Cup / Square seal brake brake OTK Origin

Ensure the sealing and the perfect operation of your rear braking system with this cup (square seal) original builder for group karts OTK (Tony Kart, Kosmic, Exprit, Redspeed, etc..)

This cup is a vital piece of safety. It fulfills two essential functions: maintain the tightness of the brake fluid under pressure and ensure the return of the piston in the stirrup when you release the brake pedal.

⚠️ IMPORTANT: THE QUALITY MAGICKART WARRANTY On our site, we want to clarify that the cups sold are cups of origin manufacturer (OTK Genuine Parts). These are not not "compatible" or "adaptable" elements of uncertain quality, as can be found on some third party sites. For your safety, that of other drivers and the performance of your equipment, choose the requirement of the original room OTK.

📖 The little story: the soft pedal of Ludo

It was during the qualifying round of the league championship. Ludo, pilot in category X30, was struggling for 3rd place. At two rounds of the end, at the end of the straight line, he tap the brakes to enter the pin. To his surprise, the pedal sinks a little more than usual. The next turn, rebelote. It must pump on the pedal to get a semblance of braking. He ends up the race 8th, furious and worried.

Back to the stand, his mechanic dismounts the rear caliper. The finding is without appeal: a slight leakage of liquid at a piston contaminated the wafer. In issue ? An old brake cup, who had dried and lost his elasticity. She no longer fulfilled her piston recall role, creating a vacuum and letting the air pass.

Fortunately, they had planned the shot. They come out of their parts box a siglé bag OTK containing the famous original cups. In 30 minutes, the stirrup is cleaned, new cups are mounted (with new brake fluid,) and the circuit is purged.

The next day, for the final, Ludo found a frank braking, direct and reassuring. He was able to go back to 4th place.

The moral of this story: With the brakes, we do not play. Original cups, changed regularly, are the only guarantee of constant braking, race after race.

Compatibility

This square seal is designed to equip the rear braking systems from braking systems OTK following:

• SA2

• BS6

• BSD

• BWD

It rises on the vast majority of group chassis OTK (Tony Kart, Kosmic, Exprit, Redspeed, Gillard, EOS) For many years (please check the exact model of your pre-command bracket.)

Technical characteristics

• Type: Cup / Square seal (caliper trim.)

• Origin: Original room OTK Kart Group (manufacturer's warranty.)

• Sold by unit: Variable amount required depending on the caliper model (usually 2 or 3 cups per back caliper.)

• Material: High resistance specific to brake fluid 4/5 elastomer.1 and at high temperatures.

🔧 Michel's trick

"Michel, our technical expert, advises you: the replacement of the cups is a delicate operation that must be done when completely rehabilitating the stirrup. When disassembly, inspect the body of the stirrup and the surface of the piston. The slightest stripe or Oxidation trace can cause a leak, even with a new cup. For reassembly, use imperatively and exclusively brake fluid OTK official to lubricate the cup and the piston. Do not use grease or mineral oil, which would swell and destroy the rubber of the cup instantly. Also remember to change the scraper seals if necessary. "

⚠️ Security Council: The braking system is a vital security organ. If you are not experienced or equipped for the repair of karting brakes, have a professional call for a professional. Check the absence of leakage, the pedal race and its proper functioning before taking the track.

Order your original cups OTK at Magickart for reliability and performance without compromise. Fast shipping.

❓ FAQ: your frequent questions

Q: Why is it so important to use original cups OTK and not "compatible?" ?A: Karting brakes are subjected to extreme temperatures and very high hydraulic pressures. The specifications ofOTK for his joints (material, hardness, dimensional tolerances) is extremely strict to guarantee constant security and feeling. "Compatible" cups can be made in a less resistant elastomer that can be deformed, harden to heat or swell in contact with the liquid, resulting in a braking loss or wheel block.

Q: How many cups do I need to redo my rear caliper ?A: It depends on the model of your stirrup. The rear calipers OTK (SA2, BS6, BSD, BWD) are usually equipped with 2 or 3 pistons. You need a cup by piston. Please check the number of pistons on your stirrup before ordering the required amount.

Q: How often should I change the brake cups ?A: It is recommended to check the condition of your brakes (no leakage, good return of the pistons) before each meeting. In competition, full repair with cup replacement and brake fluid is recommended at least once a season, or more frequently if you feel a loss of feeling at the pedal. If you notice a leak, change is immediate.

Q: Are the cups delivered with grease for mounting ?A: Not. As shown in Michel's trick, do not use fat (except special piston grease supplied in some very specific renovation kits, but never on the cups themselves.) Cups and pistons must be lubricated only with clean brake fluid, preferably liquid OTK.

📋 Technical summary