EXPLORE SÓNDERKLASSE
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Exceptional in tarmac but also cobbles and hard pack terrain. In this latest iteration, we improve important aspect in the right way from the details and design in artisanal quality
Classic silhouette road bikes with today performance that deserved by more cyclist
INTENDED USE
Performance
ROAD RACE
ALL ROAD PERFORMANCE
Metal bikes—
Revolutionize
Classic shape and craftsmanship with
flagship performance
SELECTED TUBING
MADE IN ITALY
Fusion of carbon and metal
We can't compromise the performance so we push further with carbon tubeing and most performance stainless steel alloys. USA based fabricator—KVA Stainless is absolute expert in this matter. Their seamless butted tubes are featherlight yet exceptional performance characteristic
Didn't stop there, we obtain bigger outer diameter of carbon tubing to max out the capabilities, and they're progressively follow the bike size. So, larger frame may get bigger tubing diameter
Polybox
TUBES JOINT
REINFORCEMENT
Stronger construction for more powers
You can observe this Polybox tubes joint implemented in the massively wide "pyramid-shaped" cluster between bottom bracket shell-down tube-seat tube to optimize power transfer with wider support to maintain lateral stiffness of your bike
Near instant to propel you forward. More stable when of saddle while "twisting" the bikes and hammering down the pedals in the drop
This specific feature are exclusive for Sonderklasse model that only possible with metal 3D design and printing
STAINLESS STEEL 3D PRINTED
SELECTIVE LASER MELTING
Rapid 3D modeling more precise frame cluster
We take serious effort to design your Sonderklasse before actual fabrication process, especially ensuring the lug and cluster in the right measurement. After we lock the 3D model from our tools, we printed them it allow us to build more accurate bike geometry. Printed lug then welded and glued to the carbon and metal tubing.
Explore Sonderklasse get your hand on lug model through the 3D model preview to see the details
(best view in desktop browser)
Fulesage
CARBON
COMPONENTS KIT
Complete package integration
Sonderklasse now comes with our carbon component as the fulesage kit suggest (means airplane main body). Integrated carbon bar and carbon seat post is now included with your frame and fork—bunch of size options to choose to fit your needs
Premium upgrade kit options from Deda EDG/Alanera RS kit, Columbus Trittico, and ENVE In-route also available upon request

ALLOY DCR FRAME KIT
FULESAGE
Complete package and integration
Fulesage means airplane main body, so do with Sonderklasse that now comes with selected Deda Elementi best value alloy component. Deda Superbox DCR stem, Zero 2 DCR handlebar, and Zero 100 seatpost included in your purchase—all with your selection of size for optimal fit
Upgrade to carbon kit options from Deda Alanera RS, Columbus Trittico, and ENVE In-route also available upon request
Specification
Tubing
Selected Columbus steel/stainless tubing with Hi modulus 3K twill carbon seat tubes
Cable routing
Internal hidden routing, Deda DCR system, electronic groupset only (Di2, AXS, EPS compatible)
Frame cluster
3D printed SLM, stainless steel 316-L
Fork
Full carbon T700, ISO 4210, tapered steer tube (28,6-39,8mm), 700x40 max, fender mount, flat mount disc brakes, stealth drive side dropout
Integrated dropbar
Full carbon T700/800, ISO 4210, 125mm drop/5° flare, 75mm reach, internal cable routing only
Brakes
Flat mount disc brakes, ⌀140mm rear/⌀160mm front
Seat post
Full carbon T700, ISO 4210, round ⌀27.2mm, 0mm setback, alloy 6061, round and oval saddle rail compatible
Front derailleur
Alumunium 3D printed, ⌀34.9mm, 5Nm max torque
Wheels OLD
Front 12x100mm, Rear 12x142mm, Thru axle
Rear dropout
SLM 3D printed SS-316L, UDH hanger, SRAM Transmission compatible
Bottom Bracket
T47 threaded inboard bearing, 86mm shell width
Headset bearing
IS52/IS52 (⌀51.8mm bearings)
Max tyres
up to 700x40 measured, slick/semi slick, without fenders
Chainring size
Up to 53-36T (2x crankset), 40T (1x crankset)
Build process
silver/brass fillet brazing, resin epoxy joint
Max weight system
±100kg total, includes the carrier and the rider
Estimated weight
±1590gr, size 510mm seat tube, frame only, unpainted
Custom geometry only
Sonderklasse is great to be ridden in the drop and relatively aggressive. As bespoke frame specific model we don't provide stock size, but if you need sizing references, you can refer size geometry from our other bikes model such as Eclair for road and Reiziger for more sportive endurance model
FREE CUSTOM GEOMETRY
SPECIAL OFFER FOR FULL BIKE BUILD
Just get ride, soon
We help to build your full bike too. From components, accessories and budget that fit your desired specs and riding needs from renowned brand.
Don't hesitate to contact us about your custom build details

Build Details
Standards in every frame without additional charge
Your size of Sonderklasse frame and fork (road 700x32 or all road 700x40 options)
1x ACE integrated drop bar
1x Carbon seatpost
Headset and bearing (FSA ACR system)
1x removable 3D printed alloy front derailleur hanger ⌀34.9mm
2x M12 thru axle (front and rear)
1x UDH™️ rear derailleur hanger
1 years fork warranty, Life time support, and 180 days Frame Crash Protection for 30% off frames repair and tubing replacement/rebuild (repaint excluded)
Minimal color paint included
+1000 RAL swatches option are ready to choose, gloss finish with black/white frame decals. Raw unpainted gloss finish exclusive for stainless build only
RAW gloss finish included

Go to RAL color library here ->

RAL gemeinnützige GmbH Germany
©All rights reserved
6 month lead time
Secure your build with 50% deposit for next batch schedule
OUR PRODUCTION CALENDAR ->
Steel tubing
SLM SS-316-L
3D PRINTED CLUSTER LUG
Columbus Life
REAR STAYS
3K HI-MOD CARBON TUBES
FRONT TRIANGLE
Stainless steel tubing
SLM Ti-6Al-4V (Gr.5)
3D PRINT CLUSTER LUG
・
Columbus XCr/KVA MS3
REAR STAYS
・
3K HI-MOD CARBON TUBES
FRONT TRIANGLE
Fulesage upgrade kit options
Deda EDG RS DCR road/all road
RS carbon seatpost 12/0 setback
Alanera RS/Superzero RS cockpit options
EDG Road/All road D-shape carbon fork
Deda DCR compatible headset
Columbus Trittico Road
Trittico carbon seatpost, 15-25 setback
Trittico 2 piece stem/dropbar carbon
Trefoil Trittico carbon fork 700x32
IS42/IS52 or ZS44/EC44 headset

ENVE Road/AR Aero In route
Twinbolt carbon seatpost, 15 setback
Aero in route stem/bar combo carbon
Road/AR In route fork, 700x32/40
In route compatible headset

EXCLUSIVE 10%OFF
Chris King compatible bottom bracket + headset bundle and parts with upgrade kit options above
Worldwide shipping charge included
Hassle free for International order, custom taxes is excluded
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