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This Spherical rocket axis screw 10 mm diameter is a major technical change developed by the race service Birel Art For the chassis range 2026. It passes through the rocket and ensures the direct mechanical connection with the front gear adjustment system.
Legitimate 2026 EVOLUTION: This screw is longer than model 2025. This increased length is made necessary by the thickness of the new adjustment system.
Technical exclusivity: She only mounted with the new eccentric kit 2026 Birel Art (Caster-Camber Freeline adjustment system). Unable to associate with the old rings or kits from previous generations.
Original freeline quality: Designed by FREELINE (the brand of accessories of Birel Art), it is machined in a high-strength steel to support extreme side loads and repeated passages on the vibrators.
| Feature | Details |
| Mark | Birel Art / Freeline (origin) |
| Diameter | 10 mm |
| Vintage | 2026 (long model) |
| Kit compatibility | New Eccentric Kit Caster Camber Freeline 2026 |
| Incompatibility | Not suitable for the Eccentric Kit Model 2025 and previous |
| Application | Front train (left or right rocket axis) |
Checking the kit: Before mounting, be sure to have Freeline version 2026 eccentric. If you try to mount this screw on a 2025 kit, the thread will exceed too much and the tightening will not be compliant.
Tightening and safety: Always use a new brake nut (Nylstop type) at the base of the screw and observe the recommended tightening torques for the front train. Excessive clamping bride the spherical rod of the rocket.
Lubrication: Apply a thin layer of mechanical grease to the smooth body of the screw before inserting it to facilitate pivoting and prevent premature wear of the inner rocket ring.
"The factory Birel Art has worked well on the train before 2026, but beware of the mixtures of pieces! The trick: Never attempt to cut this screw to fit it on a 2025 frame, and vice versa, do not mount a 2025 screw on your 2026 kit (it would be too short and the nut would not take on the nylon brake). My Pro Council: Identify your rocket screws in your spare parts boxes at the circuit. Store the 2026 models separately to avoid confusion during an express change of rocket between two sleeves! "
Q: Why is the screw 2026 longer than that of 2025? A: The new Freeline 2026 Caster Camber Setting Kit includes reviewed components that modify the total thickness of the assembly at the level of the chassis. It is therefore necessary to a longer screw to cross all the rings safely.
Q: Is this screw sold with the eccentric kit? A: No, this screw is sold separately to the unit as a spare part. The complete eccentric kit 2026 is another reference.
Q: Is it compatible with Charles Leclerc or CL Kart chassis? R: Yes, since Charles Leclerc chassis are manufactured by Birel Art and use Freeline accessories, if your CL chassis is equipped with the 2026 front train, this screw is perfectly compatible.
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This Spherical rocket axis screw 10 mm diameter is a major technical change developed by the race service Birel Art For the chassis range 2026. It passes through the rocket and ensures the direct mechanical connection with the front gear adjustment system.