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Presentation: the strength of the rear train Birel Art
This M10 Nut with Embase (molded with the distinctive control letter "S") is a part of the manufacturer distributed by FREELINE for the group Birel Art (Also compatible with Charles Leclerc chassis, RicCiardo or Kubica).
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Integrated base: The wide collar at the base of the nut acts as an integrated washer. It makes it possible to evenly distribute the clamping force on a larger surface, thus avoiding crushing the support tubes or the body plastics.
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Vibration resistance: Thanks to its optimized support face, this nut offers an excellent mechanical resistance to loosening, a crucial point on the rear bumper that undergoes full vibrations of the engine and the jerks of the track.
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High resistance steel: Treaty against corrosion by brilliant zinc, it supports repeated disasters and reversals during your stands at the stands.
- Technical specifications
| Feature | Details |
| Mark | Birel Art / Freeline (origin) |
| Threading type | M10 (Metric 10 mm) |
| No screws | Standard of karting hardware |
| Profile | Hex nut with large base (collar) |
| Main application | Rear bumper attachment, heavy chassis fasteners |
| Conditioning | Sold individually |
- Installation and safety tips
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Checking the thread: Always associate this nut with an appropriate resistance class M10 screw. If the screw is twisted after a shock at the back, replace the set (screw + nut).
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Balanced clamping: The rear bumper (including fixing the mandatory CIK-FIA retention tubes) must be tight firmly for not floating on the track, while allowing quick disassembly if you need to intervene on the rear shaft.
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Visual control: Before each handle, take a look at the hardware of your bumper. A lost nut on the track is synonymous with black flag with orange disc (dangerous material).
💡 Michel's trick
"In karting, the rear bumper takes all the vibrators and sometimes the friends who stop a little late! The trick: The advantage of this original base nut Birel Art is that it does not need to add a washer that always ends up slipping or falling into dismantling grass. My Pro Council: For safety fasteners such as bumper, if you do not use a Nylstop nut, apply a small medium (blue) net brake drop on the net of your M10 screw. It avoids that the vibrations of the engine do not transform your bumper into a projectile for those who follow you! "
❓ FAQ SEO (Frequently Asked Questions)
Q: Does this nut require a key to how much for clamping? A: For a standard Nut M10, you will need a flat key or a pipe key of 15 mm or 17 mm (depending on the machining standards of the FREELINE hex head).
Q: Is it compatible with the rear bumpers of other brands (OTK, Sodi, CRG)? A: Yes, quite. Even if it is a piece of origin Birel Art, the M10 thread is universal in karting. You can use it on any chassis to replace a lost bumper nut.
40.0637.00
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This M10 Nut with Embase (molded with the distinctive control letter "S") is a part of the manufacturer distributed by FREELINE for the group Birel Art (Also compatible with Charles Leclerc chassis, RicCiardo or Kubica).
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