IDEA / RACING SCOOTER / FRAMESET
Carbon that sets the pace
SPORT or CHAMPION
IDEA / CUSTOM BUILD
IDEA S1 AERO was developed with world champion Roman Matyáš. The redesigned carbon frame for disc brakes weighs 1,450 g and combines low weight with strength and considered ergonomics.
Choose the comfort of SPORT flat handlebars or the CHAMPION racing aero cockpit. Each build is finished in visible DARK carbon or your own TEAM colour scheme.
CARBON MONOCOQUE / KEPR
The frame is manufactured as a single piece using Carbon Monocoque technology. The KEPR carbon-fibre layup optimises the balance of strength and weight, while allowing the carbon weave to remain visible.
The same manufacturing technology is used for integrated SPORT handlebars weighing 205 g and CHAMPION handlebars weighing 220 g. Integrated components complete the overall aerodynamics.
INTEGRATION / AERODYNAMICS
The 1-1/2 headset is optimised for internal cable routing. Both front and rear thru-axles are fully recessed into the construction, keeping them clear of the kicking area.
The carbon lower cover protects the frame from damage and forms part of its shape. Its smooth surface supports airflow beneath the frame.
01 / FRAME GEOMETRY
Considered space for every push
Dimensions with a purpose
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| Stack | Reach | A | B | C | C+ |
|---|---|---|---|---|---|
| 735 mm | 325 mm | 115 mm | 1235 mm | 30 mm | 60 mm |
Ground clearance is measured with 28 mm tyres. All dimensions are in millimetres; A, B, C and C+ correspond to the frame diagram.
02 / INTEGRATED COCKPIT
SPORT / 205 g · CHAMPION / 220 g
Internal cable routing
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| Handlebar width | Stem length | Stem angle | Type |
|---|---|---|---|
| 740 mm | 110 mm | 9° | flat |
The integrated flat handlebars are available in one version. Their 740 mm width can be shortened to 660 mm.
On smaller screens, scroll the table horizontally
| Handlebar width | Stem length | Stem angle | Type |
|---|---|---|---|
| 400 mm | 110 mm | 9° | aero |
The original CHAMPION aero handlebars were developed with Roman Matyáš.
03 / DESIGN & HAND FINISHING
Finished in the Czech Republic
With room for your ideas
The frame is handmade and hand-painted in the Czech Republic. Custom finishing allows the result to be tailored to individual requirements.
The entire frameset retains visible KEPR carbon weave for the lowest possible weight. The twill weave gives the surface a distinctive texture.
The same carbon construction is complemented by handlebars and a fork painted in your chosen colour.
04 / TECHNOLOGY IN DETAIL
Carbon Monocoque and visible KEPR carbon weave
Every element has a role
Seamless connections
Fully integrated axles contribute to overall strength. Recessed fittings keep them clear of the rider’s foot when kicking.
220 g
Aero handlebars developed with world champion Roman Matyáš form the foundation of the racing specification.
One piece
The S1 AERO frame is made as a single piece using Carbon Monocoque technology and an optimised carbon-fibre layup.
Racing specification
For a racing setup with a front brake only, the frame includes an integrated cover for the rear brake mount.
205 g
Integrated SPORT flat handlebars focus on comfort and control. Width can be adjusted from 740 to 660 mm.
Twill weave
Twill-weave carbon fabric combines a distinctive appearance with formability, strength and durability.
IDEA / FILM
05 / BUILDS & PRICES
Custom build / 6–8 weeks
All prices include VAT
Comfort and sporting performance
Racing aerodynamics and low weight
01 / Comfort and sporting performance
FULL SPECIFICATION
TEAM or DARK design · Choice of wheelsets
Custom build / 6–8 weeks
02 / Racing aerodynamics and low weight
FULL SPECIFICATION
TEAM or DARK design · Choice of wheelsets
Custom build / 6–8 weeks
SPORT and CHAMPION have different cockpits and brake setups. SPORT uses front and rear brakes; the racing CHAMPION has a front brake only. Both specifications are available in TEAM or DARK design, with a choice of CALOBRA ULTRA wheels.
Prices apply to the listed specifications and include VAT. We’ll confirm the final specification, price and current delivery time during a personal consultation.
INDIVIDUAL FRAMESET
Individual SPORT and CHAMPION framesets include the frame, fork, corresponding handlebars and accessories. Prices are listed with each specification.
RAFKARNA JOURNAL / RIDING EXPERIENCE
Ondřej Rybín shares his experience with visible carbon weave, individual paintwork and component integration. The archived test covers an older frame specification weighing 1,690 g; the current catalogue version weighs 1,450 g.
Read the test impressionsTHE TEAM BEHIND IDEA
Rafkarna and its IDEA brand are the main partners of Rafkarna IDEA Cycling Team. Discover its history, sporting results and shared foundations.
IDEA team & developmentYOUR NEXT IDEA
We’ll discuss the frame, cockpit, components and design with you. Together, we’ll create a build that suits your riding style.
Arrange a personal consultationExplore CALOBRA wheelsets