This auction is for an original Bultaco part, the piston rings "L" type of the model Junior 100 cc, serial number 33M.  The situation of this item is New Old Stock. Bultaco's Ref: 19.10-041/1s. It is the first oversize at 49,75 mm. Maybe to serve and other Bultaco models!. Use please the above mentioned part number to check if it is correct for your bike, or ask me a question with the model and serial number of your bike!.

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Picture shown is the real picture of the product for sale.

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