The Rennen Hive Mini Crank is the lightest square taper crank available. We have spent the last few months testing, optimizing and refining the design to create the most advanced mini crank on the market. Weight reduction is achieved through a honeycomb pocketing arrangement on the backside of each crank arm.

Specs:

Material- As with all Rennen products we only use 7075-T6 Aluminum across all size ranges.

UltraLite Spider not included 

100 lb Weight Limit - Due to the extreme weight reduction design we recommend that this product not be used for a child weighing greater than 100 lb.