Scarosso Ultegra Di2 with ZIPP 404 Firecrest carbon Wheels

  • Scarosso Ultegra Di2 with ZIPP 404 Firecrest carbon Wheels
  • Scarosso Ultegra Di2 with ZIPP 404 Firecrest carbon Wheels
  • Scarosso Ultegra Di2 with ZIPP 404 Firecrest carbon Wheels


Scarosso Ultegra Di2 with ZIPP 404 Firecrest carbon Wheels


Price incl. VAT excl. Local Import Taxes & Shipping Costs.

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Your Purchase does good, gives back and makes a lasting impact. 5% of profits of all products is donated to the Joyce Meyer Hands of Hope Initiative. No cost to you.

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With Your Purchase of any Helmet, you contribute to placing more Homes on Heads. Make a lasting impact to those who are homeless, or who may have lost their homes due to any national disaster. 5% of profits of helmets gets donated to the Joyce Meyer Ministries who will help us with this Initiative. No cost to you.

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SPEEDLAB ships from Monday to Friday with the exception of public holidays. We ship complete orders only, i.e. the dispatch usually takes place as soon as all ordered items are ready for dispatch. Please contact the SPEEDLAB service team if you wish a partial delivery.


Depending on destination country, package size, volume and weight, SPEEDLAB ships with the carriers German Post, DHL, German parcel service, DPD, USP. Deliveries of bulky goods, for example complete bicycles, will be handled by selected forwarding companies.

For return shipments SPEEDLAB cooperates with German Post, DHL and DPD. Large bulky goods like bicycles will be picked up by a forwarding company.

In Germany and most European countries the are shipped with DHL, Hermes, DPD, UPS, German Post.




  • Germany 5,99 Euro DHL / DPD / Hermes / German post
  • Rest of Europe: 13,99 Euro (DHL, DPD, Hermes)
  • Rest of world: 29,99 Euro DHL
  • Cash on Delivery + 4,9 €


For all items marked with this symbol, which are ordered on business days from Monday to Friday by 3 p.m. (CET), we offer the DHL Express shipping option or UPS for selected delivery countries. The DHL Express&UPS option is subject to an additional surcharge. It can be selected during the ordering process, provided that all items in the shopping cart offer the Express option. In addition the DHL Express option must be available for the selected delivery adress.

An order within the EU usually arrives the following business day. Depending on the postal code of the delivery address, longer parcel delivery times may occur.


  • Germany 15 Euro (DHL, UPS, TNT)
  • Rest of Europe – 49 EURO (DHL, UPS, TNT )
  • Rest of world – on request

In-stock items will be shipped within Germany in 1-2 working days, within Europe and worldwide in 1-3 working days. Unfortunately the delivery at a certain date given by you is not possible due to logistic reasons.

Should the ordered item not be in stock, the delivery time is extended analogue to the delivery in our warehouse. Information regarding the availability can be obtained at +49-7022-9-777-818 or

Please note: The ordered goods may be subject to a partial delivery.

Import Taxes, Customs Duties and Fees / National VAT

The indicated prices including VAT. In addition to the calculated SPEEDLAB shipping costs customers not living in the EU have to pay the national VAT and duty in their country for the imported goods.

Transport Damage

If you receive a damaged shipment please refuse the receipt if possible. Anyway, please get in touch with the Bike24 service team by e-mail or phone as soon as possible. We will be happy to solve the issue.


The SPEEDLAB team will do its best to fulfill your change requests.

The wish to cancel must be declared within 14 days after receipt of the goods. The return must take place within 14 days after the declaration of the cancellation.

Before the actual dispatch of your order, it can still be canceled. Please send us your request as soon as possible using the contact form or call us by phone. Should the payment have been charged already, it will be refunded in a timely manner.

Pack everything you want to return to SPEEDLAB carefully and include your order number. Remove the old shipping label and attach the return label to the package. You can return the package at DHL and Hermes stations. For all other countries: Please contact us with your return request and our customer service will arrange the process. Usually, SPEEDLAB covers the return costs.

A return will be processed at SPEEDLAB within a few working days. Once your request has been successfully processed it will be confirmed by e-mail. A possibly necessary refund will be processed directly afterwards.

Complete Streamline Weapon

The Scarosso questions aerodynamic conventions, and the demands of a modern racing bike. The frame and fork are design and engineered around the rider, with an emphasize on performance, aerodynamics, capability and comfort. These factors are holistically integrated to offer a complete streamline weapon. Scarosso is every bit capable, as it is fast. With tyre clearance up to 32C, it caters for a wide range of rider applications. Speed is only as good as it can be controlled, which is why disc-brakes are the obvious performance solution to enable the Scarosso with all-weather capability that is powerful yet consistent and predictable.

Superior Aerodynamic characteristics

The Scarosso is set apart from the competition by its leading-edge; attributed to the Scarosso AID (Aerodynamic-Identity) Fork. CFD Analysis indicate turbulence regions present at the chainwheel, caused by the cadence of the rider, resulting in parasitic drag.

Proprietary Frame Construction / Material

Scarosso is manufactured in a tailored process and layup schedule. Constructed through expanded polystyrene (EPS) moulding. Preform moulding allows precise, uniform (wrinkle-free) and repeatable execution of the lay-up schedule. Uniform fibers increase strength reducing irregularities.


Aero tubing profile

Power meter Crank Compatible

Internal routing

Integrated seatclamp

Carbon Frame

Carbon wheels

Rigid carbon fork

Streamline integrated components

Hydraulic Disc brakes

Bigger volume tyres

Di2 electronic drivetrain

Thru Axles


  1. ZIPP Firecrest Carbon wheels and a Di2 Electronic groupset - unbeatable combo.
  2. The Scarosso frame offers streamline integration - all components as well as rider considered in aerodynamic optimisation.
  3. Pedal efficient geometry means that you use less input for a similar output, or similar input for greater power delivery - going further per pedal stroke. This geometry is also ergonomically optimised.
  4. UCI accreditation means this is ready for any race you want to enter.
  5. Super stiff and rigid frame design - when putting the power down, you don't want any unnecessary flex, but you do want comfort - Scarosso offers both.
  6. Thru axles front and rear makes for quick wheel changes, and is more secure once in place.


 Silverback Bikes Stride Comp 29 mtb xc market

Proprietary Frame Construction / Material

Scarosso is manufactured in a tailored process and layup schedule.

Constructed through expanded polystyrene (EPS) moulding. Preform moulding allows precise, uniform (wrinkle-free) and repeatable execution of the lay-up schedule. Uniform fibers increase strength reducing irregularities.

 Silverback Bikes Stride Comp 29 mtb


Scarosso geometry places the rider in the optimal position for power transfer to the pedals while riding in the most aero efficient posture. This position is then ergonomically enhanced and fine tuned for a good balance of aerodynamic efficiency, comfort and performance.

Drivetrain compatibility: Wireless and wired compatible frame

Sram AXS, Shimano Di2 and Campagnolo EPS compatible

 Silverback Bikes Stride Comp 29 mtb mtb

Surface Aero Carbon handlebar

The Aero Drop Handlebar is designed complementary to aerodynamics of the Scarosso frameset.

Downforce inducing profile handlebar tops.

Compact bend for palm comfort in the drops.  Light UD carbon structure, with 3K Twill Weave surface finish.

Full- or Semi- Integrated brake, gear and electric cable routing.

The handlebar has a reach of 82mm and drop of 124mm

Drops are flared at 3.5° for improved wrist ergonomics promoting comfort over prolonged periods.

 Silverback Bikes Stride Comp mtb

Scarosso AID Fork

Scarosso AID Fork reduces parasitic drag by implementing the Tubercle Effect, a phenomenon where ‘bumps’ are placed on the leading edge of an aerofoil to improve the aerodynamic flow.

 Silverback Bikes Stride Comp 29 mtb

Streamline Integrated Components:

Scarosso design and engineering focused on reducing the interference drag, present between the frame and components. The cable routing is fully internal, only exposed at the exit of the respective component. The stem is recessed into the top tube, inducing the minimum air disturbance. Aerodynamic advances include the top tube and down tube aerocurves, that guide the airflow over the profiles. The front and rear wheel are tucked close to the frame, to induce smooth air transition between components.

 Silverback Bikes Stride Comp mountain bike

Wheels and brakes

This Scarosso is fitted with Zipp’s 404 Firecrest Tubeless Disc-brake wheelset. This is a go-to speed weapon for any situation. Its aero and crosswind-stable 58mm rim depth is ideal for road races, time trial and triathlon, gran fondos, and endless training over all types of terrain

Schwalbe Pro One tyres provides excellent grip and super low rolling resistance as well as doing a great job of stopping you when you pull the Shimano ST-R8070 Hydraulic disc brakes.

 Silverback Bikes Stride Comp mountain bike

Thru Axle dropouts

Front and rear thru axle dropouts makes wheel removal very quick and greatly stiffens up the frame and fork for both improved steering and power transfer to the rear wheel.

The thread on both front and rear dropouts are interchangeable.

 Silverback Bikes Stride Comp mountain bike

SBC carbon Seatpost and Integrated seatclamp

Scarosso's seatpost is a thing of beauty. This highly-aero mast is securely locked in place with an integrated seatclamp.

UCI accredited Frame and fork


Scarosso is UCI approved and accredited.

"all new models of frames and forks used by licence holders in road (RD), time trial (TT), track (TR) and cyclo-cross (CX) events must be approved on the basis of the Approval Protocol for Frames and Forks available from the UCI website. Approval by the UCI certifies that the new equipment meets the shape requirements set out in the UCI regulation. 

The use of approved models is permitted in competition from the date of approval. The use of approved frames and forks remains subject to Article 1.3.007"


CranksetShimano Ultegra FC-R8000, Double, 11spd, Hollowtech, 53/39t
CassetteShimano Ultegra CS-R8000, 11-32t
Front DerShimano Ultegra Di2 FD-R8050
Rear DerShimano Ultegra Di2 RD-R8050-GS Shadow, 11spd
Bottom BracketFSA PF30 w/24mm adaptor for Shimano
ChainShimano CN-HG701
ForkScarosso AID Passive Aerodynamic Control, Matte 3K Twill Finish, 100x12mm
HeadsetSURFACE Sealed Bearings, ZS56/40 Top and Bottom
HubsCognition™ DB hubset with Axial Clutch™ 
RimsZIPP 404 Firecrest Carbon rims, 58mm deep, Dimple pattern
TyresSchwalbe Pro One
SeatpostSURFACE 3K Twill Carbon, 360mm
SaddleSURFACE Ti-Alloy Rails
HandlebarSURFACE 3K Twill Carbon, 31.8mm Clamp, 124mm Drop, 82mm Reach, 4° Flare
StemSURFACE UD Carbon, Full Control System Integration, 75/90/105/120mm, 6.5° Rise
FrameScarosso Carbon road Frame, Passive Aerodynamic Control, Matte with 3K Twill finish, 100x12mm Front and 142x12mm Rear
Weight TBA
Brake setShimano ST-R8070, Hydraulic Disc Brake, Dual Control Lever, 11-spd

Disclaimer: Due to the nature of bike manufacturing, specification & finishes, component availability and price may be subject to change without prior written notification. Also images may not match final specifications due to component availability.

Due to Covid-related scheduling and component availability challenges, bike specifications are subject to change without notice. Specifications may not be exactly what is shown in the photo.


Proper bike fit is as important as getting the right bike for the job. Long term comfort and performance can be greatly improved with the right size bike. This acts as a guide only, so if you are unsure, please visit your Silverback reseller to be professionally measured and sized for the perfect fit.



  • Can I mount a pannier rack on my Scarosso?

    No, Scarosso is a thoroughbred, and not a hybrid commuter.

  • What size will fit my 1.8m tall build?

    See the 'Find your fit' tab for size guides. If unsure, contact us with your dimensions and we will suggest the right bike for you. Alternatively, make an appointment with SL and come see us for a proper fit.

  • I am a lady, will this be a good ladies bike?

    Yes, use our size guide to help you choose the best bike size for you.

  • Can I run this as a "moonlight" gravel grinder if I have a second wheelset with gravel tyres on it?

    Theorecically, if your tyre sizes fit - yes. Would we recommend it - nope. The frame is designed for road, and the clearances between front tyre and DT as well as rear tyre and ST are all meant to be tight - meaning if any stones or mud gets in there, it will damage your frame. And warranty would be void.


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