• -27%
ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 2
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 3
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 4
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 5
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 6
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 7
  • ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125 view 8

ITALKIT 140 CC ROTAX 123 BIGBORE CYLINDER 57mm APRILIA RS125

€518.49 -27% Discount
€378.49
Tax included

By buying this product you can collect up to 31 Racing Coin Racing Coins!

Italkit Cylinder for Aprilia RS125 Rotax 123.

Increase power and torque with its 140cc displacement thanks to its 57mm diameter.

Includes a complete cylinder gasket set (cylinder base, intake, head, and exhaust).

The achieved power exceeds 38 HP.

thumb_up In Stock local_shippingDelivery 24 / 48hs
Quantity
  ACTUAL STOCK!

if you can add it to the cart, we have it

  +70.000

Satisfied customers

  ACCUMULATE €!

With MMG Racing Coins

  DEFER YOUR PAYMENTS

up to 18 months

  EXPRESS DELIVERY

24/48 working hours

Italkit Nickel-Silicon cylinder with redesigned ports, retouched exhaust venturi to increase revolutions and power

This Kit mounts a forged piston with molybdenum disulfide coating, heat-screened Ø 57 mm. with 1 segment of heat-treated steel with chrome nitrided rubbing surface, 1 mm. thick, with a reduced total weight (156 grams), 18 grams less than the original Ø 54 mm.

Includes a latest generation biconical bolt.

· Total displacement with Ø 57 mm. and stroke 54.5: 139 cc.
· Recommended cylinder head volume: 12 cc.
· Recommended compression ratio: 12.58:1.
· Cylinder head squish: 1.10 mm.

*ITACI.01.141.G
New

You might also like

Aprilia RS125 Italkit Pneumatic Power Valve

Aprilia RS125 Italkit Pneumatic Power Valve

ITAVE.01.125
<p>Pneumatic exhaust valve for <strong>Aprilia RS 125 Rotax 122 or 123</strong></p> <p>Progressively opens between <strong>7800-8000 revolutions</strong> in <strong>automatic mode</strong> <span style="text-decoration:underline;">without the need for adjustment</span>, providing <strong>greater smoothness</strong> and avoiding the typical lag of the electronic valve.</p> <p><strong>Better performance and reliability</strong>, preventing the dreaded breakages of the original valve<strong>.<br /></strong></p> <p>Instructions in <strong>Spanish</strong> for easy assembly.</p> <p><a href="https://mmgracingstore.com/en/blog/post/-comparison-of-pneumatic-valves-italkit-v1-v2">More info?</a></p>
ITALKIT
Regular price €161.54 Price €121.15
  • -25%
APRILIA RS125 ITALKIT RACING CARBON REED VALVE

APRILIA RS125 ITALKIT RACING CARBON REED VALVE

ITALC.01.125.1
<p>Intake kit for <strong>Aprilia RS 125 Rotax 122 and 123</strong></p><p>Composed of a reed valve box <strong>DOUBLE PRISM</strong> with 8 petals and an <strong>intake manifold int. D-40</strong> suitable for <strong>Dellorto 34-39</strong> carburetors</p><p>Product developed and tested to significantly enhance your engine's performance</p><p>More torque at low and mid RPMs without losing high end thanks to the perfect seal of its carbon reeds that prevent bounce at <strong>maximum RPMs</strong></p>
ITALKIT
Regular price €177.10 Price €129.28
  • -27%
PISTON RINGS TOOL

PISTON RINGS TOOL

*BIK19418
<p>Installation and removal pliers for piston rings.</p>
BUZZETTI
Regular price €9.99 Price €8.00
  • -20%
Cylinder Head Aprilia RS125 D-57 140cc Rotax 122 /123 ITALKIT

Cylinder Head Aprilia RS125 D-57 140cc Rotax...

ITACU.01.140.1
<p><strong>For 140-144cc Cylinders</strong></p><p><strong>Optimized Head</strong> that enhances combustion <strong>by increasing performance</strong> thanks to the special design of its chamber, squish, and increased compression.</p><p><strong>Specifically designed</strong> for cylinder diameters of <strong>57/58 mm</strong> with <strong>140-144 cc</strong>, preventing hot spots and improving combustion.</p><p>Suitable for the <strong>Italkit / Aoki / Mitaka 140 cc or Barikit 144 cc cylinder.<br /></strong></p><ul><li>Diameter 57 mm for Rotax 122 or 123</li><li>Chamber volume:<strong> 11.2 cc</strong></li><li>Compression ratio:<strong> 13.41:1</strong></li><li>Squish:<strong> 1.6</strong></li></ul>
ITALKIT
Regular price €103.44 Price €79.65
  • -23%
Needle bearing 15x19x20 Silver Plated With Race Type Cage

Needle bearing 15x19x20 Silver Plated With Race...

ITARST.256
<p><strong>Silver cage</strong> of <strong>high performance 15x19x20</strong> for Aprilia RS125, Rotax Max kart, and more models.</p><p>Its design ensures <strong>maximum reliability and strength</strong> at high revolutions and stress.</p><p><strong>Essential</strong> to install when <strong>replacing the piston</strong> or performing an engine rebuild.</p><p>Since it is one of the rotating parts that <strong>endure the most stress</strong>, it should be <strong>regularly replaced</strong> to ensure greater reliability.</p><p></p><p></p>
ITALKIT
Regular price €15.45 Price €13.13
  • -15%
CILINDER GASKET SET FOR 140CC ITALKIT CILINDER APRILIA RS125

CILINDER GASKET SET FOR 140CC ITALKIT CILINDER...

ITAVJ.01.140.1
<p>Gasket set for <strong>140 cc cylinder D.57 mm Italkit / Mitaka / Aoki</strong> for Aprilia RS125.</p><p>Valid for <strong>Rotax 122, 123 and Rotax Max karting</strong> engines</p><p><strong>3 base cylinder gaskets</strong> with different thicknesses for squish adjustment or cylinder distribution.</p><p>Includes cylinder head O-rings.</p><p>Essential to change them when replacing the piston or the needle cage (needle bearing).</p>
ITALKIT
Regular price €28.44 Price €21.33
  • -25%

10 other products in the same category:

VOCA BigBore 100cc Cylinder Yamaha DT Ø54mm stroke 43mm without head

VOCA BigBore 100cc Cylinder Yamaha DT Ø54mm...

TOPVCR-RD1130.CYL
<p><strong>Cilindro VOCA BigBore 100cc</strong> para <strong>Yamaha DT</strong> Ø54mm y carrera de 43mm, <strong>sin culata incluida</strong>.</p> <p>Después de un largo periodo de pruebas en pista y en banco de potencia, <strong>VOCA</strong> ha desarrollado su potente <strong>cilindro BigBore 100cc</strong> para los motores <strong>Yamaha DT</strong>, ya disponible en Motoscoot.</p> <p>Fabricado en <strong>aluminio</strong> de alta calidad con tratamiento de <strong>Cromo/Níquel</strong>, este cilindro está diseñado para obtener el máximo rendimiento del motor. Cuenta con <strong>cinco transfers de carga</strong> y una <strong>salida de escape tabicada</strong> que optimiza el flujo de gases.</p> <p>Se entrega con un pistón <strong>Vertex de un solo segmento</strong> con medida de 53,95 mm.</p> <p>El conjunto BigBore de VOCA requiere el uso de un cigüeñal con <strong>carrera de 43 mm y biela de 85 mm</strong>. Gracias a esta combinación de diámetro y carrera, el motor alcanza una cilindrada total de <strong>100cc</strong>.</p> <p>La culata se vende por separado; debe montarse la referencia <strong>VCR-RD11DT.54</strong>. Se recomienda combinarlo con el cigüeñal <strong>VOCA HQ RACING 43MM/85MM</strong> para un ajuste perfecto.</p> <p><strong>Atención:</strong> Es necesario utilizar la <strong>caja de láminas VForce 4 V4R82A-i</strong> correspondiente al modelo <strong>Yamaha YZ 85cc</strong>.</p> <p><strong>Squish recomendado por VOCA al usar su culata: 0,8 mm.</strong></p> <p><strong>Compatible con:</strong></p> <ul> <li>Yamaha DT 50 Portugal (con modificaciones)</li> <li>Yamaha DT 80 LC</li> <li>Yamaha RD 80 LC</li> <li>Yamaha TZR 80 LC</li> </ul>
VOCA RACING
Regular price €332.75 Price €292.82
  • -12%
  • New
  • Out of stock
Cylinder KTM 125 SX 16-22 Flat-Top Piston Italkit

Cylinder KTM 125 SX 16-22 Flat-Top Piston Italkit

*ITACI.34.125.G2
<p>ITALKIT cylinder for KTM 125 SX 16-22 with flat-top piston and 2 rings, diameter 54mm.</p> <p>Reference CI.34.125.G2</p>
ITALKIT
Regular price €642.51 Price €469.03
  • -27%
  • New
Cylinder Metrakit 74cc Derbi Variant with head

Cylinder Metrakit 74cc Derbi Variant with head

MTK800D1140
<p><span>Cylinder with head </span><span>Metrakit</span> SP <span>74 cc</span> for <span>Derbi</span> Variant models Start (pedals) or Start 5.</p> <p>If you're looking for outstanding performance, there's nothing better than installing a <span>74 cc cylinder</span>. You'll improve maximum power, increase torque, and be able to use longer gear ratios for higher top speed.</p> <p>Take your engine to the next level with this upgrade — you’ll notice <span>faster and more aggressive acceleration</span> and better throttle response.</p> <p>Metrakit manufactures this cylinder in <span>aluminium with internal nicasil coating</span>. The 74 cc cylinder dissipates heat better, is lighter, and offers superior wear resistance — ideal for sport tuning and heavy use.</p> <p><span>Its optimized intake and exhaust transfer design ensures more efficient filling.</span></p>
METRAKIT
Regular price €254.10 Price €203.28
  • -20%
  • Out of stock
Milling cutter+guide machining crankcase for Ø52 cylinders Derbi Euro 3 - Minarelli AM6

Milling cutter+guide machining crankcase for...

*ITAFRC.001
<p>Tool kit for machining the crankcase of Minarelli AM6, Derbi Euro 2 and Euro 3 engines for fitting cylinders with an external neck of Ø58.50 mm.</p> <p>With this milling cutter and crankcase guide and a drill (no milling machine required), you can modify the crankcase diameter to fit the cylinder neck.</p> <p>This tool has been designed to facilitate precise machining of the crankcases, allowing the installation of cylinders with pistons of Ø48, Ø50, Ø52 and Ø54 mm.</p> <p><span style="text-decoration:underline;"><strong>Advantages of the new FRC.001 tool:</strong></span></p> <ul style="list-style-type:disc;"> <li>Ensures exact and symmetrical machining on crankcases.</li> <li>Includes guide ring with two faces (AM6 and Derbi Euro 2/3).</li> <li>Compatible with hand drill (1,000 – 1,200 rpm).</li> <li>Full technical manual available in Spanish and English.</li> <li>Step-by-step video with QR code included.</li> </ul> <p><a href="https://www.youtube.com/watch?v=O5G45y7fc28" target="_blank" rel="noreferrer noopener">Instructional video</a></p>
ITALKIT
Regular price €239.58 Price €215.62
  • -10%
Cylinder chainsaw 064 D. 52 mm.

Cylinder chainsaw 064 D. 52 mm.

*ITACI.1832
<p>Stihl 064 chainsaw cylinder D. 52 mm.</p>
METEOR PISTON
Regular price €168.37 Price €134.70
  • -20%
  • Out of stock
email Comments (0)
No customer reviews for the moment.
We use cookies to improve your shopping experience. You will be able to select our and third-party cookies that you wish to use at any time. See cookie policy
Accept all Reject all Configure cookies