Gilera 300 Extra (1964-69) vs Gilera Nordcape 600 (1990-) vs Gilera R1 125 (1988-89) vs Gilera Northwest 600 (1991-) vs Gilera Nexus 125 (2006-08) vs Gilera GFR 125SP (1993)
Comparison technical specifications
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| Make: | Gilera | Gilera | Gilera | Gilera | Gilera | Gilera |
| Model: | 300 Extra | Nordcape 600 | R1 125 | Northwest 600 | Nexus 125 | GFR 125SP |
| Years: | 1964-69 | 1990- | 1988-89 | 1991- | 2006-08 | 1993 |
| Engine: | Four stroke, single cylinder, 2 valves | Four stroke, single cylinder, DOHC, 4 valves | Two stroke, single cylinder, reed valve | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, single cylinder, SOHC, 4 valve | Two stroke, single cylinder, |
| Capacity: | 300 cc / 18.3 cu-in | 558 cc / 34.0 cu-in | 124 ccc / 7.6 cu-in | 558 cc / 34.0 cu-in | 124 cc / 7.6 cu-in | 125 cc / 7.6 cu-in |
| Bore x Stroke: | 60 x 54 mm | 98 x 74 mm | 56 x 50.5 mm | 98 x 74 mm | 57 x 48.6 mm | 56 x 50.5 mm |
| Cooling System: | Air Cooled | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 7.8:1 | 10.5:1 | 13.0;1 | 10.5:1 | 12.0:1 | 12.5:1 |
| Induction: | Carburetor | 40mm Teikei carburetor | 28 Dell'Orto PHBH carburetors | 2X 30mm Teikei E30PV2A | RON 95 unleaded petrol | Dell'Orto VHSA 34ES carburetor |
| Max Power: | 10.9 kW / 15 hp @ 8000 rpm | 49.5 hp / 36.5 kW @ 7250 rpm | 29.3 hp / 21.8 kW @ 9900 rpm | 49.5 hp / 36.5 kW @ 7250 rpm | 14,5 hp / 10,7 kW @ 9750 rpm | 31.4 hp / 23.4 kW @ 11300 rpm |
| Transmission: | 4 Speed | 5 Speed | 6 Speed | 5 Speed | Twist-and-go CVT | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Chain | Belt | Chain |
| Front Suspension: | Hydraulic telescopic forks | 41mm forks | Telescopic forks | 41mmMorzocchi forks 150mm wheel travel | Telescopic hydraulic fork with f 35 mm shafts; 94 mm wheel travel | 40mm Upside-down forks |
| Rear Suspension: | Dual chocks | Boge shocks variable preload | Swing arm gas single shock | Boge shocks variable preload | Double hydraulic shock absorber with four-position spring preload; 76 mm wheel travel | Boge single shock |
| Front Brakes: | Drum | 2x 270mm discs 4 piston calipers | Single 240mm disc | 2x 270mm discs 4 piston calipers | Single 260mm disc | 2x 300mm discs 2 piston calipers |
| Rear Brakes: | Drum | Single 240mm disc 2 piston caliper | Drum | Single 240mm disc 2 piston caliper | Single 240 disc | Single 240mm disc 2 piston caliper |
| Front Tyre: | 3.00 -17 | 120/60-17 | 2.75-21 | 120/60-17 | 120/70-14 | 110/70-17 |
| Rear Tyre: | 3.25 -17 | 160/60-17 | 4.10-17 | 160/60-17 | 140/60-14 | 150/60-17 |
| Fuel Capacity: | 19 Litres / 4.2 US gal | 12 Litres / 3.17 US gal | 15 Litres / 3.9 US gal | 13 Litres / 3.9 US gal |