1970 NORTON COMMANDO


Norton Commando Roadster, Norton Commando Fastback, Norton motorcycles

The 1970 Norton Commando came in a new guise: The Norton Commando Roadster, or Type R. A new tank & seat, conventional rear fender & those voluptuous upswept pipes! Establishes the 'Commando look' in the public mindset.


Norton Commando, Norton Commando Roadster, Commando Fastback, Norton Motorcycles

NEW ROADSTER
The 1970 Norton Commando line grew to three models, then shrunk back down to two again by years end. What started in 1968 with one model, the Norton Commando (with Fastback styling, but not yet using that name), then grew in 1969 to two models, the Commando Fastback (now using this name to differentiate itself from other Commandos) & the Commando Type S (Street Scrambler) with high pipes on the left side. Now for the 1970 model year, a third model was added, and the one that would come to symbolize the Norton Commando & Norton Motorcycles as a whole. The Commando Type R, was called the 1970 Norton Commando Roadster. It had the same tank & seat at the Type S, but with attractive down pipes & tastefully upswept reverse-cone silencers. The whole package looked fantastic. In fact, after all these years, the Norton Commando Roadster still looks great.

Norton Commando, Norton motorcycles, Norton Commando Fastback


MODEL DESIGNATIONS RESHUFFLED
Part way through the 1970 model year, the Type S was dropped from the lineup. The Fastback got the same upswept reverse cone mufflers as the Roadster & became the Fastback MkII. The Roadster, now the only other model, was still considered a MkI. These designations would all be reshuffled again for 1971.

Norton Commando, Norton motorcycles, Norton Commando fastback
RUNNING GEAR
Both bikes came with slimline Roadholder forks without gaiters. The Lucas handlebar controls were now integrated into the lever pivot blocks. Sealed ball races were now used for the headstock, which worked extremely well.

MACHINE OF THE YEAR
Motor Cycle News awarded its prestigious "Machine of the Year Award" to the 1970 Norton Commando, based on a poll of their readers. Today, we'd call this the "Peoples' Choice Award". The Commando won this honor every year from 1968 to 1972.


1979 Norton Commando SPECIFICATIONS:


1970 NORTON COMMANDO
Model Designations:
Fastback MkI.........................................................20M3
Street Scrambler....................................................Type S
Roadster................................................................Type R
Original List Price (approx) .......................................$1,450
Engine:
Type......................................................................OHV parallel twin
Dislplacement (actual):........................................... 746cc
Bore..................................................................... 73mm / 2.875"
Stroke................................................................... 89mm / 3.503
Compression Ratio:................................................. 9:0:1
Horsepower: ......................................................... 58hp @ 6500rpm
Carburetors ...........................................................(2) 30mm Amal Concentrics
Ignition..................................................................(2) coils
Oil System..............................................................dry sump
Oil Capacity.............................................................6pt.
Lighting System.......................................................12V battery & alternator
Ignition Timing, fully advanced...................................28-degrees BTDC
Primary drive...........................................................triplex chain
Clutch Type............................................................. multi-plate diaphram
Gearbox Ratios:
1st Gear...................................................................12.40:1
2nd Gear................................................................. 8.25:1
3rd Gear.................................................................. 5.90:1
4th Gear.................................................................. 4.84:1
Top Speeds in Gears @ 7000rpm:
1st Gear................................................................... 43.2mph
2nd Gear ................................................................. 64.8mph
3rd Gear ................................................................. 90.6mph
4th Gear ................................................................. 110.4mph
Dimensions:
Wheelbase................................................................ 57.1 inches
Seat Height............................................................... 31.3 inches
Curb Weight.............................................................. 431lb.


Check out these NORTON BOOKS:


NORTON MOTORCYCLES


NORTON COMMANDO, COMPLETE STORY



NORTON COMMANDO


ESSENTIAL BUYERS GUIDE - NORTON COMMANDO


NORTON COMMANDO: ULTIMATE PORTFOLIO


NORTON MOTORCYCLES FACTORY WORKSHOP MANUAL 1957-70


THE MANX NORTON


THE BOOK OF NORTON DOMINATOR TWINS


NORTON DOMINATOR PERFORMANCE PORTFOLIO


For more Great Books, please visit our
MOTORCYCLE BOOK STORE




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