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Summary: the choice of the elite
The 95 mm in magnesium is an extreme room. This is not comfortable equipment, it is a precision tool for high-level drivers (KZ, OK, X30 senior categories).
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Why 95 mm ? It's a very long hub. It exerts an important lever arm on the axle, which significantly increases the rear rail. Ideal for "loading" the outer tire and obtain maximum traction at curve outlet, especially on tracks where kart lacks grip.
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Why magnesium (mg) ? Lighter than aluminum, it reduces the unspickded masses (better raises). Above all, its exceptional thermal conductivity helps to limit the overheating of tires at the end of the race, thus stabilizing your inflation pressure.
- Technical specifications
| Feature | Specification |
| Mark | CRG (Genuine Racing Parts) |
| Inner diameter | 50 mm (Standard Competition) |
| Total length | 95 mm |
| Material | High density magnesium |
| Finishing | Anodized thermal protection |
| Series | R2.0 (optimized design for rigidity) |
| Configuration | Complete (with 3 mounting studs) |
| Use | Competition (high adhesion setting) |
- Mounting tutorial: precautions with magnesium
Magnesium has different mechanical properties of aluminum. It is more rigid but also more "brittle" against direct shocks.
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Cleaning the axle: Clean your axle perfectly with an effective degreaser. Magnesium is very sensitive to galvanic corrosion: never climb a mg hub on a dirty axle.
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Tightening (crucial): * Imperatively use a torque. Magnesium does not support excessive tightening "by hand" that sometimes practiced with aluminum.
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Tighten gradually and alternately. Uniform clamping ensures that the ring does not crack.
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Safety check: Unlike aluminum that can deform, magnesium may have micro-cracks after a shock (tatthet with a vibrator or a competitor). Inspect your hubs after each race weekend.
💡 Michel's trick
"The 95 mm mg, it's a formidable weapon, but it's a 'heavy' adjustment. The trick: The length 95 mm makes the kart very responsive to load transfers. If you mount these hubs and that the kart becomes unpredictable or 'jump' in turn (rebound phenomenon) is that you have too much rear grip. My Pro Council: Before putting short hubs, first try to reduce your rear path by returning the hubs of a few millimeters. If that is not enough, iron 75 mm. Keep 95 mm only for tracks with very little adhesion or cold conditions where you need to heat up and solicit your rear tires to the maximum. "
❓ FAQ SEO (Frequently Asked Questions)
Q: Does magnesium oxidize faster than aluminum ?
A: Yes, magnesium is very sensitive to moisture and aggressive chemicals (powerful motor cleaners). After each wash, dry your hubs well with compressed air and, if possible, have a slight fabric shot to protect them.
Q: Can I use this hub on a 50 mm 'hard axle ?
A: Yes, it's a possible combination in competition to gain motor skills, but careful: it makes the rear train very rigid. Watch for the wear of your tires, because this setup will make them work much stronger.
Q: Why is the R2.0 version better ?
A: The R2.0 version at CRG enjoys more accurate machining in the housing of the key and a distribution of improved masses, which reduces parasitic vibrations at high speed.
✅ Ready for the track ?
You now have the most efficient equipment for your chassis CRG. To finalize your preparation:
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[Nettoyant frein] (Indispensable to degrease the axle before assembly).
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[Contrôle géométrie] (A 95 mm hub radically changes the behavior, check your parallelism right after).
AFS.05689
Specific References
The 95 mm in magnesium is an extreme room. This is not comfortable equipment, it is a precision tool for high-level drivers (KZ, OK, X30 senior categories).