Lambretta Headset (handlebar) light switch hydraulic housing, plain, MB


This is our popular housing to mount a hydraulic master cylinder to a Lambretta headset and includes fasteners.

It uses an SX / GP type light switch and is designed to fit Italian and Spanish Series 3 headsets.

This is a MB product especially designed by Mark Broadhurst

Lambretta Headset (handlebar) light switch hydraulic housing, plain, MB

£ 52.98
Price: £ 44.15 Ex Vat

Temporarily out of stock

Notify Me


The holes for mounting the master cylinder are inline (i.e. they are above each other - imagine 12 and 6 o'clock on a clock).

Development History

Mark Broadhurst was the first to produce this item in the early 90's, it's now been copied but not in a safe way so always insist on genuine MrB products.

The early version used offset mounting holes to suit the Yamaha RD master cylinder and was cast large to fit late Indian and Series 1/2. This meant it was a versatile item which could be fitted to any handlebar.

We improved the later item to work with smaller master cylinders which used inline mounting holes. The later item was reduced inside to fit all thin type headsets, see tips for this.

Reasons to Buy

It's the original made in England from Mark Broadhrst.


If you want to fit it to an later Indian or Series 1/2 headset you need to file down the tapered part of the headset to get it to fit........... then trim the headset to suit the housing........... ideally do this before you paint your headset.

With a Series 1/2 headset the inside of the housing needs opening to suit the larger diameter handlebar of the Series 1/2.


there are no customer reviews at present
want to be the first to offer a review?
to place a review click here

Questions? ( 3 )

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!

Steven R on 03 Oct 2010 asked "I have a question about "Light switch hydraulic housing, plain, MRB" I want to fit front disc brake and also indicators to my Li Special. Does this housing take an Indian switch with indicator button? PS. Great spares website"

MB Scooters Ltd replied: No these use the Gp Dip / Dazzle light switch so it will not do he job.

Shaun on 21 Mar 2009 asked "I have a question about "Light switch hydraulic housing plain MRB" Do you have a matching gear support housing for a hydraulic clutch ?"

MB Scooters Ltd replied: Sorry we do not do a hydraulic clutch conversion.

We did these conversions in the 1980's and found a friction free nylon lined cable was easier to pull in than a hydraulic conversion, saving you hundreds of pounds.

Graham j on 30 Jun 2008 asked "I have a question about "Light switch hydraulic housing plain MRB" Is this for the Yamaha master cylinder?"

MB Scooters Ltd replied: Our hydraulic light switch housing fits any master cylinder with inline mounting holes.

Some Yamaha master cylinders are inline and some are offset, you need to check your master cylinder or order the master cylinders that we sell to suit the housing.

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