Perfectly secure the mounting of your cups (square seals) and rear brake caliper pistons with this holding clip specific. It's a part of the group's original builder for group karts OTK (Tony Kart, Kosmic, Exprit, Redspeed, etc..)
⚠️ IMPORTANT: THE QUALITY MAGICKART WARRANTY On our site, we want to make it clear that the clips sold are constructor origin clips (OTK Genuine Parts). These are not not "compatible" or "adaptable" pieces as can be found on some third party sites. To ensure the safety of your braking system and the correct positioning of the cups, choose the requirement of the original room OTK.
It was during a private test session, in full preparation for the Championship of France. Michel, kZ driver, returns to the booth, complaining of a spongy and irregular rear braking. After a few rides, he even feels that the right rear wheel tends to block.
His mechanic dismounts the rear caliper. At the opening, this is the surprise: the clip to maintain a piston cup jumped from his throat. Result, the cup was no longer perfectly in support, leaving the piston work through, causing hydraulic pressure loss and a startup of plug. The clip in question was a "compatible" model a little too flexible that had relaxed with heat and vibration.
Fortunately, the official dealer OTK present on the circuit had the piece in stock. They replaced the defective clip with a original clip OTK. After a complete purge, michel's braking was again incisive and securing.
The moral of this story: The function of this small clip is crucial. It keeps the cup and piston in place in the bore of the stirrup. A poor quality clip or worn that jumps, this is the assurance of a major malfunction of the braking. Only use original clips.
This holding clip is designed to secure the cups and pistons of the rear braking systems brake systems OTK following:
SA2
BS6
BSD
BWD
It equips the vast majority of the group's rear calipers OTK (Tony Kart, Kosmic, Exprit, Redspeed, Gillard, EOS) SA2, BS6, BSD and BWD.
Type: Maintenance clip / Circlip for bore / Stop assignment.
Function: Keeps the cup and piston in position in the body of the stirrup.
Origin: Original room OTK Kart Group (manufacturer's warranty.)
Sold by unit: Quantity required variable depending on the caliper model (usually 1 clip per piston.)
Material: High resistance treated spring steel.
Form: Open ring (circlip type without eyelets) Designed to fit into a machined groove inside the stirrup.
"Michel, our technical expert, recommends you: the replacement of this clip is done when the caliper is complete. When disassembly, use a circlip clamp for adapted bore to not distort the clip. Inspect the throat in the caliper: it must be clean and unmarked. When reassembling the new clip, make sure it is perfectly engaged in its throat all over. Take a test trying to run it slightly by hand to check his seat. If you are not equipped, do not force and confide the montage to a pro. "
⚠️ Security Council: The braking system is a vital security organ. If you notice a distorted clip, broken or absent, do not take the track. The assembly of this part must be done by a competent person. Check his correct positioning before each session.
Order your original maintenance clips OTK at Magickart for reliability and performance without compromise. Fast shipping.
| Feature | Detail |
| Part type | Stop holding clip |
| Function | Maintains the cup and piston in place |
| Utilization | Rear brake caliper |
| Compatible brands | OTK (Tony Kart, Kosmic, wished, Redspeed, Gillard, EOS) |
| Compatible systems | SA2 / BS6 / BSD / BWD |
| Origin | Original partner part (OTK Kart Group) |
| Conditioning | Sold individually |
| Material | Spring steel treated |
| State | Nine |
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.
Perfectly secure the mounting of your cups (square seals) and rear brake caliper pistons with this holding clip specific. It's a part of the group's original builder for group karts OTK (Tony Kart, Kosmic, Exprit, Redspeed, etc.).
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