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the captain

A30

The Captain -   A capable, adaptable, self-confident bike that’s just the right mix of on and off-road. The geometry is nimble enough to still have that race bike like feel while giving you a wide tyre option to explore new frontiers. Did we mention its built out of durable and tenacious 3AL/2.5V titanium and you can choose unique color options? We think we might just have a candidate for your ‘one bike for life’.

Design Details

Fast road bike and capable enough

The thinking behind this bike was simple - fast AND capable enough.

Since the evolution of disc brakes on road bikes the capabilities of drop bar road bikes have increased infinitely. Removing the restrictions inherent with the reach and clearance of traditional rim brakes now means we can build bikes with larger clearances and better off-road capabilities. Our design brief was to take advantage of disc brakes to keep a fast road bike geometry with just enough capability off-road.

So what is capable enough ?

When we designed our first Serk Adventure bike in 2015 it was based around 35C tyres. Back then there wasn’t much else wider available in 700C and 35 was considered wide. We rode that bike in some really rough terrain and were blown away by the types of adventures that were possible with even 35C tyres.

If we could add 35C capability to our regular road bike without compromising its speed and handling extensively then this was our sweet spot for capability.

Keeping it fast.

To have this capability and keep it fast we developed our own proprietary fork with just enough clearance but still retaining a relatively short (compared to most large tyre adventure bikes) axle to crown measurement. This keeps the front end low and tight and results in a fast handling bike. Out the back we lengthened the chain stays just enough to accommodate bigger tyres but not too much that the bike started to feel slow.

T47 Bottom Bracket

We’ve adopted T47 across the Serk Titanium line. The standard is here to stay and allows you to fit almost all the standard sized cranks on the market creak free. T47 is threaded which virtually eliminates bottom bracket creaking. It also allows for much easier service and installation.

Semi Integrated Cabling

We love the clean atheistic of internal cabling. We hate complicated systems and heavy cast parts that add unnecessary weight to our bikes. We have a simple lightweight internal gear cabling system which can neatly accommodate di2 wiring by switching out the included di2 ports. The hydraulic hose is semi integrated - creating a clean look with simple port construction to minimize weight.

Titanium Rear Hanger

Our titanium rear hanger is cast from a solid piece of titanium block. Being removable means its possible to develop a new version in the future if a newer and better thru axle system is released in the years to come.

Geometry
Colour Options

Looking for the ultimate bling?
Request an Enve package.

We didn't want to ruin the simplicity of the bike with a huge downtube logo. Instead we went for an understated head tube logo

No rear stay brake bridge creates simple and sleek lines.

No creak T47 bottom bracket with delicate logo detailing.

Our Frontier Cycling pattern is detailed on the stem cap as a subtle reminder of the geometric patterns of central asia.

We spend a lot of time curating the specs of each bike to balance performance and maintain a minimal aesthetic.

Our bar end plugs are crafted from a solid piece of wood by our partners at KEEP Leather Studio.

frameset

RMB 16,962

INCLUDES CUSTOM PAINT

Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 32+ tyres*
Di2 Compatible
T47 BB

Fork : Serk Carbon All-Road*
12x100mm

Includes Serk Headset Semi-integrated, seatpost clamp, thru-axles, expander, Serk topcap

*measured 35mm width.
*XS size frame uses Enve 50mm offset fork (extra charges apply)

105

RMB 25,726

INCLUDES CUSTOM PAINT

Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 32+ tyres*
Di2 Compatible
T47 BB

Fork : Serk Carbon All-Road*
12x100mm

Serk Headset Semi-integrated

*measured 35mm width.
*XS size frame uses Enve 50mm offset fork (extra charges apply)

Wheelset : Shimano RS-171
24mm deep 23mm wide
Tubeless Compatible
Shimano Hubs
Centre lock disc
Tyres : WTB Exposure 30

Drivetrain - RD-R7000 / FD-R7000

Crankset : FC-R7000 50/34
Brakeset : BR-R7020 hydraulic
Shift Levers : ST-R7020
Cassette : CS-R7000 11-28
Disc : SM-RT54 160mm/140mm

Handlebars : Fizik R5
Stem : Fizik R5
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5

ULTEGRA DI2

RMB 38,413

INCLUDES CUSTOM PAINT

Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 32+ tyres*
Di2 Compatible
T47 BB

Fork : Serk Carbon All-Road*
12x100mm

Serk Headset Semi-integrated

*measured 35mm width.
*XS size frame uses Enve 50mm offset fork (extra charges apply)

Wheelset : Serk Carbon
35mm deep 28mm wide
Tubeless Compatible
Serk Centre Lock Hubs
Sapim CX ray spokes
Tyres : Vittoria Corsa 25C

Drivetrain - RD-R8050 / FD-R8050

Crankset : FC-R8000 50/34
Brakeset : BR-R8070hydraulic
Shift Levers : ST-R8070
Cassette : CS-R8000 11-28
Disc : SM-RT800 160mm/140mm

Handlebars : Fizik R5
Stem : Fizik R3
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5

DuRA ACE / ENVE

RMB 49,335

INCLUDES CUSTOM PAINT

Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 32+ tyres*
Di2 Compatible
T47 BB

Fork : Serk Carbon All-Road*
12x100mm

Serk Headset Semi-integrated

*measured 35mm width.
*XS size frame uses Enve 50mm offset fork (extra charges apply)

Wheelset : Serk Carbon
35mm deep 28mm wide
Tubeless Compatible
Serk Centre Lock Hubs
Sapim CX ray spokes
Tyres : Vittoria Corsa 25C

Drivetrain - RD-R9150 / FD-R9150

Crankset : FC-R9100 50/34
Brakeset : BR-R9170 hydraulic
Shift Levers : ST-R9170
Cassette : CS-R9150 11-28
Disc : SM-RTRT900 160mm/140mm

Handlebars : ENVE Aero Road
Stem : ENVE Aero
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5

Specs are subject to availability from our suppliers and may change from time to time.