Fusion Frameset

The next generation of Olympic-level performance

Price Includes GST
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2 Year Warranty

12,000.00 NZD

Available

Size L shipping now.

All other sizes are available for pre-order and shipping in early 2026.

Altias Fusion

Features

Designed for a balance between modularisation and optimisation.

Dropouts

Replaceable dropouts, with full length built in chain tensioners.

Engineered for Speed

Altias Fusion is engineered for Olympic-level speed. Wind-tunnel validation shows up to 24W less power required* than comparable Olympic-tier framesets. An optimised stiffness-to-weight ratio layup delivers a responsive feel without the dead, over-built sensation.

▸ Up to 24 W saved (wind-tunnel validated)
In controlled wind-tunnel testing, the Altias Fusion frameset required up to 24W less power than comparable Olympic-tier sprint framesets for a 9.5s flying 200m time trial.

▸ Built for sprint power
The Altias Fusion is engineered around peak forces measured from Olympic-level sprint data. Bottom-bracket torsion, rear-triangle flex and head-tube stiffness is tuned to resist the exact load paths of gate starts, accelerations and high-speed efforts. The result is a front end that holds a line at 70+ km/h and a drive-side structure that directly turns power into forward drive.

▸ Optimised stiffness-to-weight
Stiffness alone isn’t the goal, stiffness per gram is. Through iterative layup development, non-working material was removed while key fibres were aligned to the load paths. The result is a responsive experience, without a dead, over-built feel. It’s the efficiency you notice every time you stand on the pedals.

Innovative Geometry

The Altias Fusion treats the rider as a part of the bike, not just sitting on top. The frame delivers a long, low sprint stance with 'railed' high-speed manners and precise control for line changes in traffic. The geometry is dialled for a position you can hold at speed, with handling that helps you stay there.

▸Maximising Reach
Sizes L and XL are extended out towards UCI reach limits to support elite, long-and-low positions. S and M keep the same handling DNA with proportionate stack and reach, so smaller riders get the same sprint posture without compromise.

▸ Low Bottom Bracket
Designed around modern, shorter cranks, the lower BB drops the centre of mass and trims system frontal area for reduced CdA, while retaining safe pedal clearance on the boards.

▸ High-Speed Handling
Steering geometry is tuned for stability above 60 km/h with easy micro-corrections in traffic. Smooth and settled at speed, yet responsive when you need to change line or launch.

Universal and Future-Proofed

The Altias Fusion is built to slot directly into your programme today and keep improving tomorrow. Standard interfaces make building and servicing straightforward, while deliberate design decisions and modular touch-points open the door to system upgrades. Backed by Velobike Innovation’s ongoing development, the platform stays current through the Olympic cycle and beyond.

▸ Standardised compatibility
A 1 ⅛″ steerer accepts any standard stem, the T47 bottom bracket fits widely available cranksets, and wheel and cockpit interfaces follow established track standards. You can bolt familiar components straight on, while the full Altias system (bars, forks, wheels) unlocks the greatest performance gains.

▸ Future-ready upgrades
A frame-fork interface with deliberate clearance creates room for next-generation fork options and event-specific set-ups (F200, match sprint, keirin, kilo). The frame remains constant, you tune the front end and cockpit to the rider and the race.

▸ Ongoing support
You’re investing an active development platform, with continued collaboration alongside national teams and Olympic-level athletes to optimise the system and interfacing parts and push performance forward.

Aero Performance

The Fusion Frameset shows a consistent advantage over comparable Olympic-tier sprint framesets from the previous Olympic cycle.

We ran a series of tests across a spectrium of race speeds. Swapping framesets while maintaining rider geometry and fit as closely as possible for consistency.

Altias Fusion

Specifications

Frame Specifications

Frame	Altias Fusion
Fork	Altias Fusion — Fork A
Seatpost	Altias Fusion — Seatpost
Saddle Clamp	Altias Systems — Saddle Clamp

Component Compatibility

Steerer Tube Diameter	1 - 1/8" (1.125")
Bottom Bracket	T47 x 68mm
Max Chainring	70t (42mm Chainline)
Saddle Rails	7x7mm / 7x9mm

Front Wheel Compatibility

Axle Spec	M9 x 100mm (Bolt On)
Max Tyre Size	700c x 25c
Wheel Style	Lenticular / Flat / Spoked

Rear Wheel Compatibility

Axle Spec	M10 x 120mm (Bolt On)
Max Tyre Size	700c x 25c
Wheel Style	Lenticular / Flat / Spoked

Altias Fusion

Geometry and Sizing

Dimension	S	M	L	XL
Top Tube	576	601	626	626
Seat tube	499	520	551	588
Stack	480	500	530	565
Reach	438	457	474	464
BB Drop	60	60	60	60
Front Center	600	625	650	650
Saddle (min)	580	610	652	660
Saddle (max)	765	800	840	850

Note:
Frameset size depends on your bike fit requirements, the events you participate in, and the components you wish to integrate with your frameset. We highly recommend to visit a track specific bike fitting studio to ensure the geometry is best suited for your requirements.

Altias Fusion

Tools and Calculators

An expanding dashboard of tools and resources to help you make the most of your Altias Fusion Frameset.

Altias Longboi Stem Calculator

Frame Size:

Handlebars:

Handlebar Reach:

Handlebar Drop:

Note: select a handlebar from our range, or input the reach and drop geometries yourself. Keep in mind that the handlebar’s reach is to the leading edge, not the centre of the drop.

Bike Fit:

Total Reach:

Note: Total Reach is the horizontal distance from the Bottom Bracket to the leading edge of the Handlebar.

Total Grip Height:

Note: Total Grip Height is the vertical distance from the Bottom Bracket to the centre of the handlebar’s grip.

Altias Fusion

Enhance the System

Altias is not just a frame. The whole system is optimised to work in harmony.

Altias Fusion

Features