The complete master cylinder of origin OTK is the central organic hydraulic control member (Original OTK Kart Parts) for high competition braking systems. This high performance brake pump is the exact replacement part for the famous brake circuits BSS (manual front brake for KZ / DD2 box karts), Sa2 and Sa3 (Rear brakes or combined) Developed by the Italian factory for all the chassis of the group OTK.
Machined with surgical precision in an ultra-light and ultra-rigid aluminum aluminum alloy, this master cylinder guarantees instantaneous and loss of the force exerted by the driver. Its factory internal architecture incorporates a treated piston, a high-lip high-lip resisting extreme temperature set and high reactivity reminder. Delivered ready to be installed, this complete pump offers an irreproachable hydraulic pressure consistency, providing you with precise feeling at the pedal or control lever, handle after handle.
Technical characteristics:
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Compatibility Systems: OTK BSS (Front Brake), SA2 and SA3
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Material: High quality aluminum forged and machined CNC
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Elements included: Complete pump body, internal piston, seals, return spring, thrust axis, dust and tank bellows / built-in plug (depending on factory configuration).
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Chassis compatibility: Tony Kart, Kosmic Racing Kart, Kart, Redspeed, LN Kart, Gillard
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Origin: Original certified OTK (Italy)
👨🔧 - The trick in Michel (the corner of the expert)
* "Hi late braking artists! The brake pump OTK complete for BSS / SA2 / SA3 systems, this is best in terms of hydraulic feeling. When your old pump begins to flee or the pedal becomes soft despite three purges in a row, do not lose your time: change the set to leave a 100% healthy and secure basis.
My old mechanic trick to install this new pump: be careful at the connection and quality of the brake fluid !
When reconnecting your aviation hoses on the brand new aluminum, always replace small copper washers (sealing seals) on each side of the Banjo fitting. If you reuse the old washers already crushed, you will have an invisible micro-leak that will bring air into the circuit.
For filling, use only from brake fluid dot 4 or dot 5.1 high competition performance. Absolute prohibition to use silicone oil (dot 5) Other penalty to fling plant seals in a race weekend.
During the first purge, open the stirrup screw, let the liquid go down, then pump calmly. Do not slam the pedal like a deaf dry, it could return the new cups of the piston. A good slow purge is the assurance of reinforced concrete braking at the end of the straight line! "*
📐 - The Installation & Purge Guide: Step by Step
1.Deposit of the old master cylinder:10 min.Put the kart on his carriage. Clearly drain the old brake fluid of the circuit. Disconnect the brake hose connected to the pump, unplug the control linkage (connected to the lever or pedal) and unscrew the mounting screws to remove the old pump.
2.Montage of the new pump OTK:5 min.Position the new BSS / SA2 / SA3 complete master cylinder on your chassis platinum OTK. Tighten the fixing screws firmly using the medium net brake to counter the vibrations.
3.Raccordement tringlerie and hose:10 min.Connect the thrust rod to your order by adjusting the guard (leave a light functional game at the pedal so that the piston returns well to bottom). Reconnect the hydraulic hose with new copper joints, as recommended in the trick in Michel.
4.Remplissage and purge of the circuit:15 min.Fill the pump tank with clean brake fluid (dot 4 or 5.1). Make a careful purge at the brake caliper to hunt all air bubbles. Once the pedal / lever perfectly firm, close the circuit, check the tightness of all connections and clean the potential brake cleaner.
❓ - FAQ SEO (Frequently Asked Questions)
Q: Is this pump delivered complete and ready for use or need to buy the seals except ?
A: She is delivered complete and factory assembly. All internal components (piston, seals, return spring) as well as the protective bellows are already installed inside the aluminum body. Simply fix it on the chassis, connect your hoses and fill up with liquid.
Q: What is the difference between BSS, SA2 and SA3 versions for this master cylinder ?
A: Factory OTK use a similar and highly standardized pump body architecture for these three generations and types of systems to ensure maximum reliability. Whether you use it to control your manual front brakes (BSS) on a KZ or for your back circuit (SA2 / SA3), this master cylinder offers the fluid displacement volume and the calibrated pressure for the original stirrups OTK.
Q: Can we mount this pump on a chassis of another brand (CRG, Sodikart, Birelart) ?
A: Technically, as long as the fixing center is fixed on the platinum corresponds and that the linkage aligns, a master cylinder can send pressure to any stirrup. However, this pump is calibrated specifically for the volume ratio of the pistons of the stirrups OTK. Install it on a braking system of another brand can change the race or firmness of your pedal unpredictably.