Motorcycle Cylinders And Thermal Units
The cylinder is the motorcycle and quad spare part in which Athena has been constantly investing for more than ten years to improve its manufacturing and performance. Now, Athena has available a very flexible aluminum cylinder manufacturing department that can manufacture this part for manufacturers as well as small series designed for fast prototyping to develop new engines for racing teams worldwide.
Athena's engine cylinder and thermal units (the latter consisting of cylinder, piston and gaskets) are known worldwide for their performance, durability and reliability. Rigorous design and control treatments are combined with precision finishing: the thermal engine cylinders are coated with a nickel-silicon coating, or "motor-nicksil", developed by Athena to achieve even greater surface hardness and wear resistance. Quality tests are also of primary importance: all the thermal unit components are verified by Athena's technicians through strict bench and road tests with racing teams.
Athena offers a wide range of thermal units to meet the needs of those who need a simple spare part for motorcycles and quads or for riders who wish to increase the power of their vehicle: the standard bore kits guarantee the same performance of the original components, while the big bore kit is ideal to improve the performance of off-road motorcycles and ATVs.
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ATHENA
072400
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 10 mm, Domed Head Piston
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.39
$ 279.95


ATHENA
P400485100019
Standard Bore Cylinder Kit Ø 56 mm, 125 cc with Modular Head
Only 2 pieces
Technical features
- Bore Diameter (mm): 56.00
- Displacement (cc): 125.00
- Net Weight (Kg): 3.15
$ 683.99


ATHENA
070100
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 10 mm, Domed Head Piston
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.25
$ 220.95


ATHENA
P400485100003
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 54.00
- Displacement (cc): 125.00
- Compression Ratio: 14.8:1
- Net Weight (Kg): 1.50
$ 931.95


ATHENA
P400485100030
Big Bore Cylinder Kit Ø 58 mm, 144 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 58.00
- Displacement (cc): 144.00
- Bore Gain (mm): + 4
- Compression Ratio: 14.0:1
$ 1025.95


ATHENA
P400485100073
Big Bore Cylinder Kit Ø 85 mm, 300 cc to increase performance
Not available
Technical features
- Bore Diameter (mm): 85.00
- Displacement (cc): 304.15
- Bore Gain (mm): +8
- Compression Ratio: 13.3:1
$ 739.99

ATHENA
P400250100006
Standard Bore Cylinder Kit Ø 44,5 mm, 65 cc with Cylinder Head and Gaskets
Only 2 pieces
Technical features
- Bore Diameter (mm): 44.50
- Displacement (cc): 65.00
- Compression Ratio: 14.2:1
- Net Weight (Kg): 1.45
$ 662.95


ATHENA
P400485100010
Big Bore Cylinder Kit Ø 65 mm, 170 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 65.00
- Displacement (cc): 170.00
- Net Weight (Kg): 2.95
$ 891.95


ATHENA
P400130100002
Standard Bore Cylinder Kit Ø 40 mm, 50 cc, Compression 14,2:1
Only 1 piece
Technical features
- Bore Diameter (mm): 40.00
- Displacement (cc): 50.00
- Compression Ratio: 14.2:1
- Net Weight (Kg): 1.46
$ 238.99


ATHENA
069200/1
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Domed Head Piston
Only 1 piece
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.31
$ 237.95

ATHENA
P400270100003
Standard Bore Cylinder Kit Ø 76 mm, 250 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 76.00
- Displacement (cc): 250.00
- Compression Ratio: 12.8:1
- Net Weight (Kg): 1.80
$ 647.95

ATHENA
P400485100029
Big Bore Cylinder Kit Ø 58 mm, 144 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 58.00
- Displacement (cc): 144.00
- Compression Ratio: 14.0:1
- Net Weight (Kg): 1.50
$ 1025.95


ATHENA
074700/1
Big Bore Cylinder Kit With Head Long Stroke Ø 47,6 mm, 80 cc, Pin Ø 12 mm
Only 1 piece
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 80.00
- Net Weight (Kg): 1.29
$ 217.95


ATHENA
P400485100089
Big Bore Cylinder Kit with Head Ø 47,6 mm, Pin 10 mm, Flat Head Piston
Only 1 piece
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Compression Ratio: 13.8:1
$ 349.95


ATHENA
P400130100001
Big Bore Cylinder Kit Ø 47,6 mm, 70 cc, Compression 14,1:1
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 69.00
- Compression Ratio: 14.1:1
- Net Weight (Kg): 1.14
$ 315.99

ATHENA
P400485100011
Standard Bore Cylinder Kit Ø 77 mm, 250 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 77.00
- Displacement (cc): 250.00
- Compression Ratio: 12.5:1
- Net Weight (Kg): 1.76
$ 647.95

ATHENA
P400510100001
Standard Bore Cylinder Kit Ø 90 mm, 400 cc
20+ pieces
Technical features
- Bore Diameter (mm): 90.00
- Displacement (cc): 400.00
- Compression Ratio: 12.2:1
- Net Weight (Kg): 2.58
$ 647.95


ATHENA
P400485200001
Cylinder Head for OEM Cylinder
Only 2 pieces
Technical features
- Net Weight (Kg): 0.47
$ 236.95


ATHENA
072400/1
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Domed Head Piston
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.35
$ 301.95


ATHENA
082500
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc, Pin Ø 12 mm, Flat Head Piston
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.33
$ 374.95


ATHENA
070000/1
Standard Bore Cylinder Kit With Head Ø 40 mm, 50 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 40.00
- Displacement (cc): 50.00
- Net Weight (Kg): 1.31
$ 213.95


ATHENA
070400
Big Bore Cylinder Kit With Head Ø 47,6 mm, 70 cc
Only 4 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 70.00
- Net Weight (Kg): 1.55
$ 223.95


ATHENA
S410485308002
Modular Central Dome for 2T Athena Cylinder Kits
20+ pieces
Technical features
- Net Weight (Kg): 0.27
$ 65.95


ATHENA
P400485100072
Standard Bore Cylinder Kit Ø 77 mm, 250 cc with Gaskets
Only 2 pieces
Technical features
- Bore Diameter (mm): 77.00
- Displacement (cc): 250.00
- Compression Ratio: 13.9:1
- Line: Enduro
$ 647.95


ATHENA
075700
Big Bore Cylinder Kit Ø 47,6 mm, 70 cc, Compression 13,9:1
Only 2 pieces
Technical features
- Bore Diameter (mm): 47.60
- Displacement (cc): 69.00
- Compression Ratio: 13.9:1
- Net Weight (Kg): 1.43
$ 301.95


ATHENA
P400485100039
Big Bore Cylinder Kit Ø 53 mm, 112 cc with Cylinder Head and Crankshaft included
Only 1 piece
Technical features
- Bore Diameter (mm): 53.00
- Displacement (cc): 112.00
- Compression Ratio: 13.8:1
- Net Weight (Kg): 4.11
$ 1069.95


ATHENA
P400485100017
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Only 10 pieces
Technical features
- Bore Diameter (mm): 54.00
- Displacement (cc): 125.00
- Compression Ratio: 14.8:1
- Net Weight (Kg): 2.40
$ 931.95


ATHENA
063600
Big Bore Cylinder Kit Ø 45 mm, 70 cc
Only 4 pieces
Technical features
- Bore Diameter (mm): 45.00
- Displacement (cc): 70.00
- Net Weight (Kg): 1.35
$ 216.95


ATHENA
P400250100001
Standard Bore Cylinder Kit Ø 54 mm, 125 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 54.00
- Displacement (cc): 125.00
- Compression Ratio: 14.8:1
- Net Weight (Kg): 2.72
$ 814.95

ATHENA
P400270100006
Standard Bore Cylinder Kit Ø 88 mm, 350 cc
Only 2 pieces
Technical features
- Bore Diameter (mm): 88.00
- Displacement (cc): 350.00
- Compression Ratio: 14.6:1
- Net Weight (Kg): 1.85
$ 647.95