Select scooter type
Select manufacturer
Select model

Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Crankshaft OTTOPUNTOUNO for GILERA/PIAGGIO 50ccm 2T AC/LC
Part no.: SHF00300
€670.00
Including VAT Plus shipping
2,17kg / Piece
Product link copied to the clipboard
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle' Images may differ from the original
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
Product image for 'Crankshaft OTTOPUNTOUNOTitle'
New

Crankshaft OTTOPUNTOUNO

for GILERA/​PIAGGIO 50ccm 2T AC/​LC

  • stroke 47.0mm
  • conrod 100.0mm
  • pin 14mm
  • for crankcase POLINI Pre 100cc
 
TUNING RACE - for professionals
€670.00
Review now
Including VAT Plus shipping
2,17kg / Piece

Product description

Together with the cylinder and piston, the crankshaft represents the beating heart of any internal combustion engine. It is amongst the hardest working components and the conversion of the pistons stroke to a rotary movement places the highest demands on both quality and the care taken during construction.

The crankshaft should also be well balanced to reduce any unwanted vibrations and the oscillating mass kept to a minimum to support an efficient delivery of the power created by the motor.

The big-end bearing rotates at the same rate as the motors RPM, receives lubrication from the petrol/two-stroke oil gas mixture and must withstand two abrupt changes in direction of the piston for each motor revolution.

The crank-pin, connecting both crankshaft webs with the con rod, has to be pressed into the webs with a certain clearance to the openings in the webs. If this connection is not strong enough the crankshaft can twist and the crankshaft webs become misaligned and seize.

To ensure the big end bearing receives sufficient lubrication the big end of the con rod should be provided with slots to facilitate this.

 

These crankshafts are produced for OTTOPUNTOUNO in Italy and satisfy all of the above listed demands. They have concentrated their efforts to provide the highest quality combined with tried and tested technological features. This crankshaft includes a con rod of extremely high quality and they are made more enduring with an intensive polishing procedure that provides a more stable molecular structure. The smooth polished flanks of the con rod also help reduce turbulence. The polished con rods also have been optimized with a reduction in weight. They possess a gas-flowed profile and been modified around the big end to improve the bearings lubrication.

 

Crankshaft Longstroke OTTOPUNTOUNO R-18 for POLINI PRE engine case.

  • Stroke: 47mm
  • Con-rod: 100mm
  • Outer diameter: 84mm
  • Width: 44mm
  • Weight: 2 kg

Customers also searched for this product with:

Express Shipping Worldwide DHL, UPS, FEDEX
SIP Aid Scooterists help!

Product fits

News for you Discover great new products!

Ratings

There are currently no reviews. Be the first and help others with a detailed review.

Questions & answers

Let us and the community help you! You can ask your questions about the product here.

near Munich, Germany Visit our Flagship Store
Are you a retailer or would you like to become one?

Report an error

{{ __('contact.report_article.sku', { number: product.articlenumber }) }}
{{ __('form.maximum_text', { count: 500 - formData.message.length, max: 500 }) }}

Report content

Report content

{{ content.title }}

High-res product images

The following list is specifically for journalists interested in using information and pictures from the SIP Scootershop product range for their press coverage. All the materials (text and pictures) available in the download area of this website are subject to the copyright and other intellectual property rights of SIP Scootershop GmbH, Germany, and are offered for journalistic use only. No permission for commercial use!

Permission for any other use is subject to a request to SIP Scootershop GmbH, Marie-Curie-Str. 4, 86899 Landsberg am Lech, Germany, and requires formal written approval by the company.

File name File type File size
{{ item.name }} {{ formatBytes(item.size) }} Download