Is this the lightest disc brake road bike in the world?

Reported to weight just 5.7kg the bike was built in a joint collaboration between Cannondale and the EC1 Collective. The project was started by Mike Gluckman, the founder of the EC1 Collective, who approached Cannondale because of its reputation for producing very light frames. Gluckman chose a SuperSix Evo HiMod as the foundation of the project.

Paint adds significant weight to a frame. To combat this, the first step was to have the frame stripped of its paint and then resprayed with minimal graphics. A process which according the Gluckman, "saved 145g believe it or not!"

>>> Review of the Cannondale SuperSix Evo HiMod

Gluckman explained, "we then added back around 60g in paint and lacquer. All paint work done by Fat Creations."

In order to save further weight, component choice has been very carefully considered. Cannondale's proprietary 'Spiderings' are very light, but to save weight further, a single 44t chainring has been employed in a one by setup.

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In place of the standard shifters, the lightweight build features cyclocross style top tube shifters orientated in a novel position on the hoods. To change gear, SRAM Blip buttons have been ingeniously placed under the bar tape.

>>> SRAM Red eTap review

Perhaps not the most comfortable perch, the Tune Komm-Vor Plus Saddle is reported to weigh just 79g. Other ridiculously light finishing kit includes Schmolke SL bars and a Tune stem.

The custom build features lots of nice details, such as the custom made EC1 Collective boltless top cap, by Kapz Guru.

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The record for the lightest disc brake equipped road bike is currently held by the Focus Izalco Max Disc and stands at 5.5kg. Gluckman described how "the goal to build the worlds lightest road disc bike was not necessarily our target although we realised the potential to reach beyond the magic 5.5kg set by the Focus Izalco Disc. In the end we opted for deeper section rims because they looked more radical and began to let go of the record attempt."

>>> Review of the Focus Izalco Max Disc (video)

That said, it could easily be done. At 1,400g we know we could shave off a decent chunk from the wheels. These are clinchers too so a pair of tubs will save a further 100g or so, especially over the heavier tyres we eventually went with. "

A list of components are as follows:

Frame: New SuperSix EVO Disc, BallisTec Hi-MOD Carbon, Di2 Compatible, SPEED SAVE, PressFit BB30a

Fork: New SuperSix EVO Disc, SPEED SAVE, BallisTec Hi-MOD full Carbon, 1-1/8" to 1-1/4" steerer, integrated crown race, 100x12mm thru-axle

Headset: SuperSix EVO, 1-1/4" lower bearing, 25mm carbon top cap

Bars: Schmolke Roadbar Oversize Evo TLO

Stem: Tune Geiles Teil 4.0 OVERSIZE 17°, 110mm, black

Stem cap : Kapz boltless etched

Front Mech: n/a

Rear Mech: Sram Red Etap

Shifters : Sram Red Etap Blip shifters

Chainset: Cannondale HollowGram SiSL2, BB30a, w/ OPI SpideRing SL, 48

Bottom Bracket: Cannondale Alloy Press Fit 30

Chain: Shimano HG901, 11-speed

Front Brake: Tune / BrakeForceOne Kill Hill

Rear Brake: Tune / BrakeForceOne Kill Hill

Rims: Tune Airways 41 Disc Clincher

Front Hub: Tune Princess Skyline straight pull 12mm bolt through disc 24h

Rear Hub: Tune Prince straight pull QR5 disc

Spokes: Sapin CX Ray

Tyres: Clement LCV Folding 25mm
Seatpost: ENVE 25.4mm

Saddle : Tune Komm-Vor Plus Saddle