Long Stroke Racing Crankshaft, Pin Ø 12 mm
Maximization of performances
Resistance to extreme stress
Perfectly match the original
Race Use Only Product - Please check details on the "Race use only" footer's section
Description
Athena’s crankshaft are made of premium materials combined with the latest production technology. Designed for top-performance engines, they ensure maximum performance with high-powered engines in situation of greater stress. These products are also suitable for tuned-up engines and ensure maximum performance that lasts over time. Athena offers the following range of crankshafts:
a) Original: perfect replacement for the original crankshaft, but with improved balance and a lighter connecting rod. Each kit includes a special bearing cage.
b) Racing: available with hole for wrist pin of small end casing measuring Ø10mm or Ø12mm. Available with a lighter crankshaft and special bearing cages. Differs from the Original Kit for its solid crank shaft handles, made entirely by milling to reduce the volume of the crank handle case.
c) Long Stroke Racing: same as the Ø12mm Racing crankshaft, but with longer stroke. This kit can be combined with Athena Long Stroke Racing cylinder kit, to increase cylinder capacity to 80cm3.
Technical features
| Big End Bearing (mm) | 16x22x12 |
| Crank Radius (mm) | 21.50 |
| Net Weight (Kg) | 1.18 |
| Pivot Fly Wheel Diameter (mm) | 20.00 |
| Pivot Fly Wheel Length (mm) | 79.70 |
| Pivot Pulley Diameter (mm) | 20.00 |
| Pivot Pulley Length (mm) | 94.50 |
| Shoulder Width (mm) | 37.95 |
| Small End Bearing (mm) | 12x16x15 |
| Stroke (mm) | 43.00 |
Vehicle compatibility
| APRILIA AMICO 50 cc 1994/1998 |
| GARELLI BIG WHEEL 50 cc |
| ITALJET ASCOT 50 cc |
| ITALJET ASTRA 50 cc |
| ITALJET PISTA 2 YANKEE 50 cc 1995/1996 |
| ITALJET REPORTER 50 cc |
| ITALJET SCOOP 2/3 50 cc |
| KOTIR SR 50 cc |
| KTM CHRONO 50 cc |
| MBK BOOSTER CW 50 cc 1990/1994 |
| MBK BOOSTER CW 50 cc 2001/2002 |
| MBK BOOSTER CW L 50 cc 2001/2003 |
| MBK BOOSTER CW L SPIRIT 50 cc 2003 |
| MBK BOOSTER CW NAKED 50 cc 2003 |
| MBK BOOSTER CW R ROAD 50 cc 1994/1995 |
| MBK BOOSTER CW RS NG 50 cc 1995/2003 |
| MBK BOOSTER CW RS NG EURO1 50 cc 1999/2000 |
| MBK BOOSTER CW RSP ROCKET 50 cc 1997/1998 |
| MBK BOOSTER CW RSX TRACK 50 cc 1996/1998 |
| MBK BOOSTER CW SPIRIT 50 cc 1996/2000 |
| MBK BOOSTER CW SPIRIT EURO2 50 cc 2002/2003 |
| MBK EW STUNT 50 cc 2000/2002 |
| YAMAHA BW'S 50 cc 2004/2015 |
| YAMAHA BW'S BUMP 50 cc 1997/1998 |
| YAMAHA BW'S EASY 50 cc 2013 |
| YAMAHA BW'S NAKED 50 cc 2003 |
| YAMAHA BW'S NAKED 50 cc 2009/2012 |
| YAMAHA BW'S NEXT GENERATION 50 cc 1997/2005 |
| YAMAHA BW'S NEXT GENERATION KAT 50 cc 1999/2000 |
| YAMAHA BW'S ORIGINAL / SPY 50 cc 1997/2002 |
| YAMAHA BW'S R 50 cc 2001 |
| YAMAHA CW BW'S ORIGINAL EURO2 50 cc 2002 |
| YAMAHA CW L BW'S 50 cc 2003 |
| YAMAHA CW RS SPY 50 cc 1995/1998 |
| YAMAHA EW SLIDER 50 cc 2000/2002 |
| YAMAHA YW50 ZUMA 50 cc |
- Stroke (mm): 43.00
- Crank Radius (mm): 21.50
- Small End Bearing (mm): 12x16x15
- Big End Bearing (mm): 16x22x12
- Stroke (mm): 51.10
- Crank Radius (mm): 25.55
- Big End Bearing (mm): 20x26x13,8
- Pivot Pulley Diameter (mm): 20.00
- Stroke (mm): 44.00
- Crank Radius (mm): 22.00
- Small End Bearing (mm): 12x16x15
- Big End Bearing (mm): 16x22x12
- Stroke (mm): 39.20
- Crank Radius (mm): 19.50
- Small End Bearing (mm): 12x17x15
- Big End Bearing (mm): 18x24x12
- Stroke (mm): 39.20
- Crank Radius (mm): 19.60
- Small End Bearing (mm): 12x15x15
- Pivot Pulley Diameter (mm): 20.00
- Stroke (mm): 39.20
- Small End Bearing (mm): 12x17x15
- Pivot Pulley Diameter (mm): 20.00
- Pivot Fly Wheel Diameter (mm): 20.00
- Stroke (mm): 40.00
- Crank Radius (mm): 20.00
- Small End Bearing (mm): 12x15x15
- Big End Bearing (mm): 16x22x12
- Net Weight (Kg): 0.06
- Oil Seal Height (mm): 11.00
- Oil Seal External Diameter (mm): 54.00
- Oil Seal Internal Diameter (mm): 41.00
- Net Weight (Kg): 0.40
- Net Weight (Kg): 0.06
- Oil Seal Height (mm): 10.50
- Oil Seal External Diameter (mm): 53.00
- Oil Seal Internal Diameter (mm): 41.00
- Net Weight (Kg): 0.05
- Oil Seal Height (mm): 11.00
- Oil Seal External Diameter (mm): 54.00
- Oil Seal Internal Diameter (mm): 43.00
- Net Weight (Kg): 0.05
- Oil Seal Height (mm): 10.50
- Oil Seal External Diameter (mm): 52.00
- Oil Seal Internal Diameter (mm): 40.00
- Net Weight (Kg): 0.05
- Oil Seal Height (mm): 11.00
- Oil Seal External Diameter (mm): 48.00
- Oil Seal Internal Diameter (mm): 35.00
- Manufacturer: NOK
- Net Weight (Kg): 0.05
- Oil Seal Height (mm): 11.50
- Oil Seal External Diameter (mm): 57.90
United States