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WebshopVespa Smal...TuningRacing Exh...Racing Exhaust NORRIE KERR
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Racing Exhaust NORRIE KERR

limited edition for Vespa
90/R/SS/100/125 VMA1T
fits with chassis
modifications/125cc cylinder
also for Vespa 50-125/PV/ET3
/PK50-125/S/SS/XL/2
steel, unpainted, aluminium
silencer, left hand curly

FOR RACE USE ONLY

The Norrie Kerr (NFK) exhaust was designed for race use on Norrie's 90SS race scooters, originally designed in 1983, its design and performance proved itself time and again with race wins and lap records too numerous to mention, its racing career lasted almost 20 years and have still being used to this day.

 

Norrie says "It was created from a desire to have the exact system I needed for my race engines. Dyno's were thin on the ground and a lot of homework was done, reading up on all types of tuners, and their approach. It was noted that in fact there was a true formulae to creating a two stroke expansion chamber, and from that formulae came the NFK system. A big sticking block was the confined area that the system fitted into, hence the tight 'lobster back' arrangement, to get the true full length of the system into the space, over the tyre, (both 350x10 and 300x10), and keeping it inside the side panel. The original systems were made in a thinner material and were prone to having small cracks appearing.

 

The new system uses 1.5mm thick metal to reduce such problems, The mounting had to be simple and direct, whilst absorbing vibrations, so rubber mountings were used. The muffler is now quieter, (not road legal) more efficient and re-packable." This exhaust will also fit with almost all 100cc to 135cc Vespa small frame models, most early models will require a little modification to the side panel brace, Primavera model require side panel toolbox removal, and a PK's will require you to modify the spare wheel mounting plate area.


Customers also searched for this article with:  tuning exhaust, tuning exhaust system, performance exhaust, expansion chamber, exaust, race exhaust, exhuast, racing exhaust, pot


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$407.27
Art.No.
22025000
4,250g / piece
Stock on hand   Amount

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icon scootermodels This product fits the following models
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 cylinder & crankshaft > 125cc necessary
VESPA 50 L 50 V5A1T 2T AC `66-70 cylinder & crankshaft > 125cc necessary
VESPA 50 R 50 V5A1T 2T AC `69-`83 cylinder & crankshaft > 125cc necessary
VESPA 50 Revival 50 V5R1T 2T AC `90- cylinder & crankshaft > 125cc necessary
VESPA 50 S 50 V5SA1T 2T AC `63-`84 cylinder & crankshaft > 125cc necessary
VESPA 50 Special 50 V5A2T 2T AC '69-'72 cylinder & crankshaft > 125cc necessary
VESPA 50 Special 50 V5B1T 2T AC '72-'75 cylinder & crankshaft > 125cc necessary
VESPA 50 Special 50 V5B3T 2T AC '75-'83 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA 50 SR / Sprinter 50 V5SS2T 2T AC `71-`79 cylinder & crankshaft > 125cc necessary
VESPA 50 SS / Super Sprint 50 V5SS1T 2T AC `65-`71 cylinder & crankshaft > 125cc necessary
VESPA 90 90 V9A1T 2T AC `63-`84 cylinder > 125cc recommendable
VESPA 90 Racer 90 V9SS2T 2T AC `71-`74 cylinder > 125cc recommendable
VESPA 90 SS Super Sprint 90 V9SS1T 2T AC `65-`71 cylinder > 125cc recommendable
VESPA 100 (UK) / 100 Sport (US) 100 V9B1T 2T AC `78-`90 cylinder > 125cc recommendable
VESPA 125 125 VMA1T 2T AC `65-`67
VESPA 125 Primavera 125 VMA2T 2T AC `67-`83 frame modifications necessary
VESPA 125 Primavera ET3 125 VMB1T 2T AC `76-`90 frame modifications necessary
VESPA PK 50 50 V5X1T 2T AC `82-`84 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 S / Elestart 50 V5X2T 2T AC `82-`84 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 S Lusso / Elestart 50 V5X2T 2T AC `85-`88 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 SS / Elestart 50 V5S1T 2T AC `83-`86 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL / Elestart 50 V5X3T 2T AC `85-`90 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL FL 50 V5N1T 2T AC `90- cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL HP 50 V5N2T 2T AC `91-`91 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL N NUOVA 50 V5X5T 2T AC `89-`90 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL Rush / Elestart 50 V5X4T 2T AC `88-`90 cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XL2 / Elestart 50 V5X3T 2T AC `90- cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 50 XLS 50 V5S2 2T AC `86- cylinder & crankshaft > 125cc & frame modifications necessary
VESPA PK 80 S / Elestart 80 V8X5T 2T AC `82-`86 cylinder > 125cc recommendable & frame modifications necessary
VESPA PK 80 S Lusso / Elestart 80 V8X5T 2T AC `85-`88 cylinder > 125cc recommendable & frame modifications necessary
VESPA PK100 S / Elestart 100 V9X1T 2T AC `82-`84 cylinder > 125cc recommendable & frame modifications necessary
VESPA PK125 125 VMX1T 2T AC `82-`85 frame modifications necessary
VESPA PK125 ETS / Elestart 125 VMS1T 2T AC `84-`85 frame modifications necessary
VESPA PK125 N NUOVO (FL) 125 VMX7T 2T AC `90-`91 frame modifications necessary
VESPA PK125 S / Elestart 125 VMX5T 2T AC `82-`84 frame modifications necessary
VESPA PK125 XL / Elestart 125 VMX6T 2T AC `86-`90 frame modifications necessary
VESPA PK125 XL2 125 VMX6T 2T AC `90- frame modifications necessary

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