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MrB Bay

M8 X 30mm Repair Washer Stainless Steel
£ 0.22 £ 0.26
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MRD Race-Tour 195 cylinder kit, MRB


THIS IS THE UK MADE VERSION OF THE RACE-TOUR KIT

All parts of this kit have been made in the UK and are hand machined and fettled by Mark Broadhurst,

There are only a few cylinder left, when these are gone they are gone.

It includes:
 

  • MRB Stage 4 - 5 Modern day retro touring tuned
  • Fully cast and machined
  • Heat treated and hipped
  • Ceramic plated
  • MRB Race-Tour piston kit at 65mm
  • Machined cylinder head with locating drop
  • Complete set of studs
  • All gaskets included
     
Ready to fit.

 MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
  • MRD Race-Tour 195 cylinder kit, MRB
MRB0761K
Normal Price: £ 680.75
£ 567.29 (Ex Vat)
Sale Price: £ 544.60
Price: £ 453.83 Ex Vat
   Quantity :


 
 

Features

  • Strengthened aluminum.
  • Precision machined.
  • Revised MRB retro old school port timings.
  • Reshaped exhaust port.
  • Reshaped inlet port.
  • Reshaped transfer ports.
  • Porting spec for high powered touring.
  • Extra material for higher spec tuning.
  • 200 large block cylinder same as 190 small block cylinder.
  • Uses 200 Inlet stud spacing on both small and large block cylinders.
  • Improved casting thickness around the cylinder head and base gasket.
  • Extra 4 studs if required to tighten the cylinder head.
  • Cylinder head machined so it drops into the bore to centralize squish clearances and prevent gaskets blowing.
  • Improved fuel economy saves money paying for the kit long term.
 
 

Technical

  • Made from modern aluminum.
  • Heat treated.
  • CNC machined.
  • Ceramic lined.
  • Uses MRB Race-Tour piston at 65mm.
  • Gives around 10hp with 22mm carb and Clubman exhaust.
  • Gives around 15-19hp with 24/25mm carb and Clubman exhaust.
  • Gives around 16-19hp with 30mm carb and Clubman exhaust.
  • Gives around 18-20hp with 30mm carb and Dev-Tour exhaust.
  • Available with normal 39mm crown height pistons to suit 107mm or 110mm con rods.
  • Available with 30mm crown height pistons to suit TV cranks with 116mm or cranks with 115mm con rods.
  • With the use of different base/head gaskets/packers port timings are adjustable to suit Touring or Road-Race use.
 
 

Development History

  • Mark Broadhurst has probably tuned and machined more Lambretta cylinder barrels and heads than anyone else.
  • This development and history of tuning has been put into our touring cylinder kit.
  • The key word is touring.
  • Mark has developed his often copied touring Stage 4 tuning technology and modified it into a modern cylinder kit.
 
 

Reasons to Buy

  • Long term reliable and powerful porting specs.
  • Can be used with standard or performance carbs from 18 - 35mm.
  • Can be used with standard exhausts, Clubman or performance expansion chambers.
  • 4 studded exhaust flange for new MRB expansions due soon, but can still use standard exhausts no problem.
  • Thicker anti warp head and base faces.
  • Improved port flowing.
  • Alloy cylinder to run cooler with an extra top fin.
  • Ceramic plated for long lasting friction free running.
  • Easily modified transfer feeds to match existing over sized transfers.
  • Uses top quality Race-Tour forged pistons.
  • Cylinder head recessed into the cylinder bore for easy set squish clearances.
  • Extra four studs to bolt cylinder head down.
  • The most versatile Lambretta cylinder kit ever made.
 
 

Tips

  • Check ring gap before fitting.
  • Check the cylinder slides down the cylinder studs and drops into casing free.
  • Seal base gaskets or face with silicone sealer.
  • Seal cylinder head gasket or faces with a loctite.
  • Torque head nuts down to 18-20 lbs ft and re-torque at 500 - 800 miles.
  • Only use unleaded fuels not super unleaded fuels.
  • Always check squish clearances, it should be 1 - 1.5mm.
  • These cylinders have a new shape inlet 200 type port, inlet manifolds ideally need matching to suit.
 
 

5 star 1. Shinji 14 Feb 2012 

Ex GP500 rider Mr.Aragaki rode race-tour 195 lambretta in last Dec.2011. He rode lambretta first time and asked to me " Is this rotary disk valve?" He was very impressed that I told him it is piston valve. I think it is good thing, much smoother than any other piston valve.

 
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Adam W on 11 Mar 2012 asked "I am looking to fit this into an original LI125 , what crank would you recommend to upgrade to and also is there a benefit of also fitting reed valves? As what is the fuel consumption like? Thanks Adam "

MB Group, Serious Outdoors Ltd replied: These kits will work on any crankshaft depending on carb and exhaust used which limit or increase power. These are good cranks MBGM0252 and MBGM0241. Cstomers tell us 60 - 80mpg. And the reed can lift and spread the power. Check out the information in this link http://www.lambrettaspares.com/info/lambretta-small-block-cylinders/190-*-195-race-*-tour-+61.html

 
 

Mark D on 18 Mar 2011 asked "I have a question about "MRB Race-Tour 195 cylinder kit, MRB" Mark, still considering this for a LI150 special (1964) upgrade. If I go for top end set up e.g., 30mm carb and dev tour what gearing do you suggest -- will I have to upgrade my gearbox? Thank"

MB Group, Serious Outdoors Ltd replied: It depends on the gearbox that is actually fitted in the bike. I prefer the Li150 gearbox or Sx200 or the Gp125/200 gearbox. By using these you can use reliable sprockets and chains to get a good gear ratio. We've run between 5.22:1 and 4.80:1 on the same set up. A lot also depends on how heavy you are or do you ride 2 up with bags. I always prefer to let an engine run easy and pull the gearing, this way you may loose some top end but it will pull 4th easy all the time. So Li150 (Italian) 15x46 or Sx200 15x46 or Gp125/20 18x47 for starters.

 
 

Mark D on 19 Feb 2011 asked "I have a question about "MRB Race-Tour 195 cylinder kit, MRB" Hi - I'm stripping and rebuilding an Li150 Special engine that has stood for 25 years. What other components would you recommend changing to enable running of this kit? What are the advantages of this kit over the tuned Mugello you do (similar prices) Cheers,Mark"

MB Group, Serious Outdoors Ltd replied: Ideally you should change the crankshaft. But it could run on a standard one if you wanted with a standard carb and exhaust. But if you are thinking of one of our RT kits then you want performance. So change the crank to a performance one which varies in price from around £100 to £400. We find as the RT kit is really thought about its works however you set it up, unlike Mugello kits which vary every time you fit one. We have seen lots of Mugellos giving 10 -14bhp where as ours with the same carbs and exhausts do 18+bhp.

 


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