Specifications are as follows:

1272 cc engine, 90 X 100mm built by Bob Dunn.   9:1 CR. Less than 1000 careful break-in miles.

New heads & kit, heads modified to “squish” by Dunn

Robinson MkII cams

New 38mm MkI Amal Concentric carbs

Carrillo rods on Dunn’s own (Ducati-type) crank and bottom end

JE forged pistons with titanium nitrided rings

New cylinder muffs with Nicasil alu liners

Custom clutch assembly using Suzuki plates from Barnett

1 5/8” header, muffler w/ Supertrapp, cap opened to 1.65”; free-flow but not
loud

Electric start by Bob Dunn (modified primary cover)

Replica Manx frame w/ oval swingarm of Renolds 531, polyester powdercoat

Front and rear wheels/brakes/hubs, seat pan, front fender and forks are Honda GB500.  Rear fender is shortened Manx.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Lucas Rita ignition with Dyna coil (plug gap .45”); 14AH AGM battery under seat hump

“McDougallator” 12V alternator,  by John McDougall
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The sidestand (owner's design) and footbrake are of 4130 chrome-moly, as is the gearshift lever, which is springloaded to lock in the "up" position when the kickstart crank is used (the foot-peg folds up, too).   Original, wide Vincent pads are used on the pegs for comfort.  This machine is designed to be ridden.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Custom Owen/JP Tanks aluminum gas tank, 5 Imperial gallons less 6 pt R/S oil tank with visible return

Engine mounting plates of 5/16” 6061 T6 aluminum; one piece G50 and RH plate

Crankcase breather modified for greater sectional area

Oil supply line has new Colin Jenner anti-sumping valve
 
 
 
 
 
 
 
 
 

Curb weight: 405 lb / 184kg

 Performance: This Norvin is 100 lb lighter than a Black Shadow, with a 28% larger engine, and significantly more power than a standard Vincent.  It is now geared for 140mph @ 6,000rpm.  The clutch is light, the shifting is sweet.  Handling is sharp and sure.

As a last finishing touch,  the aluminum side panels could be added and painted to match the petrol tank and there is a small glitch in the lower left side of the fuel tank paint which was covered with a “Tigger” decal for Tigger Alldus, after coating inside with Kwik Poly to seal a pinhole leak.

This is a sweet running bike, and the reason the owner disconnected the valve lifter mechanism is it starts running when the first piston goes on compression.  Naturally, that mechanism, the kickstart crank assembly, a spare starter motor chain and some other parts go with the bike.

Payment options:
* Full Cash or wire transfer in advance of shipping.
* 1/2 down, balance escrowed with third party pending delivery.

Shipping arrangements:
The Norvin can be shipped on a pallet via Air Transat from Vancouver, BC or via various other shipping agents in Portland, Oregon or Seattle, Washington.  The owner can deliver the motorcycle to those agents or is open to discussing other shipping options.

To discuss further, contact jim@thevincent.com  or Phone mobile: 304 671 9010.