BMW Sports Boxer

Posted by Motor Plus on Thursday, January 5, 2012

SPECS

Engine
Capacity,cd: 1170
Bore x stroke,mm: 101/73
Output,kW/bhp: >96/ /130
Max. torque,rpm: approx. 9,500
Type: Flat twin
No. of cylinders: 2
Compression ratio: 12.5:1
Valves per cylinder: 4
Ø Intake/outlet,mm: 39/33
Throttle valve diameter,mm: 52
Carburetion: BMS-K
Electrical system
Headlamps,W: 1 x H, 1 x Xenon
Starter,kW: 1.1
Power transmission/gearbox
Clutch: Single dry plate clutch, Ø 180 mm
Gearbox: Constant mesh 6-speed gearbox
Primary ratio: 1.824
Gear ratio steps:
  • I: 2.277
  • II: 1.583
  • III: 1.259
  • IV: 1.033
  • V: 0.903
  • VI: 0.805
Rear wheel drive: Shaft drive
Transmission ratio: 2.75
Chassis
Frame type: Main and front frame made of steel tubing, rear section omitted, partially self-supporting powertrain
Front wheel location/suspension: BMW Telelever with Öhlins suspension strut
Rear wheel location/suspension: BMW Paralever with Öhlins suspension strut
Spring travel, front/rear,mm: 110/120
Castor,mm: 87
Wheelbase,mm: 1 487
Steering head angle,°: 66
Brakes:
  • front: Twin disc brake Ø 305 mm, 4-piston fixed caliper, radial bolting
  • rear: Single disc brake Ø 265 mm
Wheels: Forged wheels
  • front: 3.50 x 17
  • rear: 6.00 x 17
Tyres:
  • front: 120/70 ZR 17
  • rear: 190/55 ZR 17

Dimensions and weights

Racing weight with full tank,kg: 195
Tank capacity,l: 23


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