| Specification | Technical details |
| Product type | High performance clutch fixing central nut |
| Mark | Tm kart (Original TM Racing Genuine Parts) |
| Manufacturer reference | 18tm49057.2 (49057.2) |
| Material & Finishing | Ergal (Aluminum 7075 T6) / Anodizing Black (Total Black) |
| Exploded view | View 3/26 (TAVOLA 6 - FRIZIONE / CLUTCH KZ-R3) |
| Motor compatibility | Tm kart : All gear motors (KZ10, KZ10B, KZ10C, KZ-R1, KZ-R2, Kz-r3) |
| Compatibility | Mandatory: To use imperatively with the clutch nut / tambourine "new type" |
Secure the lock of your transmission with a valuable weight gain on the rotating masses thanks to theClutch nut in an official black black tm kart (ref 18tm49057.2). Cut in the mass in a high strength aluminum alloy (Ergal 7075 T6), this central nut guarantees a perfect maintenance of your clutch nut on the primary box of box.
On the official technique pattern of the clutch assembly, this original nut enjoys a reworked geometry to adapt to the latest evolution of TM Kart transmissions. Treated with a superb black Anodizing (Total Black), It offers increased thermal and mechanical resistance to clamping stresses and temperature variations. Its lightweight design reduces inertia on the primary tree, promoting even more frank climbing.
⚠️ Important - Compatibility Mounting:
This Nut in Ergal Black Reference 18tm49057.2 is designed exclusively to work in combination with the walnut / Clutch Tambourine "New Type" (also available for sale in this section of the site). It does not adapt to the old models of tambourines.
* "Hi mechanical enthusiasts! The clutch nut in Ergal, it's super nice room, but beware: Ergal is noble and ultra-light aluminum! We do not treat it as an old solid steel nut.
My stand trick for mounting this nut 18TM49057.2: the clean sleeve, the average brake and the Dyna key !
Before placing this black nut on your tambourine 'new type', drop a drop of blue fillet brake (average force) on the thread of the primary shaft. Do not use a shock wrench (pneumatic firecracker) that would destroy black anodizing and might be misgiving the nutty nut !
Tighten it by hand, then use a suitable clutch-clutch lock and a 6-piece socket perfectly clean mounted on torque wrench. Apply the tightening torque recommended by TM Kart without exceeding the prescribed values. A mounting on the brake and the right couple is the assurance of a locked transmission that will never loosen in the race! "*
After installing the tambourine / clutch walnut "new type" and its wedge washer, perfectly clean the thread of the shaft with brake cleaner.
Follow the Tip in Michel: Remove a medium (blue) brake tip on the shaft thread to secure the lock.
Engage the black Ergal nut (ref 18tm49057.2) by hand. Block the tambourine with the dedicated hold tool and tighten to the torque wrench (6-pin sleeve) with the factory recommended torque.
Check that the tambourine has no axial game and rotates freely with the shaft. You can now install the pressure tray and the disks !
Q: Why use an Ergal nut rather than a steel nut ?
A: Ergal (Aluminum 7075 T6) offers a mechanical strength very close to steel while being about three times lighter. On a component attached directly to the rotating transmission shaft, this weight reduction decreases the inertia and improves the reactivity of the engine to the delivery of the gases.
Q: What is the reference TM KART 18TM49057.2 ?
A: This is the official reference TM Kart for the black Ergal clutch nut specific to the tambourine subset / clutch walnut "new type".
Q: Can I reuse this nut in Ergal during several demonstrations ?
A: Yes, as long as you use a suitable tool (fitting 6-pin) to not mark its footprint and carefully clean the brake residues on its thread for each reassembly.
Protect and finalize the assembly of your transmission with the Cover plastic black clutch TM R3. Specific original room (Caution: Not compatible with TM KZ R2 and previous models).
The SPI seal 26x37x7 mm is a critical component for the proper operation of the 2-time cycle of TMKART engines. Generally placed at the crankshaft, its role is to ensure a perfect seal between the interior of the housing (under pressure / depression) and the outside.
Prevention of air intakes: Prevents outside air from entering the bottom-motor, which would distort the carburation and might cause tightening.
Confinement of lubrication: Retains the air / oil mixture inside the engine to ensure the lubrication of crankshaft bearings.
Fluoré Material (Viton / FKM): Designed to withstand high temperatures generated by the crankshaft rotation and chemical aggressions of competition fuels.
Securely attach your housing with the screw tbce 5 x 15 tm kart (Link view 37). Specifically designed for maintaining the plastic clutch cover on TM KZ R3 engines.
Make a perfect guidance and without playing to your clutch sandy thanks to the NEIGHT NEIGHT NEIGHBORHONE NEIGHT TM KART. This stamped sleeve bearing (type HK 20/12) is an essential high-precision guidance element of the primary transmission on the Italian brand 125cc gear motors.
Manufactured according to very strict tolerances to support high rotational speeds and heavy radial loads, this HK 2012 roller cage allows the pinion or clutch bell to rotate freely on the transmission shaft with a coefficient of Minimal friction. Its processed steel structure guarantees excellent heating of the box oil, preventing premature wear of the shaft reach on all blocks TM KZ10, KZ-R1, KZ-R2 and KZ-R3.
Guarantee a perfect lock and surgical disengagement on your high-engine thanks to the Official TM Kart Clutch Press Tray Designed for KZ-R3 Engine. Mistress transmission part, this pressure plate applies the radial strength of the springs on the stack of the stacked discs and smooth to transmit the entire power of the block R3 to the gearbox.
Machined in a high rigidity aluminum alloy, this presser tray benefits from a geometry reworked by the TM KART race service exclusively dedicated to the KZ-R3 generation. It avoids any deflection under stolen departures or on the fly passages, ensuring instant biting without residual skating. Its perfectly flat friction surface and anti-friction treatment extend the lifetime of your clutch discs and ensure absolute constancy, handle after handle.
Optimize the transmission of your engine with the Clutch wreath 70 teeth TM R3. Specific original room (Caution: Not compatible with TM KZ R2 and previous models).
Guarantee the perfect sealing of your housing with the Seal 40 x 52 x 5 TM Kart (Original piece, reference light 35). Designed to withstand thermal and mechanical stresses of Karting Kz engines.
Restore the accuracy and guidance of your transmission thanks to the Naked Naked TM Kart Clutch Bell Specially designed for KZ-R3 Engine. Mistress external part of the clutch assembly, this aluminum bell cut into the mass receives the lugs of the discs stocked to transmit the force of the primary crown to the gearbox.
Machined according to the very strict tolerances of the TM Kart race service, this naked bell has a reworked geometry exclusively dedicated to the KZ-R3 block. Its reinforced structure is the inquiry and mattage resistant caused by record lugs during stolen departures and free accelerations. It guarantees a perfect sliding of the friction package, avoiding any untimely or residual skating.
Make the reliability and accuracy of your transmission with the SKF 6202 C4 TM Kart Bearing (View 28). Ideal as a counter-landing or for the TM K9, K9B, K9C, KZ10, KZ10B, KZ10C and R (R2, R3).
Secure the tightness and cleanliness of your engine housing with the TM KART magnetic oil cap (Camera view 24 of the clutch burst). Equipped with a retention magnet to capture metal residues.
Ensure the perfect timing and alignment of your transmission with the Blue 30 x 18 x 3 for TM Kart KZ-R3 clutch (Sploter mark # 25). Original part constructor.
Secure the command of your clutch thanks to the Outdoor shutdown circlips A10x1 mm original TM KART. Small but indispensable mechanical retainer, this elastic ring ensures the axial setting of the thrust system (stopping and disengagement) on the pressure tray of your 125cc gearbox engine.
Coming directly from the TM Kart workshops, this circlips responds to the A10X1 mechanical standard (designed to stay in the groove of a 10 mm diameter axis with a thickness of 1 mm). It guarantees perfect resistance to repeated axial thrust stresses during rapid disengaging and passages at high speed. Its high quality spring steel retains all its elasticity over time, avoiding any risk of escaking in the race in your block TM KZ-R1, KZ-R2 or KZ-R3.
Guarantee optimal power transfer and preserve the biting of your transmission through Smooth steel clutch disc 1.5 mm original TM KART. Fundamental element of the clutch stack of your 125cc gearbox engine TM KZ-R3This smooth disc is exactly interposed between each disc gnaw to constitute the friction package.
Cut with micrometric precision in a high quality steel, this disc strictly responds to the original dimensions factory: a External diameter of 122.8 mma Inner diameter at 92.9 mm notches and a calibrated teeth to 3.5 mm wide by 4.0 mm deep. Its dimensional precision guarantees a perfect sliding along the clutch nut / tambourine without creating friction or resistance. It offers a perfectly flat friction surface that prevents untimely skating and guarantees high-speed frank reports.
Discover the Piston IAME KA100, designed to deliver outstanding performance and unrivalled durability to your engine. Made with high quality materials, this piston is especially suitable for IAME KA100 engines, ensuring optimum efficiency and longer life.
Set of 4 Lecont LOH slick KZ2 kart tyres, CIK-FIA approved 2024-2026. Made in Italy by Lecont.
BirelART 40x38 black brake pads are the perfect choice for drivers looking for optimal braking power , controlled wear and increased longevity . Give your kart high-performance, precise braking, ideal for competitions and intensive training.
⚠️ Pad sold individually – Be sure to order the quantity needed to equip your braking system.
Discover Würth Brake Cleaner 12x500 ml at Magickart. Made by Würth, this acetone-free cleaner is ideal for brake systems and guarantees safe, effective use.
Iame piston for X30, Sudam, Leopard and Easykart 125 cc engines. Supplied with ring and 2 clips.
Discover the set of 4 tires Komet K3W rain at MagicKart. Designed for optimal performance and exceptional wet grip, ideal for the X30 Senior, S125 Junior and S125 Senior categories.0
The Set of 4 Komet K3H tires is the official choice of competitions Iame Series France Since 2024 for categories X30 Junior and KA100. Direct evolution of the famous K2H, the K3H repels the limits of the performance by offering a wider range of use and constant thermal stability even in the longest finals. This complete train (2 front tires + 2 rear tires) is designed for demanding drivers who do not want any compromises between Grip and durability.
Secure the lock of your transmission with a valuable weight gain on the rotating masses thanks to theClutch nut in an official black black tm kart (ref 18tm49057.2). Cut in the mass in a high strength aluminum alloy (Ergal 7075 T6), this central nut guarantees a perfect maintenance of your clutch nut on the primary box of box.
On the official technique pattern of the clutch assembly, this original nut enjoys a reworked geometry to adapt to the latest evolution of TM Kart transmissions. Treated with a superb Black Anodizing (Total Black)It offers increased thermal and mechanical resistance to clamping stresses and temperature variations. Its lightweight design reduces inertia on the primary tree, promoting even more frank climbing.
⚠️ Important - Compatibility Mounting:
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