Norton Dunstall (1966-75)

admin — Wed, 29 Mar 2023 17:38:54 +0000

The Norton Dunstall was a motorcycle produced between 1966 and 1975. It was powered by a 745 cc parallel twin engine with overhead valves, and featured air cooling and kick starting. The motorcycle had a four-speed transmission and chain final drive. Its wheelbase measured 1410 mm (55.5 in), and the seat height was 800 mm (31.5 in). The Dunstall was widely recognized as a performance-oriented motorcycle, with many enthusiasts modifying and customizing the bikes to improve their speed and handling. Today, the Norton Dunstall remains a classic among motorcycle collectors and riders, admired for its iconic design and impressive performance capabilities.

Technical specifications:

Make Model: Norton Dunstall

Year: 1966 – 75
Engine: Parallel twin, OHV
Capacity: 745 cc / 45.5 cu in
Cooling System: Ari cooled
Starting: Kick
Transmission: 4-Speed
Final Drive: Chain
Wheelbase: 1410 mm / 55.5 in
Seat Height: 800 mm / 31.5 in
Source: Wikipedia

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KTM LC4 Supercomp (1999)

admin — Sun, 26 Mar 2023 00:50:03 +0000

The KTM 640 LC4 Supercomp is a motorcycle model from 1999 that has a four stroke, single cylinder engine with a 624.6 cc capacity and a compression ratio of 11.5:1. It features liquid cooling and a Mikuni BST 40 carburetor. The ignition is a Kokusan contactless DC-CDI with an advanced system and it has both electric and kick start options. The maximum power output is 40.1 kW at 7000 rpm and the maximum torque is 55 Nm at 5500 rpm. The clutch is multi-disc and the transmission has five speeds. The frame is made of central chrome-moly steel and it has a White Power Up Side Down 4357 MXMA fork front suspension with 275 mm wheel travel and a central shock absorber rear suspension with PRO-LEVER linkage and 300 mm wheel travel. The brakes are single disc, with a 4 piston caliper at the front and 1 piston caliper at the rear. The front wheel has a 90/90-21 tire and the rear wheel has a 130/80-18 tire. The wheelbase is 1510 mm, seat height 925 mm, dry weight 149 kg, and fuel capacity is 11 L.

Technical specifications:

Make Model: KTM 640 LC4 Supercomp

Year: 1999
Engine: Four stroke, single Cylinder. SOHC, 4 valves, engine balancer
Capacity: 624.6 cc / 38.1 cu in
Bore x Stroke: 101 x 78 mm
Compression Ratio: 11.5:1
Cooling System: Liquid cooled
Lubrication: 2 x Eaten oil pumps
Induction: Mikuni BST 40 carburetor
Ignition: Kokusan contactless DC-CDI ignition with advanced system
Starting: Electric & kick
Spark Plug: NGK DRBEACPR 8 E
Battery: 12V 8Ah, maintenance free
Max Power: 40.1 kW / 55 hp @ 7000 rpm
Max Torque: 55 Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm
Clutch: Multi-disc in oil bath
Transmission: 5 Speed
Primary Drive Ratio: 30:81, straight cut gears
Gear Ratios: 1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18
Final Drive Ratio: 17:38
Final Drive: Chain, O-ring 5/8 x 1/4″
Frame: Central chrome-moly steel frame
Front Suspension: White Power Up Side Down 4357 MXMA fork
Front Wheel Travel: 275 mm / 10.8 in
Rear Suspension: Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing
Rear Wheel Travel: 300 mm / 11.8 in
Front Brakes: Single 300 mm disc, 4 piston caliper
Rear Brakes: Single 220 mm disc, 1 piston caliper
Front Tyre: 90/90 – 21
Rear Tyre: 130/80 – 18
Steering Head Angle: 62o
Wheelbase: 1510 mm / 59.4 in
Ground Clearance: 310mm / 12.2 in
Seat Height: 925 mm / 36.4 in
Dry Weight: 149 kg / 328 lbs
GVWR: 350 / 773 lbs
Engine Oil Capacity: 2.1 L / 2.2 US qt / 1.8 Imp qt
Fuel Capacity: 11 L / 2.9 US gal / 2.3 Imp gal

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1966-75 Archives - MotorcycleSpecifications.com

Norton Dunstall (1966-75)

Technical specifications:

KTM LC4 Supercomp (1999)

Technical specifications: