Cylinder Kits For Motorcycles

Motorcycle cylinders and cylinder kits

Welcome to the motorcycle cylinder kit page at athena.eu!

For over two decades, Athena has been acknowledged as a reliable partner by the top motorcycle companies and selected as an original equipment supplier, due to an ability to internally design and manufacture complete cylinder kits with high-quality standards and remarkable efficiency. Join the motorcycling enthusiasts who choose Athena for unmatched value for quality.

 

Why choose Athena motorcycle cylinder kits?

When you opt for an Athena cylinder kit, you receive the following distinctive benefits:

  • Easy installation
  • Smooth, prolonged durability
  • Meticulous quality control system ensuring each piece meets our customers' expectations and Athena's stringent standards

 

Athena Cylinder kits: What's included

All our motorcycle cylinder kits, consisting of cylinders, pistons, and gaskets, undergo rigorous quality tests on the bench and on the road by our expert technicians and racing teams. This validation phase allows us to offer only superior quality products to our customers.

  • Cylinders: To ensure increased surface hardness and even greater wear resistance, our thermal engine cylinders are made of aluminum coated with a nickel-silicon layer, known as "motor-nicksil." This treatment, developed by Athena, is the result of years of research and development, enabling us to provide a superior product in the market. Our cylinders are designed to last and to provide optimal performance in every condition.
  • Gaskets: With the use of selected raw materials, innovative production technologies, comprehensive testing in the design phase, and strict quality control, Athena has been a world leader in the production and design of engine gaskets and motorcycle gasket kits for over 40 years.
  • Pistons: Made with high-performance materials, transformed by reverse extrusion forging and equipped with a screen-printed surface coating of sintered molybdenum disulfide; Athena racing pistons ensure performance and reliability equivalent to original spare parts at a highly competitive price.

 

Athena Cylinder Kits: The perfect choice for every requirement

Our cylinder kits are designed to suit a variety of needs and performance levels:

  • Easy Cylinder Kits: Ideal for those looking for a simple and reliable solution, composed of standard bore cylinders and gasket series.
  • Standard Bore Cylinder Kits: An excellent choice for those requiring a replacement equal to the original, complete with standard bore cylinders, pistons, and necessary gaskets for assembly.
  • Big Bore Cylinder Kits: Designed for enthusiasts aiming to improve performance, with an enlarged bore cylinder, corresponding piston, and necessary gaskets for assembly.

 

Motorcycle and Scooter Cylinder kits

Click here to learn more about thermal units and discover how they are installed.

Our twenty years of experience in the field, attention to quality, and technological innovation allow us to offer products of absolute excellence. Find the thermal unit suitable for your vehicle and get ready to experience improved performance and increased power.

 

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Big Bore Cylinder Kit Ø 45 mm, 70 cc
Big Bore Cylinder Kit Ø 45 mm, 70 cc
ATHENA 002100 Big Bore Cylinder Kit Ø 45 mm, 70 cc
20+ pieces
Technical features
  • Bore Diameter (mm): 45.00
  • Displacement (cc): 70.00
  • Net Weight (Kg): 1.20
$ 182.95
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
ATHENA P400485100017 Standard Bore Cylinder Kit Ø 54 mm, 125 cc
20+ pieces
Technical features
  • Bore Diameter (mm): 54.00
  • Displacement (cc): 125.00
  • Compression Ratio: 14.8:1
  • Net Weight (Kg): 2.40
$ 1027.95
Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 12 mm
Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 12 mm
ATHENA 074500 Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 12 mm
Only 1 piece
Technical features
  • Bore Diameter (mm): 38.40
  • Displacement (cc): 50.00
  • Net Weight (Kg): 0.92
$ 170.95
Big Bore Cylinder Kit Ø 58 mm, 144 cc
Big Bore Cylinder Kit Ø 58 mm, 144 cc
ATHENA P400485100030 Big Bore Cylinder Kit Ø 58 mm, 144 cc
Only 3 pieces
Technical features
  • Bore Diameter (mm): 58.00
  • Displacement (cc): 144.00
  • Bore Gain (mm): + 4
  • Compression Ratio: 14.0:1
$ 1131.95
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
ATHENA P400485100008 Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Not available
Technical features
  • Bore Diameter (mm): 54.00
  • Displacement (cc): 125.00
  • Compression Ratio: 14.3:1
  • Net Weight (Kg): 2.05
$ 898.95
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc
ATHENA 070400 Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc
17 pieces
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 70.00
  • Net Weight (Kg): 1.55
$ 247.95
Big Bore Cylinder Kit With Head Long Stroke Ø 47,6 mm, 80 cc, Pin Ø 12 mm
Big Bore Cylinder Kit With Head Long Stroke Ø 47,6 mm, 80 cc, Pin Ø 12 mm
ATHENA 074700/1 Big Bore Cylinder Kit With Head Long Stroke Ø 47,6 mm, 80 cc, Pin Ø 12 mm
20+ pieces
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 80.00
  • Net Weight (Kg): 1.29
$ 240.95
Big Bore Cylinder Kit Ø 48 mm, 80 cc
Big Bore Cylinder Kit Ø 48 mm, 80 cc
ATHENA 020000/1 Big Bore Cylinder Kit Ø 48 mm, 80 cc
Only 7 pieces
Technical features
  • Bore Diameter (mm): 48.00
  • Displacement (cc): 80.00
  • Net Weight (Kg): 3.91
$ 352.95
Big Bore Cylinder Kit with Head Ø 47,6 mm, Pin 12 mm, Flat Head Piston
Big Bore Cylinder Kit with Head Ø 47,6 mm, Pin 12 mm, Flat Head Piston
ATHENA P400485100090 Big Bore Cylinder Kit with Head Ø 47,6 mm, Pin 12 mm, Flat Head Piston
Not available
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 70.00
  • Compression Ratio: 13.8:1
$ 392.95
Big Bore Cylinder Kit Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
Big Bore Cylinder Kit Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
ATHENA P400485100099 Big Bore Cylinder Kit Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
Only 7 pieces
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 70.00
  • Compression Ratio: 13.8:1
  • Net Weight (Kg): 1.22
$ 389.95
Big Bore Cylinder Kit Ø 45 mm, 70 cc
Big Bore Cylinder Kit Ø 45 mm, 70 cc
ATHENA 003100 Big Bore Cylinder Kit Ø 45 mm, 70 cc
20+ pieces
Technical features
  • Bore Diameter (mm): 45.00
  • Displacement (cc): 70.00
  • Net Weight (Kg): 2.63
$ 264.95
Big Bore Cylinder Kit Ø 50 mm, 80 cc
Big Bore Cylinder Kit Ø 50 mm, 80 cc
ATHENA P400105100007 Big Bore Cylinder Kit Ø 50 mm, 80 cc
Only 6 pieces
Technical features
  • Bore Diameter (mm): 50.00
  • Displacement (cc): 80.00
  • Compression Ratio: 15.3:1
  • Net Weight (Kg): 1.42
$ 475.95
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
ATHENA P400485100003 Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Not available
Technical features
  • Bore Diameter (mm): 54.00
  • Displacement (cc): 125.00
  • Compression Ratio: 14.8:1
  • Net Weight (Kg): 2.69
$ 1027.95
Big Bore Cylinder Kit Ø 85 mm, 290 cc to increase performance
Big Bore Cylinder Kit Ø 85 mm, 290 cc to increase performance
New
ATHENA P400210100073 Big Bore Cylinder Kit Ø 85 mm, 290 cc to increase performance
Only 1 piece
Technical features
  • Bore Diameter (mm): 85.00
  • Displacement (cc): 288.00
  • Bore Gain (mm): + 6
  • Compression Ratio: 13.7:1
$ 1078.99
Standard Bore Cylinder Kit Ø 77 mm, 250 cc
ATHENA P400250100017 Standard Bore Cylinder Kit Ø 77 mm, 250 cc
18 pieces
Technical features
  • Bore Diameter (mm): 77.00
  • Displacement (cc): 250.00
  • Compression Ratio: 13.8:1
  • Net Weight (Kg): 1.53
$ 714.95
Big Bore Cylinder Kit Ø 57 mm, 129 cc
Big Bore Cylinder Kit Ø 57 mm, 129 cc
ATHENA 009500 Big Bore Cylinder Kit Ø 57 mm, 129 cc
20+ pieces
Technical features
  • Bore Diameter (mm): 57.00
  • Displacement (cc): 129.00
  • Net Weight (Kg): 4.82
$ 309.95
Big Bore Cylinder Kit With Head Ø 47,6 mm, 73 cc
Big Bore Cylinder Kit With Head Ø 47,6 mm, 73 cc
ATHENA 072100 Big Bore Cylinder Kit With Head Ø 47,6 mm, 73 cc
Only 6 pieces
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 73.00
  • Net Weight (Kg): 1.54
$ 237.99
Standard Bore Cylinder Kit Ø 78 mm, 250 cc
Standard Bore Cylinder Kit Ø 78 mm, 250 cc
ATHENA P400270100014 Standard Bore Cylinder Kit Ø 78 mm, 250 cc
12 pieces
Technical features
  • Bore Diameter (mm): 78.00
  • Displacement (cc): 250.00
  • Compression Ratio: 13.6:1
  • Net Weight (Kg): 2.00
$ 714.95
Cylinder Head for OEM Cylinder
Cylinder Head for OEM Cylinder
ATHENA P400485200001 Cylinder Head for OEM Cylinder
13 pieces
Technical features
  • Net Weight (Kg): 0.47
$ 261.95
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
ATHENA 082000 Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
20+ pieces
Technical features
  • Bore Diameter (mm): 47.60
  • Displacement (cc): 70.00
  • Net Weight (Kg): 1.40
$ 277.99
Big Bore Cylinder Kit Ø 58 mm, 144 cc
Big Bore Cylinder Kit Ø 58 mm, 144 cc
ATHENA P400485100029 Big Bore Cylinder Kit Ø 58 mm, 144 cc
Not available
Technical features
  • Bore Diameter (mm): 58.00
  • Displacement (cc): 144.00
  • Compression Ratio: 14.0:1
  • Net Weight (Kg): 2.49
$ 1131.95
Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 10 mm
Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 10 mm
ATHENA 074400 Standard Bore Cylinder Kit Without Head Ø 38,4 mm, 50 cc, Pin Ø 10 mm
18 pieces
Technical features
  • Bore Diameter (mm): 38.40
  • Displacement (cc): 50.00
  • Net Weight (Kg): 0.92
$ 162.95
Standard Bore Cylinder Kit Ø 77 mm, 250 cc
ATHENA P400485100066 Standard Bore Cylinder Kit Ø 77 mm, 250 cc
Only 10 pieces
Technical features
  • Bore Diameter (mm): 77.00
  • Displacement (cc): 250.00
$ 714.95
Big Bore Cylinder Kit Ø 69 mm, 163,5 cc
Big Bore Cylinder Kit Ø 69 mm, 163,5 cc
ATHENA P400210100023 Big Bore Cylinder Kit Ø 69 mm, 163,5 cc
Not available
Technical features
  • Bore Diameter (mm): 69.00
  • Displacement (cc): 163.00
  • Compression Ratio: 12.1:1
  • Net Weight (Kg): 1.31
$ 646.95
Standard Bore Cylinder Kit Ø 40 mm, 50 cc
Standard Bore Cylinder Kit Ø 40 mm, 50 cc
ATHENA 073700 Standard Bore Cylinder Kit Ø 40 mm, 50 cc
13 pieces
Technical features
  • Bore Diameter (mm): 40.00
  • Displacement (cc): 50.00
  • Net Weight (Kg): 1.43
$ 292.95
Standard Bore Cylinder Kit Ø 38 mm, 47 cc, Mainfolds
Standard Bore Cylinder Kit Ø 38 mm, 47 cc, Mainfolds
ATHENA 073900 Standard Bore Cylinder Kit Ø 38 mm, 47 cc, Mainfolds
20+ pieces
Technical features
  • Bore Diameter (mm): 38.00
  • Displacement (cc): 47.00
  • Net Weight (Kg): 1.93
$ 320.95
Spare Bolts Kit for Athena Cylinder Kit
Spare Bolts Kit for Athena Cylinder Kit
ATHENA P400485150002 Spare Bolts Kit for Athena Cylinder Kit
15 pieces
$ 21.99
Big Bore Cylinder Kit Ø 85 mm, 300 cc to increase performance
Big Bore Cylinder Kit Ø 85 mm, 300 cc to increase performance
New
ATHENA P400250100032 Big Bore Cylinder Kit Ø 85 mm, 300 cc to increase performance
Only 2 pieces
Technical features
  • Bore Diameter (mm): 85.00
  • Displacement (cc): 296.00
  • Bore Gain (mm): + 7
  • Compression Ratio: 13.5:1
$ 1078.99
Standard Bore Cylinder Kit Ø 77 mm, 250 cc
ATHENA P400510100003 Standard Bore Cylinder Kit Ø 77 mm, 250 cc
Only 7 pieces
Technical features
  • Bore Diameter (mm): 77.00
  • Displacement (cc): 250.00
  • Compression Ratio: 12.6:1
  • Net Weight (Kg): 1.58
$ 714.95
Standard Bore Cylinder Kit Ø 97 mm, 450 cc
Standard Bore Cylinder Kit Ø 97 mm, 450 cc
ATHENA P400485100053 Standard Bore Cylinder Kit Ø 97 mm, 450 cc
Only 8 pieces
Technical features
  • Bore Diameter (mm): 97.00
  • Displacement (cc): 450.00
  • Net Weight (Kg): 2.04
$ 714.95