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Crankshafts

(103 products)
Crankshaft Crankshafts Bearings and Oil Seals Small End Bearings Crankshaft Accessories
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103
103
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found
103
103
products
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Tuning level
Original Sport Racing High-end
Piston pin
10 mm 12 mm 13 mm 14 mm
Stroke
Original 41,5 mm 43 mm 44 mm 45 mm 45,8 mm 47 mm
Conrod length
Standard 85 mm 90 mm 95 mm 100 mm
Brand
2Fast Airsal Athena Doppler Jasil Malossi MotoForce MotoForce Racing Naraku Ottopuntouno Peugeot Piaggio Polini Stage6 Stage6 R/T Standard Parts Top Performances Yamaha
Price
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MotoForce
Crankshaft Motoforce 22 teeth GY6 50cc 4T
Article no.: MF30.13901

Crankshaft Motoforce 22 teeth GY6 50cc 4T

49,00 €
In stock
RRP
63,00 €
-22% Discount
Sale
MotoForce
Crankshaft Motoforce Peugeot / Sym 50cc 4T
Article no.: MF30.13400

Crankshaft Motoforce Peugeot / Sym 50cc 4T

58,00 €
In stock
RRP
68,50 €
-15% Discount
Sale
MotoForce
Crankshaft Motoforce Peugeot horizontal
Article no.: MF30.17700
2

Crankshaft Motoforce Peugeot horizontal

53,00 €
In stock
MotoForce
Crankshaft OEM quality MotoForce Piaggio Zip 4T
Article no.: MF30.14010

Crankshaft OEM quality MotoForce Piaggio Zip 4T

53,50 €
In stock
MotoForce
Crankshaft OEM quality 10mm MotoForce Peugeot Kisbee 4T
Article no.: MF30.17801

Crankshaft OEM quality 10mm MotoForce Peugeot Kisbee 4T

49,50 €
In stock
MotoForce
Crankshaft MotoForce 10mm pin PGO Big Max
Article no.: MF30.18601

Crankshaft MotoForce 10mm pin PGO Big Max

79,00 €
In stock
MotoForce
Crankshaft reinforced MotoForce Peugeot horizontal
Article no.: MF30.17703

Crankshaft reinforced MotoForce Peugeot horizontal

99,00 €
In stock
MotoForce
Crankshaft reinf. MotoForce Peugeot TKR from 2004 w. compressor
Article no.: MF30.17501

Crankshaft reinf. MotoForce Peugeot TKR from 2004 w. compressor

79,00 €
In stock
MotoForce
Crankshaft reinforced MotoForce Minarelli vertical
Article no.: MF30.16801
37

Crankshaft reinforced MotoForce Minarelli vertical

59,50 €
In stock
MotoForce
Crankshaft Motoforce Minarelli vertical
Article no.: MF30.16800
15

Crankshaft Motoforce Minarelli vertical

48,00 €
In stock
MotoForce
Crankshaft reinforced MotoForce Minarelli horizontal
Article no.: MF30.16601
13

Crankshaft reinforced MotoForce Minarelli horizontal

43,00 €
In stock
RRP
62,00 €
-31% Discount
Sale
MotoForce
Crankshaft Motoforce Minarelli horizontal
Article no.: MF30.16600
12

Crankshaft Motoforce Minarelli horizontal

38,50 €
In stock
MotoForce
Crankshaft reinforced MotoForce Piaggio
Article no.: MF30.14001
11

Crankshaft reinforced MotoForce Piaggio

56,50 €
In stock
RRP
58,50 €
-3% Discount
MotoForce
Crankshaft Motoforce Piaggio / Gilera
Article no.: MF30.14000
7

Crankshaft Motoforce Piaggio / Gilera

35,50 €
In stock
RRP
37,00 €
-4% Discount
MotoForce
Crankshaft Motoforce Peugeot horizontal w/o pump
Article no.: MF30.17702

Crankshaft Motoforce Peugeot horizontal w/o pump

67,00 €
In stock
Stage6
Crankshaft Stage6 HPC PGO Big Max / T-Rex
Article no.: S6-8018600

Crankshaft Stage6 HPC PGO Big Max / T-Rex

148,00 €
In stock
RRP
205,00 €
-28% Discount
Sale
Stage6
Crankshaft Stage6 Pro Replica 12mm pin Minarelli horizontal
Article no.: S6-8116600/12

Crankshaft Stage6 Pro Replica 12mm pin Minarelli horizontal

129,00 €
In stock
RRP
143,00 €
-10% Discount
Stage6
Crankshaft Stage6 Pro Replica Peugeot horizontal
Article no.: S6-8117800
2

Crankshaft Stage6 Pro Replica Peugeot horizontal

119,00 €
In stock
RRP
132,00 €
-10% Discount
Stage6
Crankshaft Stage6 Pro Replica 10mm pin Minarelli vertical
Article no.: S6-8116800
1

Crankshaft Stage6 Pro Replica 10mm pin Minarelli vertical

119,00 €
In stock
RRP
132,00 €
-10% Discount
Stage6
Crankshaft Stage6 Pro Replica Piaggio (NRG / Gilera Stalker)
Article no.: S6-8114000
1

Crankshaft Stage6 Pro Replica Piaggio (NRG / Gilera Stalker)

119,00 €
In stock
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
RRP
221,00 €
-10% Discount
Stage6
Crankshaft Stage6 Pro Replica Peugeot horizontal (w/o air pump)
Article no.: S6-8117801

Crankshaft Stage6 Pro Replica Peugeot horizontal (w/o air pump)

119,00 €
In stock
RRP
129,00 €
-8% Discount
Stage6
Crankshaft Stage6 Pro Replica Peugeot vertical after 2004
Article no.: S6-8117502

Crankshaft Stage6 Pro Replica Peugeot vertical after 2004

119,00 €
In stock
RRP
129,00 €
-8% Discount
Stage6
Crankshaft Stage6 HPC Peugeot horizontal
Article no.: S6-8017801

Crankshaft Stage6 HPC Peugeot horizontal

152,00 €
In stock
RRP
187,00 €
-19% Discount
Sale
Stage6
Crankshaft Stage6 HPC Peugeot vertical
Article no.: S6-8017505

Crankshaft Stage6 HPC Peugeot vertical

179,00 €
In stock
RRP
198,00 €
-10% Discount
Stage6 R/T
Crankshaft Stage6 R/T 44mm stroke / 90mm conrod Minarelli
Article no.: S6-7916605

Crankshaft Stage6 R/T 44mm stroke / 90mm conrod Minarelli

379,00 €
In stock
RRP
421,00 €
-10% Discount
2Fast
Crankshaft 2Fast 39,3mm stroke / 85mm conrod Minarelli horizontal
Article no.: TFAST084

Crankshaft 2Fast 39,3mm stroke / 85mm conrod Minarelli horizontal

458,00 €
In stock
Polini
Crankshaft Polini Evolution P.R.E. 70cc Piaggio Zip
Article no.: P210.0050

Crankshaft Polini Evolution P.R.E. 70cc Piaggio Zip

431,00 €
In stock
RRP
565,00 €
-24% Discount
Sale
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
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
RRP
466,00 €
-3% Discount
Top Performances
Crankshaft Top Performances 44mm stroke / 85mm conrod Minarelli horizontal
Article no.: T9925980
2

Crankshaft Top Performances 44mm stroke / 85mm conrod Minarelli horizontal

164,00 €
In stock
RRP
235,00 €
-30% Discount
Sale
Airsal
Crankshaft Airsal Racing Xtrem 85mm conrod / 45mm stroke Minarelli horizontal
Article no.: C31073350

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

174,00 €
In stock
RRP
240,00 €
-28% Discount
Sale
Polini
Crankshaft Polini PRE4 70cc Piaggio / Minarelli
Article no.: P210.0085

Crankshaft Polini PRE4 70cc Piaggio / Minarelli

607,00 €
In stock
RRP
714,00 €
-15% Discount
Malossi
Crankshaft Malossi MHR RHQ 44mm stroke / 90mm conrod Minarelli horizontal
Article no.: M5317827

Crankshaft Malossi MHR RHQ 44mm stroke / 90mm conrod Minarelli horizontal

559,00 €
In stock
RRP
676,00 €
-17% Discount
2Fast
Crankshaft 2Fast 44mm stroke / 90mm conrod Minarelli horizontal
Article no.: TFAST026
5

Crankshaft 2Fast 44mm stroke / 90mm conrod Minarelli horizontal

404,00 €
In stock
Sale
Malossi
Crankshaft Malossi MHR Team Replica 85mm conrod Piaggio
Article no.: M539212
1

Crankshaft Malossi MHR Team Replica 85mm conrod Piaggio

349,00 €
In stock
RRP
393,00 €
-11% Discount
Ottopuntouno Racing Parts
Crankshaft Ottopuntouno 8.1 85mm conrod 85mm Minarelli horizontal
Article no.: OPU002

Crankshaft Ottopuntouno 8.1 85mm conrod 85mm Minarelli horizontal

491,00 €
In stock
RRP
599,00 €
-18% Discount
Malossi
Crankshaft Malossi MHR RHQ Suzuki Katana AC before 1999
Article no.: M539592
1

Crankshaft Malossi MHR RHQ Suzuki Katana AC before 1999

254,00 €
In stock
RRP
318,00 €
-20% Discount
Sale
Doppler
Crankshaft Doppler Endurance Peugeot horizontal
Article no.: CGN464917
3

Crankshaft Doppler Endurance Peugeot horizontal

148,00 €
In stock
RRP
179,00 €
-17% Discount
Sale
Doppler
Crankshaft Doppler Endurance 12mm pin Minarelli vertical
Article no.: CGN441278
1

Crankshaft Doppler Endurance 12mm pin Minarelli vertical

136,00 €
In stock
RRP
155,00 €
-12% Discount
Sale
Athena
Crankshaft Athena 43mm stroke 85mm conrod 12mm pin Minarelli vertical
Article no.: ATH070314/2

Crankshaft Athena 43mm stroke 85mm conrod 12mm pin Minarelli vertical

149,00 €
In stock
Athena
Crankshaft Athena stroke 43mm / conrod 85mm Minarelli
Article no.: AT-S410485320004

Crankshaft Athena stroke 43mm / conrod 85mm Minarelli

124,00 €
In stock
145,00 €
-14% Discount
Sale
Doppler
Crankshaft Doppler Endurance Yamaha BW's / Slider
Article no.: CGN441277
27

Crankshaft Doppler Endurance Yamaha BW's / Slider

134,00 €
In stock
RRP
149,00 €
-10% Discount
Sale
Malossi
Crankshaft Malossi MHR RHQ 12mm pin Minarelli horizontal
Article no.: M538009
5

Crankshaft Malossi MHR RHQ 12mm pin Minarelli horizontal

257,00 €
In stock
RRP
273,00 €
-6% Discount
Naraku
Crankshaft Naraku Yamaha / MBK 50cc 4-stroke
Article no.: NK600.57

Crankshaft Naraku Yamaha / MBK 50cc 4-stroke

94,00 €
In stock
118,00 €
-20% Discount
Sale
Doppler
Crankshaft Doppler Endurance Peugeot Speedfight Euro 2 after 2004
Article no.: CGN468200

Crankshaft Doppler Endurance Peugeot Speedfight Euro 2 after 2004

125,00 €
In stock
RRP
169,00 €
-26% Discount
Sale
Doppler
Crankshaft Doppler S1R Peugeot horizontal
Article no.: CGN464918
1

Crankshaft Doppler S1R Peugeot horizontal

146,00 €
In stock
RRP
159,00 €
-8% Discount
MotoForce Racing
Crankshaft Motoforce Racing Peugeot vertical
Article no.: MF30.17502
3

Crankshaft Motoforce Racing Peugeot vertical

116,00 €
In stock
MotoForce Racing
Crankshaft Motoforce Racing Minarelli vertical
Article no.: MF30.16802
30

Crankshaft Motoforce Racing Minarelli vertical

95,00 €
In stock
MotoForce Racing
Crankshaft Motoforce Racing Piaggio
Article no.: MF30.14002
12

Crankshaft Motoforce Racing Piaggio

110,00 €
In stock
Doppler
Crankshaft Doppler S1R Peugeot vertical
Article no.: CGN468199
3

Crankshaft Doppler S1R Peugeot vertical

134,00 €
In stock
RRP
159,00 €
-16% Discount
Sale
Jasil
Crankshaft OEM quality Kymco Cobra / Grand Dink
Article no.: MF30.18500

Crankshaft OEM quality Kymco Cobra / Grand Dink

66,00 €
In stock
RRP
89,00 €
-26% Discount
Sale
Standard Parts
Crankshaft OEM quality Suzuki Katana (Morini AC)
Article no.: MF30.15100

Crankshaft OEM quality Suzuki Katana (Morini AC)

54,50 €
In stock
Piaggio
Crankshaft original Piaggio 50cc 2T
Article no.: OE-PIA4316255

Crankshaft original Piaggio 50cc 2T

87,00 €
In stock
MotoForce
Crankshaft Motoforce Peugeot vertical
Article no.: MF30.17500
3

Crankshaft Motoforce Peugeot vertical

63,50 €
In stock soon
65,00 €
-2% Discount
Stage6
Crankshaft HPC MK2 Piston Pin Stage6=10mm Yamaha BW's
Article no.: S6-8016805
3

Crankshaft HPC MK2 Piston Pin Stage6=10mm Yamaha BW's

179,00 €
In stock soon
RRP
198,00 €
-10% Discount
Stage6
Crankshaft HPC MK2 Piston Pin Stage6 12mm Yamaha BW's
Article no.: S6-8016805/12
1

Crankshaft HPC MK2 Piston Pin Stage6 12mm Yamaha BW's

189,00 €
In stock soon
RRP
210,00 €
-10% Discount
Stage6
Crankshaft Stage6 Pro Replica 10mm pin Minarelli horizontal
Article no.: S6-8116600

Crankshaft Stage6 Pro Replica 10mm pin Minarelli horizontal

119,00 €
In stock soon
RRP
132,00 €
-10% Discount
Stage6
Crankshaft Stage6 HPC MK2 12mm pin Minarelli horizontal
Article no.: S6-8016601/12
1

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
3

Crankshaft Stage6 HPC MK2 10mm pin Minarelli horizontal

179,00 €
In stock soon
RRP
198,00 €
-10% Discount
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12

Crankshaft

The crankshaft is a central component of every engine. It converts the linear motion of the piston into a consistent rotational movement. In doing so, it is exposed to high loads from combustion, friction, and temperatures. Weight and balancing also influence performance.

A defective crankshaft can cause significant damage, often affecting the crankcases as well. It should therefore always be in perfect condition and match the engine’s performance level.

To make selection easier, especially for mopeds, scooters, and 50cc gear bikes, we have divided crankshafts into performance categories. The key information can be found below.

Our crankshaft categories

As with cylinders and exhausts, which largely determine engine performance, we distinguish four categories: Original, Sport, Racing, and High-End.

✅ Crankshaft Original

→ FEATURES: Matches the manufacturer’s original specifications

→ ADVANTAGES: Cost-effective, easy installation without modifications

→ REQUIREMENTS: Replacement of bearings and seals recommended

→ WELL-KNOWN BRANDS: Motoforce, Standard Parts, Yamaha, Rieju

✅ Crankshaft Sport & Racing

→ FEATURES: Reinforced, optimized webs, special materials, stroke matched to cylinder size

→ ADVANTAGES: Increased reliability, improved pre-compression, improved torque and RPM range

→ REQUIREMENTS: Reinforced bearings. If stroke or connecting rod differ, modifications to the engine cases are required.

→ BRANDS: Stage6, Stage6 R/T, Polini, Malossi, Motoforce Racing, MVT, Airsal

✅ Crankshaft High-End

→ FEATURES: Heavily reinforced, optimized balancing, forged connecting rod, reinforced needle bearings, precise balancing with inserts, adapted stroke (stroker)

→ ADVANTAGES: High durability, designed for high performance, optimized output

→ REQUIREMENTS: Engine case machining depending on the model, reinforced bearings, installation by a specialist recommended

→ SPECIALIZED BRANDS: Stage6 R/T, 2Fast, Top Performances, Ottopuntouno, Polini

Summary:

As performance and displacement increase, a reinforced crankshaft becomes more important. Many manufacturers design their crankshafts to match their cylinders. Combining both ensures a balanced setup in terms of power, torque, and durability.

Why replace the crankshaft?

Like most rotating components, the crankshaft is a typical wear part. Technically, bearings, journals, and the small end bearing are affected the most. These can be replaced individually, but the process is complex and requires special tools, so the entire crankshaft is often replaced.

Typical signs include increased vibrations or unusual noises. Experienced mechanics may also notice a grinding sound. In such cases, the crankshaft should be replaced.

When tuning, the original crankshaft should be replaced with a reinforced version.

Crankshaft installation

Always use new bearings and seals. Proper alignment is important to avoid vibrations and damage.

IMPORTANT: If you don't have any experience, installation should be carried out by a professional workshop.

Crankshaft maintenance

Regular checks and timely replacement of bearings and seals are essential. Each time the engine is opened, for example during a piston replacement, tolerances should be checked.

Watch for unusual noises or vibrations, as these are often early signs of wear. If bearings make noise or the engine vibrates, action should be taken early to prevent damage to the cylinder or engine cases.

Crankshafts for scooters, mopeds, and 50cc geared mopeds: our range

In our shop, you will find original and reinforced crankshafts for common engines such as Minarelli AM6, Derbi Euro 2 / Euro 3, Minarelli horizontal and vertical, Piaggio, Peugeot, Peugeot 103, and AV7 / AV10, as well as others, including less common engines like Morini, GY6, or Sachs.

This also covers many popular models, with suitable parts for Rieju MRT, Beta RR, Derbi Senda, Yamaha Aerox, Piaggio Zip, Peugeot 103, or Piaggio Ciao, among others.

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