Gustav Gullholm is known across the mountain biking world for two things: his outrageous lightweight builds and heavy-duty quads.
The Swedish custom bike builder, who uses Dangerholm as his industry moniker, has produced yet another astonishing project bike. This time, a Dangerholm interpretation of what the ultimate gravel bike would be, for a mountain biker.
As with his other project bikes, the frame is sourced from Scott. In this case, a Scale 910. Using a lightweight XC hardtail is a sensible place to start if you want to build something between a gravel and monster-cross bike.
Dangerholm is all about weightweenism. As such, he removed all the paint and even the front derailleur mount.
Internal cable routing is a big theme with Dangerholm’s builds, especially brake cables. Despite desperately wanting to route the front brake inside the Trek 1120 rigid fork’s left leg, but could not find a workable solution.
No steel spokes here
Rolling stock comes compliments of German wheels and tires with Swiss internals. Bike Ahead Composites Biturbo RS supply the hoops, which are monocoque six-spoke carbon-fiber wheels, featuring a generous 27mm internal rim width and using proven DT Swiss hub internals.
Continental Speed King RS 2.2 inch tires have very little in the way of tread, but Dangerholm wanted the lowest possible rolling resistance. Interestingly, the tires run Tubolito tubes due to the supple RaceSport casing's lower reliability when run tubeless.
This Dangerholm gravel bike uses a Syncros Fraser iC SL cockpit, which means an integrated handlebar and stem combination. These have been modified and reinforced with small inlet ports to hide the brake cables, as they guide directly into the handlebar.
Speaking of brakes, the Dangerholm gravel build uses Trickstuff Piccola carbon stoppers, with direct-mount calipers. Arguably the lightest weight brakes available they are paired with Trickstuff Dächle UL rotors.
Only a wireless drivetrain would do, on a Dangerholm build, assisting in achieving that clean aesthetic. SRAM’s AXS is cranked by a 40T Garbaruk chainring, connected to a wide range cassette, from the same brand. Instead of the standard SRAM AXS shifter, Dangerholm has specced a Zirbel Twister WE01 for a super low profile shifter, these plug into a SRAM BlipBox which has been hidden within the handlebar.
To reduce friction, where possible, Dangerholm used one of the best MTB bottom bracket bearing options available, courtesy of Kogel, which were also fitted to the rear derailer pulley wheels. Connecting rider to bike, are Xpedo M-Force 8 Ti pedals.
There is no question that Dangerholm’s Scott Scale gravel bike looks phenomenal. But what does it weigh? An incredibly minimal 16.35lb (7.5kg). And yes, that weight includes pedals…
Tech Specs: Dangerholm’s Scott Scale Gravel bike
- Frameset: Scott Scale 910 Size Medium, no cable ports, no FD mount
- Fork: Trek 1120 with optional front rack
- Headset: First/Syncros semi-custom setup
- Handlebars/Stem: Syncros Fraser iC SL 90mm x 720mm, custom routing/reinforcement
- Grips: Syncros Foam
- Seatpost: Schmolke Carbon TLO 400mm
- Saddle: Tune Speedneedle Twenty20 alternatively Berk Composites
- Brake: Trickstuff Piccola Carbon and Trickstuff Dächle UL rotors 160mm/180mm
- Rear derailleur: SRAM XX1 AXS with Kogel Kolossos ceramic oversize pulley wheel system
- Shifters: Zirbel Twister WE01 custom setup
- Chain: SRAM XX1
- Crankset: SRAM XX1 Eagle DUB with Kogel preload adjuster and Garbaruk 40T chainring
- Bottom bracket: Kogel Ceramic
- Cassette: Garbaruk 12-speed 10-48T
- Wheelset: Bike Ahead Composites Biturbo RS
- Tires: Continental SpeedKing RS 2.2 inch
- Inner tubes: Tubolito
- Pedals: Xpedo M-Force 8Ti
