Clutch crown wheel, 47 tooth (4, 5, 6 plate) MB

MRB0675K

We were so disappointed with the standard of available sprockets that we decided to have our own made.

They are made in the UK to a very high standard.

They are designed to be used with the more reliable Li, Sx type clutch bearings rather than the GP style bush.

This sprocket can work with 4 / 5 plates or 6 plate internal type clutch conversions and has 47 teeth.

Designed by Mark Broadhurst and MRB



Clutch crown wheel, 47 tooth (4, 5, 6 plate) MB
  • Clutch crown wheel, 47 tooth (4, 5, 6 plate) MB
  • Clutch crown wheel, 47 tooth (4, 5, 6 plate) MB

£ 106.55
Price: £ 88.79 Ex Vat



Related Items (2)

Features

  • Light weight with hardened clutch bearing bush so improved needle roller bearings can be used.
  • Machined deeper so 4 or 5 or 6 plates can be fitted and helps prevent clutch drag.

Technical

  • Designed by Mark Broadhurst.
  • Made in the UK using modern steels, lightened and precision CNC machined.

Development History

  • Fed up of poor inferior products we designed our own.
  • What ever product was used extra machining and grinding was required.
  • The precision of the crown wheel is very important for chain and clutch life.

Reasons to Buy

  • Lightweight.
  • Strong.
  • Hardened.
  • Precision machined.
  • Adjustable lift.
  • No rock.
  • Easy fit.

Tips

  • Always dial gauge the crown wheel with the front drive sprocket to improve chain life.
  • Always check sprocket lift and shim up to suit.
  • Always fit new end plate bearings and clutch needle bearings.
  • Make sure both clutch friction, steel, pressure plate fit and slide up and down freely.
  • Always soak clutch plates in ST90 for 24 hours before fitting.
  • Steel tabs on top and bottom friction plate can be bend 20 degrees to aid the clutch.
  • Always use a clutch holding tool to tighten the clutch nut.

Reviews ( 1 )

 

5 star 1. Kevin H 28 Jul 2008 

Excellent quality part. Very light weight compared to the standard sprocket and less turning friction now that the GP clutch bush is replaced by bearings.

 
want to offer a review?
Click here

Questions? ( 1 )

Do you have a Question?

If you would like to ask us a question about this product, please feel free to click here to ask a Question Now!



Peter w on 25 Apr 2009 asked "Hello Guys, Could this crownwheel be used with one of your billet spiders to make a 6 plate clutch? And if so what thickness plates and steels will i need and which thickness top plate will be needed? Thanks for your time.Pete"

MB Scooters Ltd replied: You can not use this crownwheel with our existing 6 plate external spider.

But we have in production our new solid spider that is designed to work with this crownwheel and also have a new extended clutch flange to work with the kit.

(this are on stock).

When the kit is available you can use: 5 standard Surflex plates, with 1 or 12mm clutch steels.

Or 6 green/red plates.

You can use any top plate and use our normal clutch springs.



If you feel something is not correct with this product description or image then please contact us using the same link