1971 Egli-Vincent 1,272cc Black Shadow
Registration no. KWJ 127J
Frame no. C-EV 187
Engine no. F10/AB/1B/3557
One of the worlds best known motorcycle frame makers, Swiss engineer Fritz Egli built his first frame in what would turn out to be a highly successful attempt to tame the wayward handling of his Vincent v-win racer. The Vincent used a spine-type frame and so did Egli, though his was tubular rather than box-section and all-welded rather than bolted-up in construction. This trademark large-diameter spine has been a feature of virtually all Eglis frames made since, proving adaptable to all types of motorcycle engine layout from British singles to across-the-frame Japanese fours. As Egli moved on to other projects, the machines continued to be produced in limited numbers by other specialists. These days widely regarded as a marque in its own right, it is the Egli-Vincent v-twin, with its exciting combination of classic power and modern chassis technology, which has proved to be its makers most enduring legacy.
This Egli-Vincent was purchased by the current vendor as a rolling chassis in 2000 and completed in 2002 using a genuine Black Shadow engine. Bored and stroked to 90x100mm (1,272cc) the latter incorporates BTH twin-plug electronic ignition; new valves and springs; spun cast-iron liners by Fahron Engineering; bob-weighted crankshaft; new Carrillo con-rods; new main shafts and bearings; J&E forged pistons; re-Stellited 105 cams and followers; lightened cam pinions; drive-side crankshaft oil seals; Alpha big-end bearing assembly; squish-band cylinder heads; and a Grosset electric starter. Mixture is ingested via 38mm Amal Concentric Mk2 carburettors and exhausted into 1⅞ header pipes leading to a collector box and silencer, the entire system being stainless steel, which is also used for the chain guard, rear mudguard and all fastenings. The footrests, gear change levers, foot brake levers and alloy brackets are fabricated from Dural, while braided hoses are used for the brake lines, breathers and petrol pipes.
The running gear comprises fully adjustable 45mm front forks with twin disc brakes griped by Nissin 4-pot callipers; floating rear brake disc on a magnesium hub; new Sebac shock absorbers; and new 17 alloy wheel rims laced with stainless steel butted spokes. Other new components include the alloy fuel tank and front mudguard; sealed-for-life wheel bearings; steering damper; fairing; drive chains; tyres/tubes; and Chinamo with JG 12-volt converter. Further noteworthy features include a multi-plate dry clutch; digital speedometer; 15 amp gel battery; and Japanese switch gear.
We are advised that the maximum power output is 70bhp-plus at the rear wheel with a similar torque figure (in lb/ft). Racing 40W castor oil is used in the engine, with 80/90W EP in the gearbox. The preferred spark plugs are NGK B8EV or B8ES timed to fire 30 degrees before top dead centre. Super-unleaded fuel is used together with 50cc of TetraBOOST additive per 5.75 litres to give an octane rating of approximately 100. Included in the sale are a new set of inlet valve guides and seals plus instruction sheets for the self-starter, rev counter and BTH magneto. There is also a special long Allen key for the magneto caps lower inner screw.
Kept covered in a heated and insulated workshop, the Egli has not been ridden since 2006 and is described by the private vendor as in generally very good/excellent condition. The machine is offered with sundry invoices, current MoT and Swansea V5.
- Please note this machine has 1 7/8" header pipes.