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Crankshaft

(198 products)
Scooter Crankshafts Bearings and Oil Seals Small End Bearings Crankshaft Accessories
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Product type
Bearing & gasket tools Bearing open Connecting rod kit Crankcase Crankshaft Crankshaft accessories Crankshaft bearing kit Needle bearing Oil seal Oil seal kit Woodruff key O-ring
Brand
2Fast Airsal Athena Bidalot Doppler Jasil Malossi MotoForce MotoForce Racing Naraku Ottopuntouno Peugeot Piaggio Polini RMS SKF Stage6 Stage6 R/T Standard Parts Top Performances Yamaha
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Naraku
Crankshaft Naraku HQ, GY6 139QMB/QMA, 16 teeth
Article no.: NK100.81

Crankshaft Naraku HQ, GY6 139QMB/QMA, 16 teeth

111,00 €
In stock
Doppler
Crankshaft Doppler S1R Peugeot horizontal
Article no.: CGN464918
1

Crankshaft Doppler S1R Peugeot horizontal

146,00 €
In stock
RRP
159,00 €
-8% Discount
Top Performances
Small End Bearing Top Performances 12x15x15mm
Article no.: T9921330

Small End Bearing Top Performances 12x15x15mm

5,50 €
In stock
Sale
MotoForce Racing
Crankshaft Motoforce Racing Peugeot vertical
Article no.: MF30.17502
2

Crankshaft Motoforce Racing Peugeot vertical

116,00 €
In stock
MotoForce Racing
Crankshaft Motoforce Racing Minarelli vertical
Article no.: MF30.16802
1

Crankshaft Motoforce Racing Minarelli vertical

75,50 €
In stock
RRP
95,00 €
-21% Discount
Sale
MotoForce Racing
Crankshaft Motoforce Racing Minarelli horizontal
Article no.: MF30.16602
6

Crankshaft Motoforce Racing Minarelli horizontal

85,00 €
In stock
RRP
95,00 €
-11% Discount
MotoForce Racing
Crankshaft Motoforce Racing Piaggio
Article no.: MF30.14002

Crankshaft Motoforce Racing Piaggio

110,00 €
In stock
Doppler
Crankshaft Doppler S1R Peugeot vertical
Article no.: CGN468199

Crankshaft Doppler S1R Peugeot vertical

149,00 €
In stock
RRP
159,00 €
-6% Discount
Doppler
Small End Bearing Doppler 12x16x15
Article no.: CGN461989

Small End Bearing Doppler 12x16x15

10,00 €
In stock
Standard Parts
Crankshaft 16 teeth 139QMB/QMA
Article no.: BT7001-16

Crankshaft 16 teeth 139QMB/QMA

43,00 €
In stock
44,00 €
-2% Discount
Standard Parts
Crankshaft GY6 139QMA / 139QMB 16 teeth
Article no.: MF30.13900

Crankshaft GY6 139QMA / 139QMB 16 teeth

53,00 €
In stock
Sale
Standard Parts
Crankshaft Motoforce Peugeot vertical after 2004 Euro 2
Article no.: MF30.17600
1

Crankshaft Motoforce Peugeot vertical after 2004 Euro 2

101,00 €
In stock
111,00 €
-9% Discount
Jasil
Crankshaft OEM quality Kymco Cobra / Grand Dink
Article no.: MF30.18500

Crankshaft OEM quality Kymco Cobra / Grand Dink

82,00 €
In stock
RRP
89,00 €
-8% Discount
Standard Parts
Crankshaft OEM quality Suzuki Katana (Morini AC)
Article no.: MF30.15100

Crankshaft OEM quality Suzuki Katana (Morini AC)

54,50 €
In stock
Standard Parts
Crankshaft OEM quality Yamaha Aerox 4-stroke
Article no.: CGN519894

Crankshaft OEM quality Yamaha Aerox 4-stroke

67,50 €
In stock
Naraku
Bushing Naraku 24x18x14mm TGB crankshaft
Article no.: NK105.23

Bushing Naraku 24x18x14mm TGB crankshaft

14,00 €
In stock
Piaggio
Crankshaft original Piaggio 50cc 2T
Article no.: OE-PIA4316255

Crankshaft original Piaggio 50cc 2T

87,00 €
In stock
Yamaha
Crankshaft MBK Booster / Yamaha BW's after 2004
Article no.: OE-MAL5WWE14000200

Crankshaft MBK Booster / Yamaha BW's after 2004

268,00 €
In stock
MotoForce
Crankshaft Motoforce Peugeot vertical
Article no.: MF30.17500

Crankshaft Motoforce Peugeot vertical

63,50 €
In stock soon
65,00 €
-2% Discount
MotoForce
Oil Seals for crankshaft Minarelli
Article no.: MF96.00030

Oil Seals for crankshaft Minarelli

6,50 €
In stock soon
RRP
7,10 €
-8% Discount
Stage6
Crankshaft Stage6 Pro Replica 10mm pin Minarelli horizontal
Article no.: S6-8116600
1

Crankshaft Stage6 Pro Replica 10mm pin Minarelli horizontal

119,00 €
In stock soon
RRP
132,00 €
-10% Discount
Stage6
Crankshaft Stage6 HPC MK2 Piaggio / Vespa
Article no.: S6-8014001
2

Crankshaft Stage6 HPC MK2 Piaggio / Vespa

199,00 €
In stock soon
RRP
221,00 €
-10% Discount
Stage6
Crankshaft Stage6 HPC MK2 12mm pin Minarelli horizontal
Article no.: S6-8016601/12
2

Crankshaft Stage6 HPC MK2 12mm pin Minarelli horizontal

189,00 €
In stock soon
RRP
210,00 €
-10% Discount
Stage6
Crankshaft Stage6 HPC MK2 10mm pin Minarelli horizontal
Article no.: S6-8016601
2

Crankshaft Stage6 HPC MK2 10mm pin Minarelli horizontal

179,00 €
In stock soon
RRP
198,00 €
-10% Discount
Stage6
Crankshaft Stage6 HPC Peugeot horizontal
Article no.: S6-8017801

Crankshaft Stage6 HPC Peugeot horizontal

169,00 €
In stock soon
RRP
187,00 €
-10% Discount
Stage6
Dummy Bearing 20x52x12mm Piaggio 50cc (x2)
Article no.: S6-8039103

Dummy Bearing 20x52x12mm Piaggio 50cc (x2)

12,00 €
In stock soon
Stage6
Woodruff Key offset (advanced ignition) Stage6 Minarelli
Article no.: S6-80516601

Woodruff Key offset (advanced ignition) Stage6 Minarelli

8,40 €
In stock soon
Stage6 R/T
Crankshaft Stage6 R/T 85mm conrod 12mm pin Minarelli horizontal
Article no.: S6-7916601

Crankshaft Stage6 R/T 85mm conrod 12mm pin Minarelli horizontal

249,00 €
In stock soon
RRP
276,00 €
-10% Discount
Stage6 R/T
Crankshaft Stage6 R/T 85mm conrod Piaggio
Article no.: S6-7914001
1

Crankshaft Stage6 R/T 85mm conrod Piaggio

249,00 €
In stock soon
RRP
276,00 €
-10% Discount
Stage6 R/T
Crankshaft Stage6 R/T 90mm conrod Malossi C-One
Article no.: S6-7914010

Crankshaft Stage6 R/T 90mm conrod Malossi C-One

379,00 €
In stock soon
RRP
421,00 €
-10% Discount
2Fast
Crankcase Spacer 5mm 2Fast Minarelli horizontal
Article no.: TFAST122

Crankcase Spacer 5mm 2Fast Minarelli horizontal

38,00 €
In stock soon
RMS
Bearing SKF 6203-C5 TN9 - 17x40x12mm Vespa Primavera
Article no.: R100200080

Bearing SKF 6203-C5 TN9 - 17x40x12mm Vespa Primavera

8,90 €
In stock soon
2Fast
Crankshaft 2Fast 47mm stroke / 95mm conrod Minarelli horizontal
Article no.: TFAST087

Crankshaft 2Fast 47mm stroke / 95mm conrod Minarelli horizontal

454,00 €
In stock soon
2Fast
Crankshaft 2Fast 47mm stroke Malossi C-one / RC-one
Article no.: TFAST076

Crankshaft 2Fast 47mm stroke Malossi C-one / RC-one

542,00 €
In stock soon
2Fast
Crankshaft 2Fast 39,3mm stroke / 90mm conrod C-One / P.R.E.
Article no.: TFAST070

Crankshaft 2Fast 39,3mm stroke / 90mm conrod C-One / P.R.E.

519,00 €
In stock soon
2Fast
Crankshaft 2Fast HQ 85mm connecting rod Piaggio
Article no.: TFAST062

Crankshaft 2Fast HQ 85mm connecting rod Piaggio

483,00 €
In stock soon
2Fast
Crankshaft 2Fast 45,8mm stroke / 90mm conrod Minarelli horizontal
Article no.: TFAST034

Crankshaft 2Fast 45,8mm stroke / 90mm conrod Minarelli horizontal

452,00 €
In stock soon
RRP
466,00 €
-3% Discount
Airsal
Crankshaft Airsal Racing Xtrem 85mm conrod / 45mm stroke Minarelli horizontal
Article no.: C31073350

Crankshaft Airsal Racing Xtrem 85mm conrod / 45mm stroke Minarelli horizontal

218,00 €
In stock soon
RRP
240,00 €
-9% Discount
Ottopuntouno Racing Parts
Crankshaft Ottopuntouno 8.1 Malossi RC-One
Article no.: OPU005

Crankshaft Ottopuntouno 8.1 Malossi RC-One

611,00 €
In stock soon
Malossi
Crankshaft Malossi MHR RHQ 10mm pin Minarelli horizontal
Article no.: M537891

Crankshaft Malossi MHR RHQ 10mm pin Minarelli horizontal

246,00 €
In stock soon
RRP
273,00 €
-10% Discount
Doppler
Crankshaft Doppler Endurance Piaggio NRG / Gilera Stalker
Article no.: CGN441281
1

Crankshaft Doppler Endurance Piaggio NRG / Gilera Stalker

149,00 €
In stock soon
Jasil
Crankshaft reinforced 12mm pin 16mm stub CPI
Article no.: MF30.19505
2

Crankshaft reinforced 12mm pin 16mm stub CPI

108,00 €
In stock soon
Jasil
Crankshaft Jasil China 2-stroke 12mm pin 16mm stub
Article no.: JA6030118

Crankshaft Jasil China 2-stroke 12mm pin 16mm stub

81,50 €
In stock soon
Jasil
Crankshaft Morini AC
Article no.: MF30.15700

Crankshaft Morini AC

87,00 €
In stock soon
Stage6 R/T
Crankshaft Stage6 R/T 44mm stroke / 90mm conrod Piaggio / Vespa
Article no.: S6-7914096

Crankshaft Stage6 R/T 44mm stroke / 90mm conrod Piaggio / Vespa

379,00 €
Currently not in stock
RRP
421,00 €
-10% Discount
Standard Parts
Crankshaft Oil Seal - 24x43x6mm Kymco
Article no.: OE-KYM20926

Crankshaft Oil Seal - 24x43x6mm Kymco

3,50 €
Currently not in stock
Naraku
Crankshaft bearings Naraku, Honda
Article no.: NK100.66

Crankshaft bearings Naraku, Honda

42,00 €
Currently not in stock
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical (GR1)
Article no.: NK104.07

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical (GR1)

38,00 €
Currently not in stock
Naraku
Crankshaft Bearings and Oil Seals FKM Naraku Honda X8R
Article no.: NK104.24

Crankshaft Bearings and Oil Seals FKM Naraku Honda X8R

61,00 €
Currently not in stock
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal
Article no.: NK104.25

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal

48,00 €
Currently not in stock
Naraku
Crankshaft Bearing Set Naraku HD Morini 50cc 2T
Article no.: NK104.06

Crankshaft Bearing Set Naraku HD Morini 50cc 2T

38,50 €
Currently not in stock
39,00 €
-1% Discount
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal
Article no.: NK104.02

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal

41,00 €
Currently not in stock
Standard Parts
Crankshaft Bearings and Oil Seals Yamaha Aerox 4-stroke
Article no.: SP-49395

Crankshaft Bearings and Oil Seals Yamaha Aerox 4-stroke

29,50 €
Currently not in stock
30,50 €
-3% Discount
Standard Parts
Crankshaft Bearings and Oil Seals PGO Big Max
Article no.: MF33.18600

Crankshaft Bearings and Oil Seals PGO Big Max

30,00 €
Currently not in stock
Malossi
Crankshaft Malossi MHR Team 44mm stroke / 90mm conrod Piaggio
Article no.: M5316029

Crankshaft Malossi MHR Team 44mm stroke / 90mm conrod Piaggio

622,00 €
Currently not in stock
Malossi
Crankshaft Malossi MHR RHQ Peugeot horizontal
Article no.: M5312781
1

Crankshaft Malossi MHR RHQ Peugeot horizontal

366,00 €
Currently not in stock
RRP
376,00 €
-3% Discount
Malossi
Crankshaft Malossi MHR RHQ 12mm pin 85mm conrod Minarelli horizontal
Article no.: M538855

Crankshaft Malossi MHR RHQ 12mm pin 85mm conrod Minarelli horizontal

255,00 €
Currently not in stock
RRP
273,00 €
-7% Discount
Polini
Crankshaft Polini PRE4 100cc Piaggio / Minarelli
Article no.: P210.0086

Crankshaft Polini PRE4 100cc Piaggio / Minarelli

612,00 €
Currently not in stock
RRP
719,00 €
-15% Discount
Malossi
Crankshaft 47mm stroke 100mm conrod Malossi Testa Rossa FL100
Article no.: M5318730

Crankshaft 47mm stroke 100mm conrod Malossi Testa Rossa FL100

756,00 €
Currently not in stock
RRP
815,00 €
-7% Discount
Doppler
Crankshaft Doppler Endurance 12mm pin Minarelli vertical
Article no.: CGN441278

Crankshaft Doppler Endurance 12mm pin Minarelli vertical

152,00 €
Currently not in stock
RRP
155,00 €
-2% Discount
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Scooter Crankshafts: Reliability and Performance

The cranktrain primarily refers to the crankshaft, crankshaft bearings, and oil seals. In our online shop, this category also includes piston pin bearings (small end bearings) as well as matching spare parts and accessories.

The crankshaft and its components require special attention regarding performance and reliability.

All components are available for the most popular models (Yamaha Aerox and Jog R, Piaggio Zip, NRG and Typhoon, Peugeot Kisbee and TKR, etc.) with engines from Minarelli, Piaggio, Peugeot, Kymco, Morini, or GY6.

Crankshaft

The crankshaft is the central component of the cranktrain. It must always match the cylinder: the more powerful the cylinder, the more robust the crankshaft should be. Depending on the setup, it is also important to ensure that the stroke and connecting rod length are compatible, as effective engine tuning is precision work.

To make selection easier, we have divided cylinders and crankshafts into performance levels: Original, Sport, Racing, and High-End.

We offer crankshafts from renowned brands such as Stage6, Stage6 R/T, Motoforce, Malossi, Polini, 2Fast, and many others.

Crankshaft Bearings and Oil Seals

Even in stock engines, it is usually not the crankshaft itself that wears out, but rather the bearings and oil seals. These should be replaced regularly, not only in tuned engines but also in original setups.

For tuned engines, reinforced bearings are explicitly recommended.

Our range includes brands such as Stage6 R/T, SKF, Polini, and Motoforce.

small end Bearings and Accessories

The small end bearing (needle bearing) is usually replaced together with the piston. However, since it sits on the connecting rod and its size also depends on it, it is assigned to the crankshaft category.

Warning: Always check for the correct size! Some cylinder kits use larger piston pins than the original.

Accessories include replacement connecting rods, woodruff keys (standard or offset for adjusting ignition timing), shims, and other specific components.

FAQ – Frequently Asked Questions about Crankshafts

→ Do I need to replace the crankshaft when increasing displacement? Yes. Original crankshafts are generally not designed for higher torque and increased RPM and should be replaced with a reinforced or racing version.

→ Can I replace the crankshaft myself? This is a demanding task that requires special tools. Without experience, it is recommended to leave this task to a professional to avoid damage. If you want to do it yourself, follow the workshop manual closely or use appropriate guides / tutorials.
Note: The same special tools are required for changing bearings and oil seals.

→ How do I recognize worn bearings? Strong, unusual vibrations throughout the vehicle are a typical sign. Often, a grinding or rumbling noise can be heard while the engine is running.

→ How do I recognize defective oil seals? Leaking oil seals allow false air into the engine, leading to a lean mixture. Typical symptoms include unstable idling, poor engine performance, and a light-colored / whitish spark plug.

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