Attribute | ![]() Norton V4 RR 2020 × | ![]() Erik Buell Racing 1125RR ASB 2011 × |
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General | ||
Production from (year) | 2020 | 2011 |
Make | Norton | Erik Buell Racing |
Model | Norton V4 RR | Erik Buell Racing 1125RR ASB |
Category | Sport | Sport |
Engine and transmission | ||
Engine type | V4, four-stroke | V2, four-stroke |
Valves per cylinder | - | 4 |
Fuel system | Injection. Electronic fuel-injection system. Constantly variable inlet tracts. 8-fuel injectors | Injection |
Engine details | - | 72 and #730; V-Twin. Titanium valves, 42.0mm intake, 35.4 mm exhaust |
Displacement (cm³) | 1,200 | 1,126 |
Power (kw) | 146 | 124.1 |
Cooling system | Liquid | - |
Transmission type,final drive | Chain | Chain |
Torque (Nm) | 130 | 116.6 |
Bore (mm) | 82 | 103 |
Stroke (mm) | 56.8 | 67.5 |
Gearbox | - | 6-speed |
Fuel control | - | Double Overhead Cams/Twin Cam (DOHC) |
Emission details | Euro 4 | - |
Driveline | - | 520 Chain. Primary drive: Straight cut gear, 1.806 ratio. |
Clutch | Slipper clutch | Multiplate Mechanical Slipper |
Compression | 13.6:1 | 14.3:1 |
Exhaust system | - | Stainless steel ultralight 2 into 1 system. |
Chassis | ||
Front suspension | Ohlins NIX30 system front fork. Fully-adjustable rear suspension | Showa Race 43mm inverted fork, fully adjustable with BPF technology providing true separation of rebound and compression damping. |
Rear suspension | Ohlins TTXGP Norton bespoke fully-adjustable rear shock | Light alloy swingarm with Showa Race damper, adjustable compression, rebound and ride height. |
Front brakes | Double disc. Full-floating discs. Radially-mounted Bremb Monobloc calipers. Brembo discs and Brembo master cylinder | Double disc. Semi floating ISO multi-fin rotor with 8 piston ZTL2 caliper |
Rear brakes | Single disc. Brembo caliper and master cylinder | Single disc. Lightweight disc, 2 piston caliper |
Diameter (mm) | 245 | 205 |
Frame type | Aluminium twin tube shotgun chassis | Light alloy large section beam with integral fuel cell. Subframe: Light alloy tubular. |
Front tyre | - | 120/70-ZR17 |
Rear tyre | - | 190/55-ZR17 |
Wheels | - | Front 6 spoke ZTL magnesium, 3.50 x 17. Rear 6 spoke magnesium, 6.00 x 17. |
Front wheel travel (mm) | - | 120 |
Rear wheel travel (mm) | - | 127 |
Rake (fork angle) (degree) | - | 21 |
Other | ||
Starter | Electric | - |
Color options |
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Light | LED lighting | - |
Dimensions | ||
Wheelbase (mm) | 1,430 | 1,400 |
Dry weight (kg) | 179 | 166 |
Power/weight ratio | 0.8156 | 0.7436 |
Performance | ||
Fuel capacity (l) | 18 | 17.41 |