Special class

machine

Special class

machine

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

FRAME SET START FROM
Rp 32.000.000
US$1,989

Hand build in Indonesia

50% deposit required

Custom geometry available

Custom paint available

Full bike build available

Made by order (±3 month)

MODEL AS-03

FRAME SET START FROM $1,989
Rp 32.000.000

FRAME SET START FROM $1,989
Rp 32.000.000

BUILD OPTIONS

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Metal bikes—
Revolutionize

One size, one human

Fully bespoke geometry

One size, one human

Fully bespoke geometry

Fulesage frame kit

Full carbon component

Fulesage frame kit

Full carbon component

Performance balanced ride feel

Carbon/metal tube construction

Performance balanced ride feel

Carbon/metal tube construction

3D printed cluster

Stainless steel 316L

3D printed cluster

Stainless steel 316L

Ample tyre clearance

Up to 700x40

Ample tyre clearance

700x30/45 max tire cleranance

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

Bike fitting in advance for more optimal custom geometry is recommended, some data measurement may required

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

Our curated brands ->

Our curated brands ->

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

Choose your kit

Choose your kit

ORDER FORM

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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

Rp 32.000.000
US$ 1,989
Custom tax and shipping excluded

Rp 32.000.000
US$ 1,989
Custom tax and shipping excluded

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

Rp 32.000.000
US$ 1,989
Custom tax and shipping excluded

Rp 32.000.000
US$ 1,989
Custom tax and shipping excluded

Fulesage upgrade kit options

Contact us for inquiry
Custom tax and shipping excluded

Contact us for inquiry
Custom tax and shipping excluded

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

Read more →

Shop from Anywhere

Fulfill your cycling needs in your fingertips, free shipping available
(Only available for Indonesia markets and delivery)

5/5 Customer rating and product review

Shop from Anywhere

Fulfill your cycling needs in your fingertips, free shipping available
(Only available for Indonesia markets and delivery)

5/5 Customer rating and product review

HAND MADE ENGINEERED BIKES FOR EVERYONE. PERFORMANCE TIRE AND WHEELS

RIDE. REPEAT. NO LIMITS

All rights reserved ©2025

HAND MADE ENGINEERED BIKES FOR EVERYONE. PERFORMANCE TIRE AND WHEELS

RIDE. REPEAT. NO LIMITS

All rights reserved ©2025

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