Norton V4 RR & SS (2017) vs Norton Mercury 650 (1968-70)
Comparison technical specifications
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| Make: | Norton | Norton |
| Model: | V4 RR & SS | Mercury 650 |
| Years: | 2017 | 1968-70 |
| Engine: | Four stroke, 72 ° V-four cylinder, Chain-driven cams with idler gear for reduced engine height. Titanium inlet valves. Slipper clutch | Four stroke, parallel twin |
| Bore x Stroke: | 82mm x 56.8mm | 68 x 89 mm |
| Compression Ratio: | 13.6:1 | 9.0:1 |
| Cooling System: | Liquid-cooled | Air cooled |
| Induction: | Electronic fuel-injection system. Constantly variable inlet tracts. 8-fuel injectors. Full drive-by-wire system independent of front and rear banks of cylinders for ultimate control and feel | Single concentric carburetor, Amal |
| Ignition: | Keyless ignition system | Coil capacitor |
| Starting: | Electric | Kick |
| Max Power: | 200 hp / 149 kW @ 12,500 rpm | 35 kW / 47 hp |
| Transmission: | Full quickshift system and auto down blipper | 4-Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Ohlins NIX30 system front fork. Fully-adjustable. Fork yokes - Cast top and bottom | Telescopic fork |
| Rear Suspension: | Ohlins TTXGP Norton bespoke fully-adjustable rear shock. Fork yokes - Billet machined | Swingarm, plungers |
| Front Brakes: | 2 x 330mm full-floating discs. Radially-mounted Brembo monobloc calipers. Brembo discs and Brembo master cylinder | Drum, twin leading shoe |
| Rear Brakes: | Single 330mm disc. Brembo caliper and master cylinder | Drum |
| Dry Weight: | 179kg / 395 lbs | 185 kg / 408 lbs |