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Ossa Crankshaft DMR MAR SDR Pioneer Stiletto Explorer 1970-73

4 Reviews
SKU: OW-110-010M
ID: 1746
Quantity discounts available:

VintCo has all new reproduction crankshafts completely assembled for your early 70’s 250cc Ossa that will get you back on track.  These complete Ossa Crankshafts are made with modern materials and manufacturing techniques to ensure an as good or better than OEM fitment and performance. These Ossa crankshafts have the heavy duty Yamaha conversion installed.  VintCo crankshafts are assembled with a Heavy Duty Forged Steel connecting rod and with the wrist pin bearing included.  These new Crankshafts fit the DMR, MAR, SDR, Pioneer, Stiletto and Explorer models 1970-73.  Don’t waste time rebuilding your old crank when you can get a complete reproduction new crank to drop in.   This newly manufactured crankshaft from VintCo will help you keep the ride going!

  • New Reproduction crankshaft (not rebuilt)
  • Heavy duty Yamaha conversion installed
  • Modern design rod and bearing
  • Wrist pin bearing included

Stock Availability: in stock


  • 1970 Ossa DMR
  • 1970 Ossa Pioneer 250cc
  • 1970 Ossa Stiletto 250cc
  • 1971 Ossa Pioneer 250cc
  • 1971 Ossa MAR Mick Andrews Replica 250cc
  • 1971 Ossa Stiletto 250cc
  • 1971 Ossa Stiletto TT 250cc
  • 1971 Ossa DMR
  • 1972 Ossa Pioneer 250cc
  • 1972 Ossa MAR Mick Andrews Replica 250cc
  • 1972 Ossa Stiletto 250cc
  • 1972 Ossa Stiletto TT 250cc
  • 1972 Ossa DMR
  • 1973 Ossa SDR Six Day Replica
  • 1973 Ossa Explorer 250cc
  • 1973 Ossa MAR Mick Andrews Replica 250cc
  • 1973 Ossa Stiletto 250cc
  • 1973 Ossa Stiletto TT 250cc

Ratings & Reviews

4 reviews

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Thank You Vintco, five stars all day!

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Wow. New cranks for all Ossa motors. Not sure why, but my motors run quieter with these, compared to rebuilt cranks with the rod conversion. Excellent.

New cranks makes rebuilds faster.

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Correct size crank for a faster rebuild. No more machining for the HD rod kit.

Perfect fit

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This crank dropped right into my 1971 Stiletto TT engine cases perfectly and finished the balance of the 2019 AHRMA race season (totaling 7 nationals) with no issues.

Quick Service

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