- This is the Bearing Spacerthat fits between the two driveside main bearings on SOHC International 30/40 (and CS1/CJ)) crankcases
These are to fit aluminium crankcase engines as fitted to all road bikes - if you have a magnesium racing engine - we sell the different spacers for those too - item 0656, which have a different width.
These spacers are machined from EN8 and CNC machined with oilway holes all the way around their circumeference - they look beautifully machined. They should be used in unison with the inner mainshaft spacer, item 0664
Note: in the photograph the item in the bag looks wet - this is duck oil to protect them in storage