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The round front bar 30 x 1 mm is a room of origin OTK Kart Parts. It attaches between the two longitudinal tubes at the front of the chassis. This is one of the most effective tools for changing the torsion of the frame and adapt the grip according to the track conditions.
Intermediate rigidity: With a thickness of 1 mm, This bar offers an ideal compromise. It brings more precision than a bar without a bar, while remaining more flexible than versions of 1.5 mm or 2 mm.
Total compatibility: Designed to fit perfectly with the fasteners of all chassis of the group OTK (Tony Kart, Kosmic, wished, Redspeed, LN, EOS).
Chrome finish: Manufacturing quality OTK with a high resistance chrome finish to prevent corrosion and facilitate assembly / disassembly.
| Feature | Details |
| Mark | OTK Kart Parts (Origin) |
| Diameter | 30 mm |
| Thickness | 1 mm |
| Form | Round |
| Material | Chrome-molybdenum special steel |
| Compatibility | Chassis OTK (Tony Kart, Kosmic, etc.) |
| Required accessories | 2 fixing and hardware collars (often already present on the chassis) |
Mounting: Slide the bar in the collars provided for this purpose on the front of the chassis. Make sure the bar is not "stress" during tightening to not distort the frame.
Effect on the GRIP:
Mounted bar: Increases the rigidity of the front train. The chassis becomes more "incisive" curve input and offers more front grip.
Remote bar: Releases the chassis, makes it more flexible and more tolerant, ideal if the front train is too "biting" or if the track is very slippery.
Interview: Apply a light layer of WD-40 to the bar to prevent rust from blocking the bar in the necklaces.
"The front bar of 1 mm is often the miracle solution when we look for a little precision without making the kart too physically piloting. The trick: Do not tighten your bar collars like a brute. My Pro Council: If you have too much GRIP and the Kart 'jumps' bend, try to remove the bar before touching your trackwidth. It's a simple, fast setting, and which radically changes the feeling at the wheel! "
Q: When to use the round bar rather than the flat bar ?
A: The 30 mm round bar is generally more rigid than a flat steel bar. It is used when you need more direction and stability in fast curves.
Q: Will this bar go on other chassis brands ?
A: It is designed for chassis OTK. If your chassis has 30 mm bar fasteners with identical distance, it could adapt, but we recommend the original parts for each brand.
Q: Is the thickness of 1 mm sufficient ?
A: For the majority of pilots and track conditions (average gum), the 1 mm is the reference. The upper thicknesses (1.5 or 2 mm) are reserved for the very screened tracks or drivers preferring an extremely rigid front train.
The CRG Kt2 is the versatile chassis par excellence of the Italian manufacturer. Unlike the Rébec Road (more rigid), the KT2 uses a frame compound full of tubes of 30 mm in diameter. This architecture offers controlled flexibility, ideal for freeing the engine in categories without gearbox like the OK, Iame X30 or the Rotax Max.
Its geometry allows fast adaptation to all track conditions (high grip or green track "). Featuring the last components of the range CRG RacingHe combines exceptional motor skills at a surgical front train accuracy.
The CRG KT2 2026 Version Kz redefines the standards of the Queen category. While the Road Rebel (32mm) remains the choice for the tracks with very high grip, the KT2 in 30mm Has become the favorite weapon of Kz pilots looking for more agility and ease in the support changes.
For 2026, CRG Reworked the composition of chrome-molybdenum steel to provide a better response from the front train during degressive braking. This KZ version stands out for its localized structural reinforcements and its integral front / rear braking system, essential to stop the power of 50 horsepower engines
The hub of 35 mm long is considered a "short hub". In karting, The choice of hub length is a fundamental adjustment tool:
Short hub (35 mm): It offers less contact surface with the axle than models of 75 or 90 mm. This usually allows to have a "freer" behavior of the rear train, Helping the chassis to be free from curve, Ideal on tracks with a lot of grip (adhesion).
The hub of 40 mm long is often considered the "standard" or "versatile" value on adult karts equipped with a 30 mm (x30, axle, Rotax, Kz, ok). Unlike very long (75-90mm) hubs that considerably rigidify the rear, or the very short (35mm) that fully freed the chassis, the 40 mm Offers neutral and healthy behavior, ideal for starting a setting session before refining.
The hub of 85 mm is a "long" adjustment room. In karting, the choice of the hub length is directly related to the leverage exercised on the axle:
Stability and Grip: With 85 mm, you increase the rigidity of the rear train and removing the load outward. This is the ideal tool for more moving output output or to expand your back path without stacking spacers (which weakens the assembly).
R2.0 version: This name indicates an evolution of design at CRG (best machining, optimized weight and anodized finish "Gold" for higher resistance to corrosion).
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).
The hub of 95 mm is one of the longest models available in the range CRG. In karting, the length of the hub is directly correlated to the "lever arm" applied to the axle:
Deported support: With 95 mm, you drop the load of the wheel outwardly. This helps to charge the rear train in support more, ideal for tracks where you miss moving out of turn.
Aluminum rigidity: Unlike magnesium, this aluminum version offers high structural stiffness and excellent durability, while being easier to maintain and less sensitive to oxidation. Finishing Gold (anodized) effectively protects the part against premature wear.
The 105 mm in magnesium is a high competition room. This is not a basic setting, it is a specific solution for specific needs:
Maximum lever arm: With 105 mm, you drop the load outward to load the outer rear tire. It is the absolute weapon when the kart is sorely lacking on the turn out of turn.
System "2 screws": In a length of 105 mm, a one-screw tightening would be insufficient and would create an imbalance. The system to 2 screws Allows you to distribute the tightening force over the entire length of the ring, ensuring a perfect maintenance on the axle without creating a single voltage point.
Magnesium (mg): It offers valuable weight gain on non-suspended masses and thermal dissipation that stabilizes the pressure of your tires during long finals.
The Round front bar 30 x 1 mm is a room of origin OTK Kart Parts. It attaches between the two longitudinal tubes at the front of the chassis. This is one of the most effective tools for changing the torsion of the frame and adapt the grip according to the track conditions.
Intermediate rigidity: With a thickness of 1 mmThis bar offers an ideal compromise. It brings more precision than a bar without a bar, while remaining more flexible than versions of 1.5 mm or 2 mm.
Total compatibility: Designed to fit perfectly with the fasteners of all chassis of the group OTK (Tony Kart, Kosmic, wished, Redspeed, LN, EOS).
Chrome finish: Manufacturing quality OTK With a high resistance chrome finish to prevent corrosion and facilitate assembly / disassembly.
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