Yamaha YZF-R9 (2025) vs Zero DS ZF9 (2012) vs Yamaha TT 600 (1988-90) vs Zero DS ZF6 (2012) vs Triumph Speed Twin 1200 RS (2025)
Comparison technical specifications
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| Make: | Yamaha | Zero | Yamaha | Zero | Triumph |
| Model: | YZF-R9 | DS ZF9 | TT 600 | DS ZF6 | Speed Twin 1200 RS |
| Years: | 2025 | 2012 | 1988-90 | 2012 | 2025 |
| Front Suspension: | Telescopic fork, fully adjustable KYB | 38mm Inverted forks with adjustable compression and rebound damping | 43mm Telescopic forks | 38mm Inverted forks with adjustable compression and rebound damping | 43mm USD Marzocchi forks, adjustable for pre-load, compression and rebound damping |
| Rear Suspension: | Swingarm (link suspension), fully-adjustable KYB | Direct-link shock with adjustable spring preload, compression and rebound damping | Alloy swinging arm single shock with adjustable dampers. | Direct-link shock with adjustable spring preload, compression and rebound damping | Twin ?hlins RSUs with external reservoirs, adjustable for pre-load, compression and rebound |
| Front Brakes: | 2x 320mm hydraulic discs, 4-piston calipers, Brembo Stylema radial master cylinder | Single 310mm 2 piston caliper | Single 310mm disc | Single 310mm 2 piston caliper | 2 x 320 mm discs, Brembo Stylema M4.30 radial calipers |
| Rear Brakes: | Single 220mm hydraulic disc, single piston caliper | Single 220mm disc 1 piston caliper | Single 270mm disc | Single 220mm disc 1 piston caliper | Single 220 mm disc, Nissin 2-piston floating caliper |
| Front Tyre: | 120/70 ZR17 M/C (58W) | 100/80-17 | 3.00-21 | 100/80-17 | 120/70 ZR17 |
| Rear Tyre: | 180/55 ZR17 M/C (73W) | 110/90 -16 | 4.60-18 | 110/90 -16 | 160/60 ZR17 |
| Seat Height: | 831 mm / 32.5 in | 897 mm / 35.5 in (Low seat 846 mm/ 33.3 in) | 935 mm / 36.8 in | 897 mm / 35.5 in (Low seat 846 mm/ 33.3 in) | 810 mm / 31.9 in |