lightweight road bikes has taken a bit of a backseat position in the last decade or so,” Gustav Gullholm, the person behind Dangerholm, said in the press release. “With the rise of aero bikes along with new trends such as wider tires, shorter cranks, and narrower handlebars, the classic ‘weightweenie’ focus simply isn’t as hot as it once was.

“But interestingly enough, there has never been a better time for lightweight bikes than now.

“Not to build the lightest bikes ever, perhaps, the days of rim brakes and narrow tires had some benefits in this regard. But never before could you build a really lightweight bike with such performance and ride quality as you can today.”

In addition to the incredible lightweight construction, the Dangerholm Sub Five Scott Addict has a full custom paint-scheme, as all Dangerholm creations have, with this bike featuring a black and white motif that is reminiscent of tattoo design.

Who is Dangerholm, and what makes his bikes unique? 

Dangerholm is the persona of Gustav Gullholm, who is a Swedish master bike mechanic. Over the past few years, Gullholm has become a niche internet bike celebrity through the Dangerholm brand as he continues to push the limits of bike construction and aesthetics across the cycling spectrum.

These include the newest Scott Addict RC project, but also an extensive collection of mountain bikes, gravel bikes, and unique combinations of the two genres. Pursuing light bikes is a key component of his custom builds, as he claims to have made the world’s lightest XC bike and the lightest 29″ DH bike.

Dangerholm and Scott have had a long-term relationship, as several of his souped-up custom Scott builds have escaped containment and gone viral in the bike world for their unique construction and striking looks. None more so than his Scott Scale RC Aero gravel race bike.

That build took a conventional Scott Scale Gravel, a gravel-oriented bike with a MTB platform with flat handlebars and a rigid fork, and transformed it. The final result was a gold-painted, drop-bar aero gravel racing machine, including massively wide rims with an inner width of 45 mm, an outer width of 52 mm, and a depth of 70 mm. All of this was configured to create the perfect monster-truck aero gravel racing bike that would bring a whole new level of speed to a gravel bike built around 2.25” tires.

While the Scott Addict RC released today is less of a departure from the norm than the Scott Scale, it is still very much a Dangerholm creation. Dangerholm is all about creating one-of-one bikes where every detail is carefully picked to meet a clear aesthetic or performance goal.

Putting parameters on the build to make it more than light 

For the Scott Addict RC Sub Five project, instead of finding the absolute end of the spectrum of light bikes, Dangerholm gave himself the task of finding the limit within his own parameters of what a good bike may be.

In addition to the bike having to weigh in at less than five kilograms, the bike also needed to check off the following list of demands:

• A 2×12 electronic drivetrain with reasonable gearing
• Minimum 28mm wide tires
• Modern wide rims for overall handling and performance
• Proper and powerful brakes that allow for good descending
• 1-piece aero cockpit to go with the sleek frameset design
• Real bar tape
• Total weight must include pedals, bottle cages, and computer mount

These are the key specifications that make this bike impressive. Instead of the Frankenbike creation made for hill-climbs, these restrictions are Dangerholm’s personal needs to have a bike that he himself would want to ride. It is also worth noting that this bike was made to fit Dangerholm, who weighs 80 kilograms (176 lbs) and is 183 cm (6’1”) tall.

Here is the full spec list of the bike, including the weight of each component that make up the 4,991.4 grams, or 11.0 pounds, of bike weight.

Complete specifications: 

Frame: SCOTT Addict RC HMX-SL L/56cm — 630.9 g

Fork: SCOTT Addict RC HMX-SL — 282.4 g

Headset: Syncros — 48.3 g

Spacers/cover: Syncros and Darimo — 22.5 g

Handlebar combo: Darimo Nexum Drag 100x360mm -6 degrees — 212.4 g

Bar tape: Ciclovation KOM with Extralite HyperPlug HD — 16.8 g

Brakes: SRAM RED AXS — 632.9 g

Rotors: Carbon-Ti X-Rotor SteelCarbon 3 160/140mm — 146.5 g

Adapters: Bike Ahead Composites The Fixer + Carbon-Ti steel shim — 39.3 g

Rear derailleur: SRAM RED AXS — 276.7 g

Front derailleur: SRAM RED AXS — 171.6 g

Chain: SRAM RED — 231.0 g

Cassette: SRAM RED 10-30T — 194.9 g

Chainrings: Carbon-Ti X-CarboRing X-AXS 50-37T — 139.8 g

Cranks: GrigioCarbonio Road T1000 170 mm — 256.3 g

Bottom Bracket: Extralite Hyper BB Ceramic (incl. brake hose guide) — 38.9 g

Pedals: Wahoo Speedplay Nano (tuned) — 150.6 g

Wheels: NonPlus Primaro Fusion hubs, Light Bicycle Airia 32 rims — 866.7 g

Tires: Schwalbe Aerothan 29 mm — 342.5 g

Tubes: Tubolito S-Tubo-Road — 41.0 g

Seat post: Darimo — 117.7 g

Saddle: Gelu K3 — 39.2 g

Bottle cages: CarbonWorks including bolts — 19.4 g

Computer mount: Alpitude including bolts — 16.5 g

If you want to learn more about the Dangerholm experiment, check out our podcast with the man himself here.