The product is an Ultra Dyno right crank arm for old school BMX bikes, made by Takagi in Japan. It is designed in a vibrant red color, perfect for vintage bicycle enthusiasts looking to add a retro touch to their ride. With a 165mm length and 130 BCD, this crank arm is sure to provide a unique and nostalgic look for your BMX bike, making it a desirable choice for those seeking to restore or customize their vintage cycle.


This is drive side only, as shown. Takagi ultra dyno crank arm. This one came off a 1975 AAA Rascal bmx bicycle that I’m parting out.


CRANKS SHOW WEAR CONSISTENT WITH AGE, use and storage. Sun fade, scratches, 7 stamp as shown. Please closely review all pics, zoom in for detail and ask questions to self assess condition and ensure satisfaction.


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