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 it's 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’.
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 aesthetic 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.
frameset
RMB 18,300 / US$2614
IN STOCK STARTING FROM
Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 35mm tyres*
Di2 Compatible
T47 BB Shell
Fork : Serk Carbon All-Road*
12x100mm
Includes Serk Headset Semi-integrated, seatpost clamp, thru-axles, expander, Serk topcap
*measured 35mm width.
105 di2
RMB 32,100 / US$4585
IN STOCK STARTING FROM
Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 35mm tyres*
Di2 Compatible
T47 BB Shell
Ceramic T47 BB included
Fork : Serk Carbon All-Road*
12x100mm
Serk Headset Semi-integrated
*measured 35mm width.
Wheelset : Serk Carbon DB35
35mm deep 21mm wide
Tubeless Compatible
Serk Centre Lock Hubs
Sapim spokes
Tyres : Vittoria Rubino Pro 28mm
Drivetrain : R7100 105 di2
Crankset : FC-R7100 105 50/34t
Brakeset : BR-R7170 105
Shift Levers : ST-R7179 105 di2
Cassette : CS-R7101-12 105 11-34t
Disc : RT70-SS 160mm/140mm
Handlebars : Zipp Service Course
Stem : Zipp Service Course
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5
FORCE AXS
RMB 39,900 / US$5700
IN STOCK STARTING FROM
Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 35mm tyres*
Di2 Compatible
T47 BB Shell
Ceramic T47 BB included
Fork : Serk Carbon All-Road*
12x100mm
Serk Headset Semi-integrated
*measured 35mm width.
Wheelset : Serk Carbon DR35
35mm deep 24mm wide
Tubeless Compatible
Serk Centre Lock Hubs
Sapim CX ray spokes
Tyres : Vittoria Corsa
Drivetrain : Force AXS 2x12
Crankset : Force 48/35t
Brakeset : Force
Shift Levers : Force AXS
Cassette : Force 10-33t
Disc : CLX-A1 160mm/140mm
Handlebars : Zipp Service Course SL
Stem : Zipp Service Course SL
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5
ULTEGRA DI2
RMB 44,900 / US$6400
IN STOCK STARTING FROM
Titanium 3Al/2.5V
Flat mount disc brakes
Rear 12x142mm
Clearance for 35mm tyres*
Di2 Compatible
T47 BB Shell
Ceramic T47 BB included
Fork : Serk Carbon All-Road*
12x100mm
Serk Headset Semi-integrated
*measured 35mm width.
Wheelset : Serk Carbon DR35
35mm deep 24mm wide
Tubeless Compatible
Serk Centre Lock Hubs
Sapim CX ray spokes
Tyres : Vittoria Corsa
Drivetrain - RD-R8150 / FD-R8150
Crankset : FC-R8100 50/34
Brakeset : BR-R8170
Shift Levers : ST-R8170
Cassette : CS-R8100 11-34 12 sp
Disc : RT-MT800 160mm/140mm
Handlebars : Zipp Service Course SL
Stem : Zipp Service Course SL
Seatpost : Serk Carbon 27.2mm
Seat : Prologo Scratch M5
Specs are subject to availability from our suppliers and may change from time to time.