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MrB Bay

Slime Tube Sealer, 16oz (will Do 2 Scooter Inner Tubes)
£ 8.16 £ 10.20
( Ex Vat: £ 8.50 )
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Lightened Electronic flywheel, GP including shortened fins


This is a genuine SIL Indian electronic flywheel (GP taper).

MRB machine it down to lighten it to approximately 2.0kg

Then we weld up the centre boss to strengthen the cam

It is machined to have the shorter standard fins.

This is a complete out right buy.

TIP! When ever you replace an electrical ignition part always strobe and check timing is correct
 Lightened Electronic flywheel, GP including shortened fins
  • Lightened Electronic flywheel, GP including shortened fins
  • Lightened Electronic flywheel, GP including shortened fins
  • Lightened Electronic flywheel, GP including shortened fins
  • Lightened Electronic flywheel, GP including shortened fins
  • Lightened Electronic flywheel, GP including shortened fins
MBL1341K
£ 199.85
Price: £ 166.54 Ex Vat
   Temporarily out of stock

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Features

PART OF THE MRB RACE-TOUR TUNING PACKAGE
  • More power.
  • Smoother running.
  • Modified port timings.
  • Widened port widths.
  • Increased cylinder head compression.
  • Lightened flywheel.
  • V-Force reed valve conversion.
 
 

Technical

PART OF THE MRB RACE-TOUR TUNING PACKAGE
  • Increased power spread.
  • Increased top end speed.
  • Increased low down power.
  • Can be done to existing tunes.
  • Can give up to 37 horse power with no welding.
  • Produces a smoother power spread than the RB cylinder.
  • Produces more power than the RB cylinder.
  • Can be used with any carburettor.
  • Can be used with any exhaust.
  • Can be used with any 58 or 60mm crankshafts.
  • Can be used with 62 or 64mm crankshafts but require much more work.
 
 

Development History

PART OF THE MRB RACE-TOUR TUNING PACKAGE
  • 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 latest reed valve type cylinder tuning.
  • Many months of Dyno development have improved our already excellent Stage 1, 2 and 3 tuning.
  • Our Race-Tour tune works better than any of the Stage 1, 2 or 3 tunes.
 
 

Reasons to Buy

PART OF THE MRB RACE-TOUR TUNING PACKAGE
  • Long term reliable and powerful porting specs.
  • Can be used with standard or performance carbs from 28 - 38mm.
  • Ideal Road-Race tuning or as a Touring tune.
 
 

Tips

PART OF THE MRB RACE-TOUR TUNING PACKAGE
  • Change to the Race-Tour light weight piston.
  • Use a Race-Tour crankshaft.
  • Use a lightened flywheel.
  • Use a MRB Inlet manifold.
  • Use a modified V-Force reed valve.
  • Use the Race-Tour 6 plate clutch for the extra power increase.
  • Use between 19 - 15 degrees ignition timing.
     
  • Use a Dev-Tour exhaust for low to mid end power.
  • Use around 5.0:1 to 4.80:1 for touring pipes.
  • Use our Road cylinder head for a low to mid range tune.
  • Use a 1.5mm head gasket to set up a low to mid range tune.
     
  • Use a JL4 or NK race pipes for top end power.
  • Use around 5.20:1 to 5.0:1 gearing for high revving pipes.
  • Use our Road-Race cylinder head for a mid to top end tune.
  • Don't use a head gasket for a mid to top end tune.
 
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Daniel on 31 Jan 2011 asked "I have a question about "Lightened Electronic flywheel, GP including shortened fins " Hi, one question: Was the flywheel after the development (welding) balanced or not. Many thanks from germany. Daniel"

MB Group, Serious Outdoors Ltd replied: They are not balanced but they are finished machined on centers with a crank taper so as near as dam it are perfect. But the Indian flywheel is made up of many pieces balancing sfterwards could always help, we do no offer this service.

 


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