KAWASAKI ULTRA 300/310

*Images are representatives, the actual product may be different. 

Epr-design Crankshaft

EPR Series are BW flagship series.

Based on 10+ years crankshaft manufacture experience, BW introduced the EPR-DESIGN Billet crankshaft in 2013. It carries all the benefits that billet has, but with lighter weight and stronger structure.

  • 100% 4-axis CNC profiling 
  • Special Knife-edge counter weight for reducing resistance at high RPM
  • V-style lightening holes machined by 5-axis CNC
  • Undercut counter weight for additional weight reduction

– Standard in premium AISI4340
– Upgrade to EN40B at an additional cost
– Upgrade centerline gundrill hole for super light weight at an additional cost.

Part#StrokeMain JournalThrust WidthCrank PinWeight
EPR-157A-73.273.20 mm41.000 mm27.53 mm39.000 mm9.7 kg

Applications

KAWASAKI – JET SKI ULTRA 300X 2011-2013

KAWASAKI – JET SKI ULTRA 300LX 2011-2013

KAWASAKI – JET SKI ULTRA 310LX 2014-present

KAWASAKI – JET SKI ULTRA 310R 2014-present

KAWASAKI – JET SKI ULTRA 310X 2014-present

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